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Psychopathy - Wikipedia

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id="toc-Signs_and_symptoms-sublist" class="vector-toc-list"> <li id="toc-Primary_features" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Primary_features"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.1</span> <span>Primary features</span> </div> </a> <ul id="toc-Primary_features-sublist" class="vector-toc-list"> <li id="toc-Core_traits" class="vector-toc-list-item vector-toc-level-3"> <a class="vector-toc-link" href="#Core_traits"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.1.1</span> <span>Core traits</span> </div> </a> <ul id="toc-Core_traits-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Low_anxiety_and_fearlessness" class="vector-toc-list-item vector-toc-level-3"> <a class="vector-toc-link" href="#Low_anxiety_and_fearlessness"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.1.2</span> <span>Low anxiety and fearlessness</span> </div> </a> <ul id="toc-Low_anxiety_and_fearlessness-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Offending" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Offending"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.2</span> <span>Offending</span> </div> </a> <ul id="toc-Offending-sublist" class="vector-toc-list"> <li id="toc-Criminality" class="vector-toc-list-item vector-toc-level-3"> <a class="vector-toc-link" href="#Criminality"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.2.1</span> <span>Criminality</span> </div> </a> <ul id="toc-Criminality-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Violence" class="vector-toc-list-item vector-toc-level-3"> <a class="vector-toc-link" href="#Violence"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.2.2</span> <span>Violence</span> </div> </a> <ul id="toc-Violence-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Sexual_offending" class="vector-toc-list-item vector-toc-level-3"> <a class="vector-toc-link" href="#Sexual_offending"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.2.3</span> <span>Sexual offending</span> </div> </a> <ul id="toc-Sexual_offending-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Other_offending" class="vector-toc-list-item vector-toc-level-3"> <a class="vector-toc-link" href="#Other_offending"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.2.4</span> <span>Other offending</span> </div> </a> <ul id="toc-Other_offending-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Childhood_and_adolescent_precursors" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Childhood_and_adolescent_precursors"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.3</span> <span>Childhood and adolescent precursors</span> </div> </a> <ul id="toc-Childhood_and_adolescent_precursors-sublist" class="vector-toc-list"> <li id="toc-Conduct_disorder" class="vector-toc-list-item vector-toc-level-3"> <a class="vector-toc-link" href="#Conduct_disorder"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.3.1</span> <span>Conduct disorder</span> </div> </a> <ul id="toc-Conduct_disorder-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Mental_traits" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Mental_traits"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.4</span> <span>Mental traits</span> </div> </a> <ul id="toc-Mental_traits-sublist" class="vector-toc-list"> <li id="toc-Cognition" class="vector-toc-list-item vector-toc-level-3"> <a class="vector-toc-link" href="#Cognition"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.4.1</span> <span>Cognition</span> </div> </a> <ul id="toc-Cognition-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Emotion_recognition_and_empathy" class="vector-toc-list-item vector-toc-level-3"> <a class="vector-toc-link" href="#Emotion_recognition_and_empathy"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.4.2</span> <span>Emotion recognition and empathy</span> </div> </a> <ul id="toc-Emotion_recognition_and_empathy-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Moral_judgment" class="vector-toc-list-item vector-toc-level-3"> <a class="vector-toc-link" href="#Moral_judgment"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.4.3</span> <span>Moral judgment</span> </div> </a> <ul id="toc-Moral_judgment-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> </ul> </li> <li id="toc-History" class="vector-toc-list-item vector-toc-level-1"> <a class="vector-toc-link" href="#History"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>History</span> </div> </a> <button aria-controls="toc-History-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Toggle History subsection</span> </button> <ul id="toc-History-sublist" class="vector-toc-list"> <li id="toc-Etymology" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Etymology"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.1</span> <span>Etymology</span> </div> </a> <ul id="toc-Etymology-sublist" class="vector-toc-list"> <li id="toc-Sociopathy" class="vector-toc-list-item vector-toc-level-3"> <a class="vector-toc-link" href="#Sociopathy"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.1.1</span> <span>Sociopathy</span> </div> </a> <ul id="toc-Sociopathy-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Precursors" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Precursors"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.2</span> <span>Precursors</span> </div> </a> <ul id="toc-Precursors-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-20th_century" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#20th_century"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.3</span> <span>20th century</span> </div> </a> <ul id="toc-20th_century-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Definition" class="vector-toc-list-item vector-toc-level-1"> <a class="vector-toc-link" href="#Definition"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Definition</span> </div> </a> <button aria-controls="toc-Definition-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Toggle Definition subsection</span> </button> <ul id="toc-Definition-sublist" class="vector-toc-list"> <li id="toc-Concepts" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Concepts"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.1</span> <span>Concepts</span> </div> </a> <ul id="toc-Concepts-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Measurement" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Measurement"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.2</span> <span>Measurement</span> </div> </a> <ul id="toc-Measurement-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Personality_dimensions" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Personality_dimensions"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.3</span> <span>Personality dimensions</span> </div> </a> <ul id="toc-Personality_dimensions-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Criticism_of_current_conceptions" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Criticism_of_current_conceptions"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.4</span> <span>Criticism of current conceptions</span> </div> </a> <ul id="toc-Criticism_of_current_conceptions-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Cause" class="vector-toc-list-item vector-toc-level-1"> <a class="vector-toc-link" href="#Cause"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Cause</span> </div> </a> <button aria-controls="toc-Cause-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Toggle Cause subsection</span> </button> <ul id="toc-Cause-sublist" class="vector-toc-list"> <li id="toc-Genetic" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Genetic"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.1</span> <span>Genetic</span> </div> </a> <ul id="toc-Genetic-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Environment" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Environment"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.2</span> <span>Environment</span> </div> </a> <ul id="toc-Environment-sublist" class="vector-toc-list"> <li id="toc-Brain_injury" class="vector-toc-list-item vector-toc-level-3"> <a class="vector-toc-link" href="#Brain_injury"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.2.1</span> <span>Brain injury</span> </div> </a> <ul id="toc-Brain_injury-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Childhood_trauma" class="vector-toc-list-item vector-toc-level-3"> <a class="vector-toc-link" href="#Childhood_trauma"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.2.2</span> <span>Childhood trauma</span> </div> </a> <ul id="toc-Childhood_trauma-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Other_theories" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Other_theories"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.3</span> <span>Other theories</span> </div> </a> <ul id="toc-Other_theories-sublist" class="vector-toc-list"> <li id="toc-Evolutionary_explanations" class="vector-toc-list-item vector-toc-level-3"> <a class="vector-toc-link" href="#Evolutionary_explanations"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.3.1</span> <span>Evolutionary explanations</span> </div> </a> <ul id="toc-Evolutionary_explanations-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> </ul> </li> <li id="toc-Mechanisms" class="vector-toc-list-item vector-toc-level-1"> <a class="vector-toc-link" href="#Mechanisms"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>Mechanisms</span> </div> </a> <button aria-controls="toc-Mechanisms-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Toggle Mechanisms subsection</span> </button> <ul id="toc-Mechanisms-sublist" class="vector-toc-list"> <li id="toc-Psychological" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Psychological"> <div class="vector-toc-text"> <span class="vector-toc-numb">5.1</span> <span>Psychological</span> </div> </a> <ul id="toc-Psychological-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Neurological" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Neurological"> <div class="vector-toc-text"> <span class="vector-toc-numb">5.2</span> <span>Neurological</span> </div> </a> <ul id="toc-Neurological-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Biochemical" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Biochemical"> <div class="vector-toc-text"> <span class="vector-toc-numb">5.3</span> <span>Biochemical</span> </div> </a> <ul id="toc-Biochemical-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Diagnosis" class="vector-toc-list-item vector-toc-level-1"> <a class="vector-toc-link" href="#Diagnosis"> <div class="vector-toc-text"> <span class="vector-toc-numb">6</span> <span>Diagnosis</span> </div> </a> <button aria-controls="toc-Diagnosis-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Toggle Diagnosis subsection</span> </button> <ul id="toc-Diagnosis-sublist" class="vector-toc-list"> <li id="toc-Tools" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Tools"> <div class="vector-toc-text"> <span class="vector-toc-numb">6.1</span> <span>Tools</span> </div> </a> <ul id="toc-Tools-sublist" class="vector-toc-list"> <li id="toc-Psychopathy_Checklist" class="vector-toc-list-item vector-toc-level-3"> <a class="vector-toc-link" href="#Psychopathy_Checklist"> <div class="vector-toc-text"> <span class="vector-toc-numb">6.1.1</span> <span>Psychopathy Checklist</span> </div> </a> <ul id="toc-Psychopathy_Checklist-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Psychopathic_Personality_Inventory" class="vector-toc-list-item vector-toc-level-3"> <a class="vector-toc-link" href="#Psychopathic_Personality_Inventory"> <div class="vector-toc-text"> <span class="vector-toc-numb">6.1.2</span> <span>Psychopathic Personality Inventory</span> </div> </a> <ul id="toc-Psychopathic_Personality_Inventory-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Triarchic_Psychopathy_Measure" class="vector-toc-list-item vector-toc-level-3"> <a class="vector-toc-link" href="#Triarchic_Psychopathy_Measure"> <div class="vector-toc-text"> <span class="vector-toc-numb">6.1.3</span> <span>Triarchic Psychopathy Measure</span> </div> </a> <ul id="toc-Triarchic_Psychopathy_Measure-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-DSM_and_ICD" class="vector-toc-list-item vector-toc-level-3"> <a class="vector-toc-link" href="#DSM_and_ICD"> <div class="vector-toc-text"> <span class="vector-toc-numb">6.1.4</span> <span>DSM and ICD</span> </div> </a> <ul id="toc-DSM_and_ICD-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Other_tools" class="vector-toc-list-item vector-toc-level-3"> <a class="vector-toc-link" href="#Other_tools"> <div class="vector-toc-text"> <span class="vector-toc-numb">6.1.5</span> <span>Other tools</span> </div> </a> <ul id="toc-Other_tools-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Comorbidity" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Comorbidity"> <div class="vector-toc-text"> <span class="vector-toc-numb">6.2</span> <span>Comorbidity</span> </div> </a> <ul id="toc-Comorbidity-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Sex_differences" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Sex_differences"> <div class="vector-toc-text"> <span class="vector-toc-numb">6.3</span> <span>Sex differences</span> </div> </a> <ul id="toc-Sex_differences-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Management" class="vector-toc-list-item vector-toc-level-1"> <a class="vector-toc-link" href="#Management"> <div class="vector-toc-text"> <span class="vector-toc-numb">7</span> <span>Management</span> </div> </a> <button aria-controls="toc-Management-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Toggle Management subsection</span> </button> <ul id="toc-Management-sublist" class="vector-toc-list"> <li id="toc-Clinical" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Clinical"> <div class="vector-toc-text"> <span class="vector-toc-numb">7.1</span> <span>Clinical</span> </div> </a> <ul id="toc-Clinical-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Legal" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Legal"> <div class="vector-toc-text"> <span class="vector-toc-numb">7.2</span> <span>Legal</span> </div> </a> <ul id="toc-Legal-sublist" class="vector-toc-list"> <li id="toc-United_Kingdom" class="vector-toc-list-item vector-toc-level-3"> <a class="vector-toc-link" href="#United_Kingdom"> <div class="vector-toc-text"> <span class="vector-toc-numb">7.2.1</span> <span>United Kingdom</span> </div> </a> <ul id="toc-United_Kingdom-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-United_States" class="vector-toc-list-item vector-toc-level-3"> <a class="vector-toc-link" href="#United_States"> <div class="vector-toc-text"> <span class="vector-toc-numb">7.2.2</span> <span>United States</span> </div> </a> <ul id="toc-United_States-sublist" class="vector-toc-list"> <li id="toc-&quot;Sexual_psychopath&quot;_laws" class="vector-toc-list-item vector-toc-level-4"> <a class="vector-toc-link" href="#&quot;Sexual_psychopath&quot;_laws"> <div class="vector-toc-text"> <span class="vector-toc-numb">7.2.2.1</span> <span>"Sexual psychopath" laws</span> </div> </a> <ul id="toc-&quot;Sexual_psychopath&quot;_laws-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> </ul> </li> </ul> </li> <li id="toc-Prognosis" class="vector-toc-list-item vector-toc-level-1"> <a class="vector-toc-link" href="#Prognosis"> <div class="vector-toc-text"> <span class="vector-toc-numb">8</span> <span>Prognosis</span> </div> </a> <ul id="toc-Prognosis-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Frequency" class="vector-toc-list-item vector-toc-level-1"> <a class="vector-toc-link" href="#Frequency"> <div class="vector-toc-text"> <span class="vector-toc-numb">9</span> <span>Frequency</span> </div> </a> <ul id="toc-Frequency-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Society_and_culture" class="vector-toc-list-item vector-toc-level-1"> <a class="vector-toc-link" href="#Society_and_culture"> <div class="vector-toc-text"> <span class="vector-toc-numb">10</span> <span>Society and culture</span> </div> </a> <button aria-controls="toc-Society_and_culture-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Toggle Society and culture subsection</span> </button> <ul id="toc-Society_and_culture-sublist" class="vector-toc-list"> <li id="toc-In_the_workplace" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#In_the_workplace"> <div class="vector-toc-text"> <span class="vector-toc-numb">10.1</span> <span>In the workplace</span> </div> </a> <ul id="toc-In_the_workplace-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-In_fiction" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#In_fiction"> <div class="vector-toc-text"> <span class="vector-toc-numb">10.2</span> <span>In fiction</span> </div> </a> <ul id="toc-In_fiction-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-See_also" class="vector-toc-list-item vector-toc-level-1"> <a class="vector-toc-link" href="#See_also"> <div class="vector-toc-text"> <span class="vector-toc-numb">11</span> <span>See also</span> </div> </a> <ul id="toc-See_also-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-References" class="vector-toc-list-item vector-toc-level-1"> <a class="vector-toc-link" href="#References"> <div class="vector-toc-text"> <span class="vector-toc-numb">12</span> <span>References</span> </div> </a> <ul id="toc-References-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Bibliography" class="vector-toc-list-item vector-toc-level-1"> <a class="vector-toc-link" href="#Bibliography"> <div class="vector-toc-text"> <span class="vector-toc-numb">13</span> <span>Bibliography</span> </div> </a> <ul id="toc-Bibliography-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-External_links" class="vector-toc-list-item vector-toc-level-1"> <a class="vector-toc-link" href="#External_links"> <div class="vector-toc-text"> <span class="vector-toc-numb">14</span> <span>External links</span> </div> </a> <ul id="toc-External_links-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Contents" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="Toggle the table of contents" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">Toggle the table of contents</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Psychopathy</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" 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Available in 65 languages" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-65" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">65 languages</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-af mw-list-item"><a href="https://af.wikipedia.org/wiki/Psigopatie" title="Psigopatie – Afrikaans" lang="af" hreflang="af" data-title="Psigopatie" data-language-autonym="Afrikaans" data-language-local-name="Afrikaans" class="interlanguage-link-target"><span>Afrikaans</span></a></li><li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D8%A7%D8%B9%D8%AA%D9%84%D8%A7%D9%84_%D9%86%D9%81%D8%B3%D9%8A" title="اعتلال نفسي – Arabic" lang="ar" hreflang="ar" data-title="اعتلال نفسي" data-language-autonym="العربية" data-language-local-name="Arabic" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-ast mw-list-item"><a href="https://ast.wikipedia.org/wiki/Sicopat%C3%ADa" title="Sicopatía – Asturian" lang="ast" hreflang="ast" data-title="Sicopatía" data-language-autonym="Asturianu" data-language-local-name="Asturian" class="interlanguage-link-target"><span>Asturianu</span></a></li><li class="interlanguage-link interwiki-az mw-list-item"><a href="https://az.wikipedia.org/wiki/Psixopatiya" title="Psixopatiya – Azerbaijani" lang="az" hreflang="az" data-title="Psixopatiya" data-language-autonym="Azərbaycanca" data-language-local-name="Azerbaijani" class="interlanguage-link-target"><span>Azərbaycanca</span></a></li><li class="interlanguage-link interwiki-bn mw-list-item"><a href="https://bn.wikipedia.org/wiki/%E0%A6%B8%E0%A6%BE%E0%A6%87%E0%A6%95%E0%A7%8B%E0%A6%AA%E0%A7%8D%E0%A6%AF%E0%A6%BE%E0%A6%A5%E0%A6%BF" title="সাইকোপ্যাথি – Bangla" lang="bn" hreflang="bn" data-title="সাইকোপ্যাথি" data-language-autonym="বাংলা" data-language-local-name="Bangla" class="interlanguage-link-target"><span>বাংলা</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/%D0%9F%D1%81%D0%B8%D1%85%D0%BE%D0%BF%D0%B0%D1%82%D0%B8%D1%8F" title="Психопатия – Bulgarian" lang="bg" hreflang="bg" data-title="Психопатия" data-language-autonym="Български" data-language-local-name="Bulgarian" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Psicopatia" title="Psicopatia – Catalan" lang="ca" hreflang="ca" data-title="Psicopatia" data-language-autonym="Català" data-language-local-name="Catalan" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Psychopatie" title="Psychopatie – Czech" lang="cs" hreflang="cs" data-title="Psychopatie" data-language-autonym="Čeština" data-language-local-name="Czech" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/Psykopati" title="Psykopati – Danish" lang="da" hreflang="da" data-title="Psykopati" data-language-autonym="Dansk" data-language-local-name="Danish" class="interlanguage-link-target"><span>Dansk</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Psychopathie" title="Psychopathie – German" lang="de" hreflang="de" data-title="Psychopathie" data-language-autonym="Deutsch" data-language-local-name="German" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/Ps%C3%BChhopaatia" title="Psühhopaatia – Estonian" lang="et" hreflang="et" data-title="Psühhopaatia" data-language-autonym="Eesti" data-language-local-name="Estonian" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/%CE%A8%CF%85%CF%87%CE%BF%CF%80%CE%AC%CE%B8%CE%B5%CE%B9%CE%B1" title="Ψυχοπάθεια – Greek" lang="el" hreflang="el" data-title="Ψυχοπάθεια" data-language-autonym="Ελληνικά" data-language-local-name="Greek" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Psicopat%C3%ADa" title="Psicopatía – Spanish" lang="es" hreflang="es" data-title="Psicopatía" data-language-autonym="Español" data-language-local-name="Spanish" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://eo.wikipedia.org/wiki/Psikopatio" title="Psikopatio – Esperanto" lang="eo" hreflang="eo" data-title="Psikopatio" data-language-autonym="Esperanto" data-language-local-name="Esperanto" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/Psikopatia" title="Psikopatia – Basque" lang="eu" hreflang="eu" data-title="Psikopatia" data-language-autonym="Euskara" data-language-local-name="Basque" class="interlanguage-link-target"><span>Euskara</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D8%B3%D8%A7%DB%8C%DA%A9%D9%88%D9%BE%D8%A7%D8%AA%DB%8C" title="سایکوپاتی – Persian" lang="fa" hreflang="fa" data-title="سایکوپاتی" data-language-autonym="فارسی" data-language-local-name="Persian" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fo mw-list-item"><a href="https://fo.wikipedia.org/wiki/Psykopati" title="Psykopati – Faroese" lang="fo" hreflang="fo" data-title="Psykopati" data-language-autonym="Føroyskt" data-language-local-name="Faroese" class="interlanguage-link-target"><span>Føroyskt</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Psychopathie" title="Psychopathie – French" lang="fr" hreflang="fr" data-title="Psychopathie" data-language-autonym="Français" data-language-local-name="French" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-fy mw-list-item"><a href="https://fy.wikipedia.org/wiki/Psychopaty" title="Psychopaty – Western Frisian" lang="fy" hreflang="fy" data-title="Psychopaty" data-language-autonym="Frysk" data-language-local-name="Western Frisian" class="interlanguage-link-target"><span>Frysk</span></a></li><li class="interlanguage-link interwiki-ga mw-list-item"><a href="https://ga.wikipedia.org/wiki/S%C3%ADceapaite" title="Síceapaite – Irish" lang="ga" hreflang="ga" data-title="Síceapaite" data-language-autonym="Gaeilge" data-language-local-name="Irish" class="interlanguage-link-target"><span>Gaeilge</span></a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://gl.wikipedia.org/wiki/Psicopat%C3%ADa_(trastorno_mental)" title="Psicopatía (trastorno mental) – Galician" lang="gl" hreflang="gl" data-title="Psicopatía (trastorno mental)" data-language-autonym="Galego" data-language-local-name="Galician" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EC%82%AC%EC%9D%B4%EC%BD%94%ED%8C%A8%EC%8A%A4" title="사이코패스 – Korean" lang="ko" hreflang="ko" data-title="사이코패스" data-language-autonym="한국어" data-language-local-name="Korean" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-hy mw-list-item"><a href="https://hy.wikipedia.org/wiki/%D4%B1%D5%B6%D5%B1%D5%AB_%D5%AD%D5%A1%D5%B6%D5%A3%D5%A1%D6%80%D5%B8%D6%82%D5%B4" title="Անձի խանգարում – Armenian" lang="hy" hreflang="hy" data-title="Անձի խանգարում" data-language-autonym="Հայերեն" data-language-local-name="Armenian" class="interlanguage-link-target"><span>Հայերեն</span></a></li><li class="interlanguage-link interwiki-hi mw-list-item"><a href="https://hi.wikipedia.org/wiki/%E0%A4%AE%E0%A4%A8%E0%A5%8B%E0%A4%B5%E0%A4%BF%E0%A4%95%E0%A5%83%E0%A4%A4%E0%A4%BF" title="मनोविकृति – Hindi" lang="hi" hreflang="hi" data-title="मनोविकृति" data-language-autonym="हिन्दी" data-language-local-name="Hindi" class="interlanguage-link-target"><span>हिन्दी</span></a></li><li class="interlanguage-link interwiki-hr mw-list-item"><a href="https://hr.wikipedia.org/wiki/Psihopatija" title="Psihopatija – Croatian" lang="hr" hreflang="hr" data-title="Psihopatija" data-language-autonym="Hrvatski" data-language-local-name="Croatian" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-io mw-list-item"><a href="https://io.wikipedia.org/wiki/Psikopatio" title="Psikopatio – Ido" lang="io" hreflang="io" data-title="Psikopatio" data-language-autonym="Ido" data-language-local-name="Ido" class="interlanguage-link-target"><span>Ido</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Psikopati" title="Psikopati – Indonesian" lang="id" hreflang="id" data-title="Psikopati" data-language-autonym="Bahasa Indonesia" data-language-local-name="Indonesian" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-is mw-list-item"><a href="https://is.wikipedia.org/wiki/Si%C3%B0blinda" title="Siðblinda – Icelandic" lang="is" hreflang="is" data-title="Siðblinda" data-language-autonym="Íslenska" data-language-local-name="Icelandic" class="interlanguage-link-target"><span>Íslenska</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Psicopatia" title="Psicopatia – Italian" lang="it" hreflang="it" data-title="Psicopatia" data-language-autonym="Italiano" data-language-local-name="Italian" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-he badge-Q17437796 badge-featuredarticle mw-list-item" title="featured article badge"><a href="https://he.wikipedia.org/wiki/%D7%A4%D7%A1%D7%99%D7%9B%D7%95%D7%A4%D7%AA%D7%99%D7%94" title="פסיכופתיה – Hebrew" lang="he" hreflang="he" data-title="פסיכופתיה" data-language-autonym="עברית" data-language-local-name="Hebrew" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-jv mw-list-item"><a href="https://jv.wikipedia.org/wiki/Psikopat" title="Psikopat – Javanese" lang="jv" hreflang="jv" data-title="Psikopat" data-language-autonym="Jawa" data-language-local-name="Javanese" class="interlanguage-link-target"><span>Jawa</span></a></li><li class="interlanguage-link interwiki-ky mw-list-item"><a href="https://ky.wikipedia.org/wiki/%D0%9F%D1%81%D0%B8%D1%85%D0%BE%D0%BF%D0%B0%D1%82%D0%B8%D1%8F" title="Психопатия – Kyrgyz" lang="ky" hreflang="ky" data-title="Психопатия" data-language-autonym="Кыргызча" data-language-local-name="Kyrgyz" class="interlanguage-link-target"><span>Кыргызча</span></a></li><li class="interlanguage-link interwiki-la mw-list-item"><a href="https://la.wikipedia.org/wiki/Psychopathia" title="Psychopathia – Latin" lang="la" hreflang="la" data-title="Psychopathia" data-language-autonym="Latina" data-language-local-name="Latin" class="interlanguage-link-target"><span>Latina</span></a></li><li class="interlanguage-link interwiki-lv mw-list-item"><a href="https://lv.wikipedia.org/wiki/Psihop%C4%81tija" title="Psihopātija – Latvian" lang="lv" hreflang="lv" data-title="Psihopātija" data-language-autonym="Latviešu" data-language-local-name="Latvian" class="interlanguage-link-target"><span>Latviešu</span></a></li><li class="interlanguage-link interwiki-lb mw-list-item"><a href="https://lb.wikipedia.org/wiki/Psychopathie" title="Psychopathie – Luxembourgish" lang="lb" hreflang="lb" data-title="Psychopathie" data-language-autonym="Lëtzebuergesch" data-language-local-name="Luxembourgish" class="interlanguage-link-target"><span>Lëtzebuergesch</span></a></li><li class="interlanguage-link interwiki-lt mw-list-item"><a href="https://lt.wikipedia.org/wiki/Psichopatija" title="Psichopatija – Lithuanian" lang="lt" hreflang="lt" data-title="Psichopatija" data-language-autonym="Lietuvių" data-language-local-name="Lithuanian" class="interlanguage-link-target"><span>Lietuvių</span></a></li><li class="interlanguage-link interwiki-arz mw-list-item"><a href="https://arz.wikipedia.org/wiki/%D8%B3%D9%8A%D9%83%D9%88%D8%A8%D8%A7%D8%AA%D9%8A%D9%87" title="سيكوباتيه – Egyptian Arabic" lang="arz" hreflang="arz" data-title="سيكوباتيه" data-language-autonym="مصرى" data-language-local-name="Egyptian Arabic" class="interlanguage-link-target"><span>مصرى</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/Psikopat" title="Psikopat – Malay" lang="ms" hreflang="ms" data-title="Psikopat" data-language-autonym="Bahasa Melayu" data-language-local-name="Malay" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Psychopathie" title="Psychopathie – Dutch" lang="nl" hreflang="nl" data-title="Psychopathie" data-language-autonym="Nederlands" data-language-local-name="Dutch" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E7%B2%BE%E7%A5%9E%E7%97%85%E8%B3%AA" title="精神病質 – Japanese" lang="ja" hreflang="ja" data-title="精神病質" data-language-autonym="日本語" data-language-local-name="Japanese" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/Psykopati" title="Psykopati – Norwegian Bokmål" lang="nb" hreflang="nb" data-title="Psykopati" data-language-autonym="Norsk bokmål" data-language-local-name="Norwegian Bokmål" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-nn mw-list-item"><a href="https://nn.wikipedia.org/wiki/Psykopat" title="Psykopat – Norwegian Nynorsk" lang="nn" hreflang="nn" data-title="Psykopat" data-language-autonym="Norsk nynorsk" data-language-local-name="Norwegian Nynorsk" class="interlanguage-link-target"><span>Norsk nynorsk</span></a></li><li class="interlanguage-link interwiki-uz mw-list-item"><a href="https://uz.wikipedia.org/wiki/Psixopatiya" title="Psixopatiya – Uzbek" lang="uz" hreflang="uz" data-title="Psixopatiya" data-language-autonym="Oʻzbekcha / ўзбекча" data-language-local-name="Uzbek" class="interlanguage-link-target"><span>Oʻzbekcha / ўзбекча</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Psicopatia" title="Psicopatia – Portuguese" lang="pt" hreflang="pt" data-title="Psicopatia" data-language-autonym="Português" data-language-local-name="Portuguese" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/Psihopatie" title="Psihopatie – Romanian" lang="ro" hreflang="ro" data-title="Psihopatie" data-language-autonym="Română" data-language-local-name="Romanian" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%9F%D1%81%D0%B8%D1%85%D0%BE%D0%BF%D0%B0%D1%82%D0%B8%D1%8F_(%D1%81%D0%B8%D0%BD%D0%B4%D1%80%D0%BE%D0%BC)" title="Психопатия (синдром) – Russian" lang="ru" hreflang="ru" data-title="Психопатия (синдром)" data-language-autonym="Русский" data-language-local-name="Russian" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sco mw-list-item"><a href="https://sco.wikipedia.org/wiki/Psychopathy" title="Psychopathy – Scots" lang="sco" hreflang="sco" data-title="Psychopathy" data-language-autonym="Scots" data-language-local-name="Scots" class="interlanguage-link-target"><span>Scots</span></a></li><li class="interlanguage-link interwiki-sq mw-list-item"><a href="https://sq.wikipedia.org/wiki/Psikopatia" title="Psikopatia – Albanian" lang="sq" hreflang="sq" data-title="Psikopatia" data-language-autonym="Shqip" data-language-local-name="Albanian" class="interlanguage-link-target"><span>Shqip</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Psychopathy" title="Psychopathy – Simple English" lang="en-simple" hreflang="en-simple" data-title="Psychopathy" data-language-autonym="Simple English" data-language-local-name="Simple English" class="interlanguage-link-target"><span>Simple English</span></a></li><li class="interlanguage-link interwiki-sk mw-list-item"><a href="https://sk.wikipedia.org/wiki/Psychopatia" title="Psychopatia – Slovak" lang="sk" hreflang="sk" data-title="Psychopatia" data-language-autonym="Slovenčina" data-language-local-name="Slovak" class="interlanguage-link-target"><span>Slovenčina</span></a></li><li class="interlanguage-link interwiki-sl mw-list-item"><a href="https://sl.wikipedia.org/wiki/Psihopatija" title="Psihopatija – Slovenian" lang="sl" hreflang="sl" data-title="Psihopatija" data-language-autonym="Slovenščina" data-language-local-name="Slovenian" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-ckb mw-list-item"><a href="https://ckb.wikipedia.org/wiki/%D8%B3%D8%A7%DB%8C%DA%A9%DB%86%D9%BE%D8%A7%D8%AA%DB%8C" title="سایکۆپاتی – Central Kurdish" lang="ckb" hreflang="ckb" data-title="سایکۆپاتی" data-language-autonym="کوردی" data-language-local-name="Central Kurdish" class="interlanguage-link-target"><span>کوردی</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/Psihopatija" title="Psihopatija – Serbian" lang="sr" hreflang="sr" data-title="Psihopatija" data-language-autonym="Српски / srpski" data-language-local-name="Serbian" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-sh mw-list-item"><a href="https://sh.wikipedia.org/wiki/Psihopatija" title="Psihopatija – Serbo-Croatian" lang="sh" hreflang="sh" data-title="Psihopatija" data-language-autonym="Srpskohrvatski / српскохрватски" data-language-local-name="Serbo-Croatian" class="interlanguage-link-target"><span>Srpskohrvatski / српскохрватски</span></a></li><li class="interlanguage-link interwiki-su mw-list-item"><a href="https://su.wikipedia.org/wiki/Psikopat" title="Psikopat – Sundanese" lang="su" hreflang="su" data-title="Psikopat" data-language-autonym="Sunda" data-language-local-name="Sundanese" class="interlanguage-link-target"><span>Sunda</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/Psykopatia" title="Psykopatia – Finnish" lang="fi" hreflang="fi" data-title="Psykopatia" data-language-autonym="Suomi" data-language-local-name="Finnish" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/Psykopati" title="Psykopati – Swedish" lang="sv" hreflang="sv" 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class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><div class="shortdescription nomobile noexcerpt noprint searchaux" style="display:none">Mental health disorder</div> <style data-mw-deduplicate="TemplateStyles:r1236090951">.mw-parser-output .hatnote{font-style:italic}.mw-parser-output div.hatnote{padding-left:1.6em;margin-bottom:0.5em}.mw-parser-output .hatnote i{font-style:normal}.mw-parser-output .hatnote+link+.hatnote{margin-top:-0.5em}@media print{body.ns-0 .mw-parser-output .hatnote{display:none!important}}</style><div role="note" class="hatnote navigation-not-searchable">Not to be confused with <a href="/wiki/Psychosis" title="Psychosis">Psychosis</a>, <a href="/wiki/Psychopathology" title="Psychopathology">Psychopathology</a>, <a href="/wiki/Psychic" title="Psychic">Psychic</a>, or <a href="/wiki/Sycophancy" title="Sycophancy">Sycophancy</a>.</div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236090951"><div role="note" class="hatnote navigation-not-searchable">"Psychopaths" and "Psychopath" redirect here. For other uses, see <a href="/wiki/Psychopath_(disambiguation)" class="mw-disambig" title="Psychopath (disambiguation)">Psychopath (disambiguation)</a>.</div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236090951"><div role="note" class="hatnote navigation-not-searchable">"Sociopathy" and "Sociopath" redirect here. For another usage of these terms, see <a href="/wiki/Antisocial_personality_disorder" title="Antisocial personality disorder">antisocial personality disorder</a>.</div> <p class="mw-empty-elt"> </p> <div class="shortdescription nomobile noexcerpt noprint searchaux" style="display:none">Medical condition</div><style data-mw-deduplicate="TemplateStyles:r1257001546">.mw-parser-output .infobox-subbox{padding:0;border:none;margin:-3px;width:auto;min-width:100%;font-size:100%;clear:none;float:none;background-color:transparent}.mw-parser-output .infobox-3cols-child{margin:auto}.mw-parser-output .infobox .navbar{font-size:100%}@media screen{html.skin-theme-clientpref-night .mw-parser-output .infobox-full-data:not(.notheme)>div:not(.notheme)[style]{background:#1f1f23!important;color:#f8f9fa}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .infobox-full-data:not(.notheme) div:not(.notheme){background:#1f1f23!important;color:#f8f9fa}}@media(min-width:640px){body.skin--responsive .mw-parser-output .infobox-table{display:table!important}body.skin--responsive .mw-parser-output .infobox-table>caption{display:table-caption!important}body.skin--responsive .mw-parser-output .infobox-table>tbody{display:table-row-group}body.skin--responsive .mw-parser-output .infobox-table tr{display:table-row!important}body.skin--responsive .mw-parser-output .infobox-table th,body.skin--responsive .mw-parser-output .infobox-table td{padding-left:inherit;padding-right:inherit}}</style><table class="infobox ib-medical-condition"><tbody><tr><th colspan="2" class="infobox-above" style="background:#ccc">Psychopathy</th></tr><tr><th scope="row" class="infobox-label">Pronunciation</th><td class="infobox-data"><style data-mw-deduplicate="TemplateStyles:r1126788409">.mw-parser-output .plainlist ol,.mw-parser-output .plainlist ul{line-height:inherit;list-style:none;margin:0;padding:0}.mw-parser-output .plainlist ol li,.mw-parser-output .plainlist ul li{margin-bottom:0}</style><div class="plainlist"><ul><li><span class="rt-commentedText nowrap"><span class="IPA nopopups noexcerpt" lang="en-fonipa"><a href="/wiki/Help:IPA/English" title="Help:IPA/English">/<span style="border-bottom:1px dotted"><span title="&#39;s&#39; in &#39;sigh&#39;">s</span><span title="/aɪ/: &#39;i&#39; in &#39;tide&#39;">aɪ</span><span title="/ˈ/: primary stress follows">ˈ</span><span title="&#39;k&#39; in &#39;kind&#39;">k</span><span title="/ɒ/: &#39;o&#39; in &#39;body&#39;">ɒ</span><span title="&#39;p&#39; in &#39;pie&#39;">p</span><span title="/ə/: &#39;a&#39; in &#39;about&#39;">ə</span><span title="/θ/: &#39;th&#39; in &#39;thigh&#39;">θ</span><span title="/i/: &#39;y&#39; in &#39;happy&#39;">i</span></span>/</a></span></span>&#x20;</li></ul></div></td></tr><tr><th scope="row" class="infobox-label"><a href="/wiki/Medical_specialty" title="Medical specialty">Specialty</a></th><td class="infobox-data"><a href="/wiki/Psychiatry" title="Psychiatry">Psychiatry</a>, <a href="/wiki/Clinical_psychology" title="Clinical psychology">clinical psychology</a>, <a href="/wiki/Criminology" title="Criminology">criminology</a></td></tr><tr><th scope="row" class="infobox-label"><a href="/wiki/Signs_and_symptoms" title="Signs and symptoms">Symptoms</a></th><td class="infobox-data"><a href="/wiki/Boldness" title="Boldness">Boldness</a>, <a href="/wiki/Superficial_charm" title="Superficial charm">superficial charm</a>, <a href="/wiki/Disinhibition" title="Disinhibition">disinhibition</a>, lack of <a href="/wiki/Empathy" title="Empathy">empathy</a> or <a href="/wiki/Remorse" title="Remorse">remorse</a>, inclination to <a href="/wiki/Violence" title="Violence">violence</a> and <a href="/wiki/Psychological_manipulation" class="mw-redirect" title="Psychological manipulation">psychological manipulation</a>, <a href="/wiki/Impulsivity" title="Impulsivity">impulsivity</a>, <a href="/wiki/Narcissism" title="Narcissism">narcissism</a></td></tr><tr><th scope="row" class="infobox-label">Causes</th><td class="infobox-data">Genetic factors, low drive for affiliation, experiencing neglect or maltreatment</td></tr><tr><th scope="row" class="infobox-label"><a href="/wiki/Risk_factor" title="Risk factor">Risk factors</a></th><td class="infobox-data"><a href="/wiki/Family_history" class="mw-redirect" title="Family history">Family history</a>, fearless temperament, experiencing neglect or maltreatment</td></tr><tr><th scope="row" class="infobox-label"><a href="/wiki/Differential_diagnosis" title="Differential diagnosis">Differential diagnosis</a></th><td class="infobox-data"><a href="/wiki/Antisocial_personality_disorder" title="Antisocial personality disorder">Antisocial personality disorder</a>, <a href="/wiki/Narcissistic_personality_disorder" title="Narcissistic personality disorder">narcissistic personality disorder</a>, <a href="/wiki/Sexual_sadism_disorder" title="Sexual sadism disorder">sexual sadism disorder</a>, <a href="/wiki/Psychosis" title="Psychosis">psychosis</a>, other psychotic disorders such as <a href="/wiki/Schizophrenia" title="Schizophrenia">schizophrenia</a>, <a href="/wiki/Schizotypal_disorder" class="mw-redirect" title="Schizotypal disorder">schizotypal disorder</a>, <a href="/wiki/Schizoaffective_disorder" title="Schizoaffective disorder">schizoaffective disorder</a></td></tr><tr><th scope="row" class="infobox-label">Prevention</th><td class="infobox-data">Proper care of children</td></tr><tr><th scope="row" class="infobox-label">Treatment</th><td class="infobox-data">Forms of <a href="/wiki/Psychotherapy" title="Psychotherapy">psychotherapy</a> including <a href="/wiki/Schema_therapy" title="Schema therapy">schema therapy</a> for adults and parent management training for children</td></tr><tr><th scope="row" class="infobox-label"><a href="/wiki/Medication" title="Medication">Medication</a></th><td class="infobox-data">None</td></tr><tr><th scope="row" class="infobox-label"><a href="/wiki/Prognosis" title="Prognosis">Prognosis</a></th><td class="infobox-data">Poor</td></tr></tbody></table><p><b>Psychopathy</b>, or <b>psychopathic personality</b>,<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">&#91;</span>1<span class="cite-bracket">&#93;</span></a></sup> is a <a href="/wiki/Personality" title="Personality">personality</a> <a href="/wiki/Construct_(psychology)" title="Construct (psychology)">construct</a><sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">&#91;</span>2<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">&#91;</span>3<span class="cite-bracket">&#93;</span></a></sup> characterized by impaired <a href="/wiki/Empathy" title="Empathy">empathy</a> and <a href="/wiki/Remorse" title="Remorse">remorse</a>, in combination with <a href="/wiki/Phenotypic_trait" title="Phenotypic trait">traits</a> of <a href="/wiki/Boldness" title="Boldness">boldness</a>, <a href="/wiki/Disinhibition" title="Disinhibition">disinhibition</a>, and <a href="/wiki/Egocentrism" title="Egocentrism">egocentrism</a>. These traits are often masked by <a href="/wiki/Superficial_charm" title="Superficial charm">superficial charm</a> and <a href="/wiki/Psychopathic_Personality_Inventory" title="Psychopathic Personality Inventory">immunity to stress</a>,<sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">&#91;</span>4<span class="cite-bracket">&#93;</span></a></sup> which create an outward appearance of apparent normalcy.<sup id="cite_ref-triarchic_model_5-0" class="reference"><a href="#cite_note-triarchic_model-5"><span class="cite-bracket">&#91;</span>5<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-Without_Conscience_6-0" class="reference"><a href="#cite_note-Without_Conscience-6"><span class="cite-bracket">&#91;</span>6<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-:19_7-0" class="reference"><a href="#cite_note-:19-7"><span class="cite-bracket">&#91;</span>7<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-8" class="reference"><a href="#cite_note-8"><span class="cite-bracket">&#91;</span>8<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-9" class="reference"><a href="#cite_note-9"><span class="cite-bracket">&#91;</span>9<span class="cite-bracket">&#93;</span></a></sup> </p><p><a href="/wiki/Hervey_M._Cleckley" title="Hervey M. Cleckley">Hervey M. Cleckley</a>, an American <a href="/wiki/Psychiatrist" title="Psychiatrist">psychiatrist</a>, influenced the initial diagnostic criteria for antisocial personality reaction/disturbance in the <i><a href="/wiki/Diagnostic_and_Statistical_Manual_of_Mental_Disorders" title="Diagnostic and Statistical Manual of Mental Disorders">Diagnostic and Statistical Manual of Mental Disorders</a></i> (DSM), as did American psychologist <a href="/wiki/George_E._Partridge" title="George E. Partridge">George E. Partridge</a>.<sup id="cite_ref-Partridge1930_10-0" class="reference"><a href="#cite_note-Partridge1930-10"><span class="cite-bracket">&#91;</span>10<span class="cite-bracket">&#93;</span></a></sup> The <i>DSM</i> and <i><a href="/wiki/International_Classification_of_Diseases" title="International Classification of Diseases">International Classification of Diseases</a></i> (ICD) subsequently introduced the diagnoses of <a href="/wiki/Antisocial_personality_disorder" title="Antisocial personality disorder">antisocial personality disorder</a> (ASPD) and <a href="/wiki/Antisocial_personality_disorder#DSM-5" title="Antisocial personality disorder">dissocial personality disorder</a> (DPD) respectively, stating that these diagnoses have been referred to (or include what is referred to) as psychopathy or <a href="#Sociopathy">sociopathy</a>. The creation of ASPD and DPD was driven by the fact that many of the classic traits of psychopathy were impossible to measure objectively.<sup id="cite_ref-gap_11-0" class="reference"><a href="#cite_note-gap-11"><span class="cite-bracket">&#91;</span>11<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-Semple_12-0" class="reference"><a href="#cite_note-Semple-12"><span class="cite-bracket">&#91;</span>12<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-Handbook_of_Psychopathy_13-0" class="reference"><a href="#cite_note-Handbook_of_Psychopathy-13"><span class="cite-bracket">&#91;</span>13<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-Hare1996_14-0" class="reference"><a href="#cite_note-Hare1996-14"><span class="cite-bracket">&#91;</span>14<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-HareHarpur_15-0" class="reference"><a href="#cite_note-HareHarpur-15"><span class="cite-bracket">&#91;</span>15<span class="cite-bracket">&#93;</span></a></sup> Canadian psychologist <a href="/wiki/Robert_D._Hare" title="Robert D. Hare">Robert D. Hare</a> later re-popularized the construct of psychopathy in criminology with his <a href="/wiki/Psychopathy_Checklist" title="Psychopathy Checklist">Psychopathy Checklist</a>.<sup id="cite_ref-gap_11-1" class="reference"><a href="#cite_note-gap-11"><span class="cite-bracket">&#91;</span>11<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-Handbook_of_Psychopathy_13-1" class="reference"><a href="#cite_note-Handbook_of_Psychopathy-13"><span class="cite-bracket">&#91;</span>13<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-aspd_statement_16-0" class="reference"><a href="#cite_note-aspd_statement-16"><span class="cite-bracket">&#91;</span>16<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-Hare_Psychopathy_Checklist_17-0" class="reference"><a href="#cite_note-Hare_Psychopathy_Checklist-17"><span class="cite-bracket">&#91;</span>17<span class="cite-bracket">&#93;</span></a></sup> </p><p>Although no <a href="/wiki/Psychiatry" title="Psychiatry">psychiatric</a> or <a href="/wiki/Psychology" title="Psychology">psychological</a> organization has sanctioned a diagnosis titled "psychopathy", assessments of psychopathic characteristics are widely used in <a href="/wiki/Criminal_justice" title="Criminal justice">criminal justice</a> settings in some nations and may have important consequences for individuals.<sup class="noprint Inline-Template" style="white-space:nowrap;">&#91;<i><a href="/wiki/Wikipedia:Citing_sources" title="Wikipedia:Citing sources"><span title="What are those consequences? For which individuals? (October 2021)">specify</span></a></i>&#93;</sup> The study of psychopathy is an active field of research. The term is also used by the general public, popular press, and in <a href="/wiki/Fictional_portrayals_of_psychopaths" title="Fictional portrayals of psychopaths">fictional portrayals</a>.<sup id="cite_ref-Hare_Psychopathy_Checklist_17-1" class="reference"><a href="#cite_note-Hare_Psychopathy_Checklist-17"><span class="cite-bracket">&#91;</span>17<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-LecterMyth_18-0" class="reference"><a href="#cite_note-LecterMyth-18"><span class="cite-bracket">&#91;</span>18<span class="cite-bracket">&#93;</span></a></sup> While the abbreviated term "psycho" is often employed in common usage in general media along with "crazy", "<a href="/wiki/Insanity" title="Insanity">insane</a>", and "mentally ill", there is a categorical difference between <a href="/wiki/Psychosis" title="Psychosis">psychosis</a> and psychopathy.<sup id="cite_ref-19" class="reference"><a href="#cite_note-19"><span class="cite-bracket">&#91;</span>19<span class="cite-bracket">&#93;</span></a></sup> </p> <style data-mw-deduplicate="TemplateStyles:r886046785">.mw-parser-output .toclimit-2 .toclevel-1 ul,.mw-parser-output .toclimit-3 .toclevel-2 ul,.mw-parser-output .toclimit-4 .toclevel-3 ul,.mw-parser-output .toclimit-5 .toclevel-4 ul,.mw-parser-output .toclimit-6 .toclevel-5 ul,.mw-parser-output .toclimit-7 .toclevel-6 ul{display:none}</style><div class="toclimit-3"><meta property="mw:PageProp/toc" /></div> <div class="mw-heading mw-heading2"><h2 id="Signs_and_symptoms">Signs and symptoms</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Psychopathy&amp;action=edit&amp;section=1" title="Edit section: Signs and symptoms"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Socially, psychopathy typically involves extensive callous and manipulative self-serving behaviors with no regard for others, and often is associated with repeated delinquency, crime and violence. Mentally, impairments in processes related to <a href="/wiki/Affect_(psychology)" title="Affect (psychology)">affect</a> and <a href="/wiki/Cognition" title="Cognition">cognition</a>, particularly socially related mental processes, have also been found. Developmentally, symptoms of psychopathy have been identified in young children with <a href="/wiki/Conduct_disorder" title="Conduct disorder">conduct disorder</a>, and suggests at least a partial constitutional factor that influences its development.<sup id="cite_ref-:0_20-0" class="reference"><a href="#cite_note-:0-20"><span class="cite-bracket">&#91;</span>20<span class="cite-bracket">&#93;</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Primary_features">Primary features</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Psychopathy&amp;action=edit&amp;section=2" title="Edit section: Primary features"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Disagreement exists over which features should be considered as part of psychopathy, with researchers identifying around 40 traits supposedly indicative of the construct,<sup id="cite_ref-:3_21-0" class="reference"><a href="#cite_note-:3-21"><span class="cite-bracket">&#91;</span>21<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-:4_22-0" class="reference"><a href="#cite_note-:4-22"><span class="cite-bracket">&#91;</span>22<span class="cite-bracket">&#93;</span></a></sup> though the following characteristics are almost universally considered central. </p> <div class="mw-heading mw-heading4"><h4 id="Core_traits">Core traits</h4><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Psychopathy&amp;action=edit&amp;section=3" title="Edit section: Core traits"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Cooke and Michie (2001)<sup id="cite_ref-:5_23-0" class="reference"><a href="#cite_note-:5-23"><span class="cite-bracket">&#91;</span>23<span class="cite-bracket">&#93;</span></a></sup> proposed a three-factor model of the Psychopathy Checklist-Revised which has seen widespread application in other measures (e.g., Youth Psychopathic Traits Inventory,<sup id="cite_ref-:6_24-0" class="reference"><a href="#cite_note-:6-24"><span class="cite-bracket">&#91;</span>24<span class="cite-bracket">&#93;</span></a></sup> Antisocial Process Screening Device<sup id="cite_ref-:7_25-0" class="reference"><a href="#cite_note-:7-25"><span class="cite-bracket">&#91;</span>25<span class="cite-bracket">&#93;</span></a></sup>). </p> <ul><li><i>Arrogant and deceitful interpersonal style</i>: impression management or superficial charm, inflated and grandiose sense of self-worth, pathological lying/deceit, and manipulation for personal gain.</li> <li><i>Deficient affective experience</i>: lack of remorse or guilt, shallow affect (coldness and unemotionality), callousness and lack of empathy, and failure to accept responsibility for own actions.</li> <li><i>Impulsive and irresponsible lifestyle</i>: impulsivity, sensation-seeking and risk-taking, irresponsible and unreliable behavior, financially parasitic lifestyle and lack of realistic, long-term goals.</li></ul> <div class="mw-heading mw-heading4"><h4 id="Low_anxiety_and_fearlessness">Low anxiety and fearlessness</h4><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Psychopathy&amp;action=edit&amp;section=4" title="Edit section: Low anxiety and fearlessness"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Cleckley's (1941) original description of psychopathy included the absence of nervousness and neurotic disorders, and later theorists referred to psychopaths as fearless or thick-skinned.<sup id="cite_ref-:8_26-0" class="reference"><a href="#cite_note-:8-26"><span class="cite-bracket">&#91;</span>26<span class="cite-bracket">&#93;</span></a></sup> While it is often claimed that the PCL-R does not include low anxiety or fearlessness, such features do contribute to the scoring of the Facet 1 (interpersonal) items, mainly through self-assurance, unrealistic optimism, brazenness and imperturbability.<sup id="cite_ref-:9_27-0" class="reference"><a href="#cite_note-:9-27"><span class="cite-bracket">&#91;</span>27<span class="cite-bracket">&#93;</span></a></sup> Indeed, while self-report studies have been inconsistent using the two-factor model of the PCL-R, studies which separate Factor 1 into interpersonal and affective facets, more regularly show modest associations between Facet 1 and low anxiety, boldness and fearless dominance (especially items assessing glibness/charm and grandiosity).<sup id="cite_ref-:10_28-0" class="reference"><a href="#cite_note-:10-28"><span class="cite-bracket">&#91;</span>28<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-:11_29-0" class="reference"><a href="#cite_note-:11-29"><span class="cite-bracket">&#91;</span>29<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-:12_30-0" class="reference"><a href="#cite_note-:12-30"><span class="cite-bracket">&#91;</span>30<span class="cite-bracket">&#93;</span></a></sup> When both psychopathy and low anxiety/boldness are measured using interviews, both interpersonal and affective facets are both associated with fearlessness and lack of internalizing disorders.<sup id="cite_ref-:13_31-0" class="reference"><a href="#cite_note-:13-31"><span class="cite-bracket">&#91;</span>31<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-:14_32-0" class="reference"><a href="#cite_note-:14-32"><span class="cite-bracket">&#91;</span>32<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-:15_33-0" class="reference"><a href="#cite_note-:15-33"><span class="cite-bracket">&#91;</span>33<span class="cite-bracket">&#93;</span></a></sup> </p><p>The importance of low anxiety/fearlessness to psychopathy has historically been underscored through behavioral and physiological studies showing diminished responses to threatening stimuli (interpersonal and affective facets both contributing).<sup id="cite_ref-:16_34-0" class="reference"><a href="#cite_note-:16-34"><span class="cite-bracket">&#91;</span>34<span class="cite-bracket">&#93;</span></a></sup> However, it is not known whether this is reflected in reduced experience of state fear or where it reflects impaired detection and response to threat-related stimuli.<sup id="cite_ref-:17_35-0" class="reference"><a href="#cite_note-:17-35"><span class="cite-bracket">&#91;</span>35<span class="cite-bracket">&#93;</span></a></sup> Moreover, such deficits in threat responding are known to be reduced or even abolished when attention is focused on the threatening stimuli. </p> <div class="mw-heading mw-heading3"><h3 id="Offending">Offending</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Psychopathy&amp;action=edit&amp;section=5" title="Edit section: Offending"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading4"><h4 id="Criminality">Criminality</h4><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Psychopathy&amp;action=edit&amp;section=6" title="Edit section: Criminality"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Inmates_Orleans_Parish_Prison.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/5/57/Inmates_Orleans_Parish_Prison.jpg/220px-Inmates_Orleans_Parish_Prison.jpg" decoding="async" width="220" height="165" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/57/Inmates_Orleans_Parish_Prison.jpg/330px-Inmates_Orleans_Parish_Prison.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/57/Inmates_Orleans_Parish_Prison.jpg/440px-Inmates_Orleans_Parish_Prison.jpg 2x" data-file-width="2640" data-file-height="1980" /></a><figcaption>Psychopathy is strongly <a href="/wiki/Correlates_of_crime" title="Correlates of crime">correlated with crime</a>, violence, and antisocial behavior.</figcaption></figure> <p>In terms of simple correlations, the PCL-R manual states an average score of 22.1 has been found in North American prisoner samples, and that 20.5% scored 30 or higher. An analysis of prisoner samples from outside North America found a somewhat lower average value of 17.5. Studies have found that psychopathy scores correlated with repeated imprisonment, detention in higher security, disciplinary infractions, and substance misuse.<sup id="cite_ref-Patrick2005a_36-0" class="reference"><a href="#cite_note-Patrick2005a-36"><span class="cite-bracket">&#91;</span>36<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-englandandwales2009_37-0" class="reference"><a href="#cite_note-englandandwales2009-37"><span class="cite-bracket">&#91;</span>37<span class="cite-bracket">&#93;</span></a></sup> </p><p>Psychopathy, as measured with the PCL-R in institutional settings, shows in <a href="/wiki/Meta-analysis" title="Meta-analysis">meta-analyses</a> small to moderate <a href="/wiki/Effect_size" title="Effect size">effect sizes</a> with institutional misbehavior, postrelease crime, or postrelease violent crime with similar effects for the three outcomes. Individual studies give similar results for adult offenders, forensic psychiatric samples, community samples, and youth. The PCL-R is poorer at predicting sexual re-offending. This small to moderate effect appears to be due largely to the scale items that assess impulsive behaviors and past criminal history, which are well-established but very general risk factors. The aspects of core personality often held to be distinctively psychopathic generally show little or no predictive link to crime by themselves. For example, Factor 1 of the PCL-R and Fearless dominance of the PPI-R have smaller or no relationship to crime, including violent crime. In contrast, Factor 2 and Impulsive antisociality of the PPI-R are associated more strongly with criminality. Factor 2 has a relationship of similar strength to that of the PCL-R as a whole. The antisocial facet of the PCL-R is still predictive of future violence after controlling for past criminal behavior which, together with results regarding the PPI-R which by design does not include past criminal behavior, suggests that impulsive behaviors is an independent risk factor. Thus, the concept of psychopathy may perform poorly when attempted to be used as a general theory of crime.<sup id="cite_ref-gap_11-2" class="reference"><a href="#cite_note-gap-11"><span class="cite-bracket">&#91;</span>11<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-38" class="reference"><a href="#cite_note-38"><span class="cite-bracket">&#91;</span>38<span class="cite-bracket">&#93;</span></a></sup> </p> <div class="mw-heading mw-heading4"><h4 id="Violence">Violence</h4><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Psychopathy&amp;action=edit&amp;section=7" title="Edit section: Violence"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Studies have suggested a strong correlation between psychopathy scores and <a href="/wiki/Violence" title="Violence">violence</a>, and the PCL-R emphasizes features that are somewhat predictive of violent behavior. Researchers, however, have noted that psychopathy is dissociable from and not synonymous with violence.<sup id="cite_ref-gap_11-3" class="reference"><a href="#cite_note-gap-11"><span class="cite-bracket">&#91;</span>11<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-neumann1_39-0" class="reference"><a href="#cite_note-neumann1-39"><span class="cite-bracket">&#91;</span>39<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-40" class="reference"><a href="#cite_note-40"><span class="cite-bracket">&#91;</span>40<span class="cite-bracket">&#93;</span></a></sup> </p><p>It has been suggested that psychopathy is associated with "instrumental aggression", also known as predatory, proactive, or "cold blooded" aggression, a form of aggression characterized by reduced emotion and conducted with a goal differing from but facilitated by the commission of harm.<sup id="cite_ref-41" class="reference"><a href="#cite_note-41"><span class="cite-bracket">&#91;</span>41<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-Walsh2010_42-0" class="reference"><a href="#cite_note-Walsh2010-42"><span class="cite-bracket">&#91;</span>42<span class="cite-bracket">&#93;</span></a></sup> One conclusion in this regard was made by a 2002 study of homicide offenders, which reported that the homicides committed by homicidal offenders with psychopathy were almost always (93.3%) primarily instrumental, significantly more than the proportion (48.4%) of those committed by non-psychopathic homicidal offenders, with the instrumentality of the homicide also correlated with the total PCL-R score of the offender as well as their scores on the Factor 1 "interpersonal-affective" dimension. However, contrary to the equating of this to mean exclusively "in cold blood", more than a third of the homicides committed by psychopathic offenders involved some component of emotional reactivity as well.<sup id="cite_ref-Woodworth_43-0" class="reference"><a href="#cite_note-Woodworth-43"><span class="cite-bracket">&#91;</span>43<span class="cite-bracket">&#93;</span></a></sup> In any case, FBI profilers indicate that serious victim injury is generally an emotional offense, and some research supports this, at least with regard to sexual offending. One study has found more serious offending by non-psychopathic offenders on average than by offenders with psychopathy (e.g. more homicides versus more armed robbery and property offenses) and another that the Affective facet of the PCL-R predicted reduced offense seriousness.<sup id="cite_ref-gap_11-4" class="reference"><a href="#cite_note-gap-11"><span class="cite-bracket">&#91;</span>11<span class="cite-bracket">&#93;</span></a></sup> </p><p>Studies on perpetrators of <a href="/wiki/Domestic_violence" title="Domestic violence">domestic violence</a> find that abusers have high rates of psychopathy, with the prevalence estimated to be at around 15-30%. Furthermore, the commission of domestic violence is correlated with Factor 1 of the <a href="/wiki/Psychopathy_Checklist" title="Psychopathy Checklist">PCL-R</a>, which describes the emotional deficits and the callous and exploitative interpersonal style found in psychopathy. The prevalence of psychopathy among domestic abusers indicate that the core characteristics of psychopathy, such as callousness, remorselessness, and a lack of close interpersonal bonds, predispose those with psychopathy to committing domestic abuse, and suggest that the domestic abuses committed by these individuals are callously perpetrated (i.e. instrumentally aggressive) rather than a case of emotional <a href="/wiki/Aggression" title="Aggression">aggression</a> and therefore may not be amenable to the types of <a href="/wiki/Psychosocial" title="Psychosocial">psychosocial</a> interventions commonly given to domestic abuse perpetrators.<sup id="cite_ref-Walsh2010_42-1" class="reference"><a href="#cite_note-Walsh2010-42"><span class="cite-bracket">&#91;</span>42<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-44" class="reference"><a href="#cite_note-44"><span class="cite-bracket">&#91;</span>44<span class="cite-bracket">&#93;</span></a></sup> </p><p>Some clinicians suggest that assessment of the <a href="/wiki/Construct_(philosophy_of_science)" class="mw-redirect" title="Construct (philosophy of science)">construct</a> of psychopathy does not necessarily add value to violence <a href="/wiki/Risk_assessment" title="Risk assessment">risk assessment</a>. A large systematic review and meta-regression found that the PCL performed the poorest out of nine tools for <a href="/wiki/Predictive_validity" title="Predictive validity">predicting</a> violence. In addition, studies conducted by the authors or translators of violence prediction measures, including the PCL, show on average more positive results than those conducted by more independent investigators. There are several other risk assessment instruments which can predict further crime with an accuracy similar to the PCL-R and some of these are considerably easier, quicker, and less expensive to administer. This may even be done automatically by a computer simply based on data such as age, gender, number of previous convictions and age of first conviction. Some of these assessments may also identify treatment change and goals, identify quick changes that may help short-term management, identify more specific kinds of violence that may be at risk, and may have established specific probabilities of offending for specific scores. Nonetheless, the PCL-R may continue to be popular for risk assessment because of its pioneering role and the large amount of research done using it.<sup id="cite_ref-gap_11-5" class="reference"><a href="#cite_note-gap-11"><span class="cite-bracket">&#91;</span>11<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-45" class="reference"><a href="#cite_note-45"><span class="cite-bracket">&#91;</span>45<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-Mills_et._al_46-0" class="reference"><a href="#cite_note-Mills_et._al-46"><span class="cite-bracket">&#91;</span>46<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-47" class="reference"><a href="#cite_note-47"><span class="cite-bracket">&#91;</span>47<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-Psychol_48-0" class="reference"><a href="#cite_note-Psychol-48"><span class="cite-bracket">&#91;</span>48<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-49" class="reference"><a href="#cite_note-49"><span class="cite-bracket">&#91;</span>49<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-50" class="reference"><a href="#cite_note-50"><span class="cite-bracket">&#91;</span>50<span class="cite-bracket">&#93;</span></a></sup> </p><p>The U.S. <a href="/wiki/Federal_Bureau_of_Investigation" title="Federal Bureau of Investigation">Federal Bureau of Investigation</a> (FBI) reports that psychopathic behavior is consistent with traits common to some <a href="/wiki/Serial_killer" title="Serial killer">serial killers</a>, including sensation seeking, a lack of <a href="/wiki/Remorse" title="Remorse">remorse</a> or <a href="/wiki/Guilt_(emotion)" title="Guilt (emotion)">guilt</a>, <a href="/wiki/Impulsivity" title="Impulsivity">impulsivity</a>, the <a href="/wiki/Abusive_power_and_control" class="mw-redirect" title="Abusive power and control">need for control</a>, and predatory behavior.<sup id="cite_ref-fbi.gov_51-0" class="reference"><a href="#cite_note-fbi.gov-51"><span class="cite-bracket">&#91;</span>51<span class="cite-bracket">&#93;</span></a></sup> It has also been found that the homicide victims of psychopathic offenders were disproportionately female in comparison to the more equitable gender distribution of victims of non-psychopathic offenders.<sup id="cite_ref-Woodworth_43-1" class="reference"><a href="#cite_note-Woodworth-43"><span class="cite-bracket">&#91;</span>43<span class="cite-bracket">&#93;</span></a></sup> </p> <div class="mw-heading mw-heading4"><h4 id="Sexual_offending">Sexual offending</h4><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Psychopathy&amp;action=edit&amp;section=8" title="Edit section: Sexual offending"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Psychopathy has been associated with commission of <a href="/wiki/Sexual_crime" class="mw-redirect" title="Sexual crime">sexual crime</a>, with some researchers arguing that it is correlated with a preference for violent sexual behavior. A 2011 study of conditional releases for Canadian male federal offenders found that psychopathy was related to more violent and non-violent offences but not more sexual offences.<sup id="cite_ref-52" class="reference"><a href="#cite_note-52"><span class="cite-bracket">&#91;</span>52<span class="cite-bracket">&#93;</span></a></sup> For <a href="/wiki/Child_sexual_abuse" title="Child sexual abuse">child molesters</a>, psychopathy was associated with more offences.<sup id="cite_ref-Porter2009_53-0" class="reference"><a href="#cite_note-Porter2009-53"><span class="cite-bracket">&#91;</span>53<span class="cite-bracket">&#93;</span></a></sup> A study on the relationship between psychopathy scores and types of aggression in a sample of sexual murderers, in which 84.2% of the sample had PCL-R scores above 20 and 47.4% above 30, found that 82.4% of those with scores above 30 had engaged in <a href="/wiki/Sadistic_personality_disorder" title="Sadistic personality disorder">sadistic</a> violence (defined as enjoyment indicated by self-report or evidence) compared to 52.6% of those with scores below 30, and total PCL-R and Factor 1 scores correlated significantly with sadistic violence.<sup id="cite_ref-54" class="reference"><a href="#cite_note-54"><span class="cite-bracket">&#91;</span>54<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-55" class="reference"><a href="#cite_note-55"><span class="cite-bracket">&#91;</span>55<span class="cite-bracket">&#93;</span></a></sup> Despite this, it is reported that offenders with psychopathy (both sexual and non-sexual offenders) are about 2.5 times more likely to be granted conditional release compared to non-psychopathic offenders.<sup id="cite_ref-Porter2009_53-1" class="reference"><a href="#cite_note-Porter2009-53"><span class="cite-bracket">&#91;</span>53<span class="cite-bracket">&#93;</span></a></sup> </p><p>Hildebrand and colleagues (2004) have uncovered an interaction between psychopathy and <a href="/wiki/Paraphilia" title="Paraphilia">deviant sexual interests</a>, wherein those high in psychopathy who also endorsed deviant sexual interests were more likely to recidivate sexually.<sup id="cite_ref-56" class="reference"><a href="#cite_note-56"><span class="cite-bracket">&#91;</span>56<span class="cite-bracket">&#93;</span></a></sup> A subsequent <a href="/wiki/Meta-analysis" title="Meta-analysis">meta-analysis</a> has consolidated such a result.<sup id="cite_ref-57" class="reference"><a href="#cite_note-57"><span class="cite-bracket">&#91;</span>57<span class="cite-bracket">&#93;</span></a></sup> </p><p>In considering the issue of possible reunification of some <a href="/wiki/Sex_offenders" class="mw-redirect" title="Sex offenders">sex offenders</a> into homes with a non-offending parent and children, it has been advised that any sex offender with a significant criminal history should be assessed on the PCL-R, and if they score 18 or higher, then they should be excluded from any consideration of being placed in a home with children under any circumstances.<sup id="cite_ref-58" class="reference"><a href="#cite_note-58"><span class="cite-bracket">&#91;</span>58<span class="cite-bracket">&#93;</span></a></sup> There is, however, increasing concern that PCL scores are too inconsistent between different examiners, including in its use to evaluate sex offenders.<sup id="cite_ref-59" class="reference"><a href="#cite_note-59"><span class="cite-bracket">&#91;</span>59<span class="cite-bracket">&#93;</span></a></sup> </p> <div class="mw-heading mw-heading4"><h4 id="Other_offending">Other offending</h4><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Psychopathy&amp;action=edit&amp;section=9" title="Edit section: Other offending"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236090951"><div role="note" class="hatnote navigation-not-searchable">See also: <a href="#In_the_workplace">§&#160;In the workplace</a></div> <p>The possibility of psychopathy has been associated with <a href="/wiki/Organized_crime" title="Organized crime">organized crime</a>, <a href="/wiki/Economic_crime" class="mw-redirect" title="Economic crime">economic crime</a> and <a href="/wiki/War_crime" title="War crime">war crimes</a>. <a href="/wiki/Terrorists" class="mw-redirect" title="Terrorists">Terrorists</a> are sometimes considered psychopathic, and comparisons may be drawn with traits such as antisocial violence, a selfish world view that precludes the welfare of others, a lack of remorse or guilt, and <a href="/wiki/Blame" title="Blame">blame</a> externalization.<sup id="cite_ref-60" class="reference"><a href="#cite_note-60"><span class="cite-bracket">&#91;</span>60<span class="cite-bracket">&#93;</span></a></sup> However, John Horgan, author of <i>The Psychology of Terrorism</i>, argues that such comparisons could also then be drawn more widely: for example, to soldiers in wars. Coordinated terrorist activity requires organization, loyalty and <a href="/wiki/Ideology" title="Ideology">ideological</a> fanaticism often to the extreme of sacrificing oneself for an ideological cause. Traits such as a self-centered disposition, unreliability, poor behavioral controls, and unusual behaviors may disadvantage or preclude psychopathic individuals in conducting organized terrorism.<sup id="cite_ref-61" class="reference"><a href="#cite_note-61"><span class="cite-bracket">&#91;</span>61<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-62" class="reference"><a href="#cite_note-62"><span class="cite-bracket">&#91;</span>62<span class="cite-bracket">&#93;</span></a></sup> </p><p>It may be that a significant portion of people with psychopathy are socially successful and tend to express their antisocial behavior through more covert avenues such as social manipulation or <a href="/wiki/White_collar_crime" class="mw-redirect" title="White collar crime">white collar crime</a>. Such individuals are sometimes referred to as "successful psychopaths", and may not necessarily always have extensive histories of traditional antisocial behavior as characteristic of traditional psychopathy.<sup id="cite_ref-Successful_and_unsuccessful_63-0" class="reference"><a href="#cite_note-Successful_and_unsuccessful-63"><span class="cite-bracket">&#91;</span>63<span class="cite-bracket">&#93;</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Childhood_and_adolescent_precursors">Childhood and adolescent precursors</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Psychopathy&amp;action=edit&amp;section=10" title="Edit section: Childhood and adolescent precursors"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The PCL:YV is an adaptation of the PCL-R for individuals aged 13–18 years. It is, like the PCL-R, done by a trained rater based on an interview and an examination of criminal and other records. The "Antisocial Process Screening Device" (APSD) is also an adaptation of the PCL-R. It can be administered by parents or teachers for individuals aged 6–13 years. High psychopathy scores for both juveniles (as measured with these instruments) and adults (as measured with the PCL-R and other measurement tools) have similar associations with other variables, including similar ability in predicting violence and criminality.<sup id="cite_ref-gap_11-6" class="reference"><a href="#cite_note-gap-11"><span class="cite-bracket">&#91;</span>11<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-hare_scale_pclyv_64-0" class="reference"><a href="#cite_note-hare_scale_pclyv-64"><span class="cite-bracket">&#91;</span>64<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-hare_scale_apsd_65-0" class="reference"><a href="#cite_note-hare_scale_apsd-65"><span class="cite-bracket">&#91;</span>65<span class="cite-bracket">&#93;</span></a></sup> Juvenile psychopathy may also be associated with more negative emotionality such as anger, hostility, anxiety, and depression.<sup id="cite_ref-gap_11-7" class="reference"><a href="#cite_note-gap-11"><span class="cite-bracket">&#91;</span>11<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-66" class="reference"><a href="#cite_note-66"><span class="cite-bracket">&#91;</span>66<span class="cite-bracket">&#93;</span></a></sup> Psychopathic traits in youth typically comprise three factors: callous/unemotional, narcissism, and impulsivity/irresponsibility.<sup id="cite_ref-67" class="reference"><a href="#cite_note-67"><span class="cite-bracket">&#91;</span>67<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-68" class="reference"><a href="#cite_note-68"><span class="cite-bracket">&#91;</span>68<span class="cite-bracket">&#93;</span></a></sup> </p><p>There is positive correlation between early negative life events of the ages 0–4 and the emotion-based aspects of psychopathy.<sup id="cite_ref-:2_69-0" class="reference"><a href="#cite_note-:2-69"><span class="cite-bracket">&#91;</span>69<span class="cite-bracket">&#93;</span></a></sup> There are moderate to high correlations between psychopathy rankings from late childhood to early adolescence. The correlations are considerably lower from early- or mid-adolescence to adulthood. In one study most of the similarities were on the Impulsive- and Antisocial-Behavior scales. Of those adolescents who scored in the top 5% highest psychopathy scores at age 13, less than one third (29%) were classified as psychopathic at age 24. Some recent studies have also found poorer ability at predicting long-term, adult offending.<sup id="cite_ref-gap_11-8" class="reference"><a href="#cite_note-gap-11"><span class="cite-bracket">&#91;</span>11<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-70" class="reference"><a href="#cite_note-70"><span class="cite-bracket">&#91;</span>70<span class="cite-bracket">&#93;</span></a></sup> </p> <div class="mw-heading mw-heading4"><h4 id="Conduct_disorder">Conduct disorder</h4><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Psychopathy&amp;action=edit&amp;section=11" title="Edit section: Conduct disorder"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236090951"><div role="note" class="hatnote navigation-not-searchable">Main article: <a href="/wiki/Conduct_disorder" title="Conduct disorder">Conduct disorder</a></div> <p>Conduct disorder is diagnosed based on a prolonged pattern of antisocial behavior in childhood and/or adolescence, and may be seen as a precursor to ASPD. Some researchers have speculated that there are two subtypes of conduct disorder which mark dual developmental pathways to adult psy&#173;chopa&#173;thy.<sup id="cite_ref-gap_11-9" class="reference"><a href="#cite_note-gap-11"><span class="cite-bracket">&#91;</span>11<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-Hinshaw_71-0" class="reference"><a href="#cite_note-Hinshaw-71"><span class="cite-bracket">&#91;</span>71<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-72" class="reference"><a href="#cite_note-72"><span class="cite-bracket">&#91;</span>72<span class="cite-bracket">&#93;</span></a></sup> The DSM allows differentiating between childhood onset before age 10 and adolescent onset at age 10 and later. Childhood onset is argued to be more due to a personality disorder caused by neurological deficits interacting with an adverse environment. For many, but not all, childhood onset is associated with what is in <a href="/wiki/Terrie_Moffitt%27s_developmental_theory_of_crime" class="mw-redirect" title="Terrie Moffitt&#39;s developmental theory of crime">Terrie Moffitt's developmental theory of crime</a> referred to as "life-course- persistent" antisocial behavior as well as poorer health and economic status. Adolescent onset is argued to more typically be associated with short-term antisocial behavior.<sup id="cite_ref-gap_11-10" class="reference"><a href="#cite_note-gap-11"><span class="cite-bracket">&#91;</span>11<span class="cite-bracket">&#93;</span></a></sup> </p><p>It has been suggested that the combination of early-onset conduct disorder and <a href="/wiki/ADHD" class="mw-redirect" title="ADHD">ADHD</a> may be associated with life-course-persistent antisocial behaviors as well as psychopathy. There is evidence that this combination is more aggressive and antisocial than those with conduct disorder alone. However, it is not a particularly distinct group since the vast majority of young children with conduct disorder also have ADHD. Some evidence indicates that this group has deficits in behavioral inhibition, similar to that of adults with psychopathy. They may not be more likely than those with conduct disorder alone to have the interpersonal/affective features and the deficits in emotional processing characteristic of adults with psychopathy. Proponents of different types/dimensions of psychopathy have seen this type as possibly corresponding to adult secondary psychopathy and increased disinhibition in the triarchic model.<sup id="cite_ref-gap_11-11" class="reference"><a href="#cite_note-gap-11"><span class="cite-bracket">&#91;</span>11<span class="cite-bracket">&#93;</span></a></sup> </p><p>The <a href="/wiki/DSM-5" title="DSM-5">DSM-5</a> includes a specifier for those with conduct disorder who also display a <a href="/wiki/Callous_and_unemotional_traits" title="Callous and unemotional traits">callous, unemotional interpersonal style</a> across multiple settings and relationships.<sup id="cite_ref-:2_69-1" class="reference"><a href="#cite_note-:2-69"><span class="cite-bracket">&#91;</span>69<span class="cite-bracket">&#93;</span></a></sup> The specifier is based on research which suggests that those with conduct disorder who also meet criteria for the specifier tend to have a more severe form of the disorder with an earlier onset as well as a different response to treatment. Proponents of different types/dimensions of psychopathy have seen this as possibly corresponding to adult primary psychopathy and increased boldness and/or meanness in the triarchic model.<sup id="cite_ref-gap_11-12" class="reference"><a href="#cite_note-gap-11"><span class="cite-bracket">&#91;</span>11<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-dsm-5_cd_changes_73-0" class="reference"><a href="#cite_note-dsm-5_cd_changes-73"><span class="cite-bracket">&#91;</span>73<span class="cite-bracket">&#93;</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Mental_traits">Mental traits</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Psychopathy&amp;action=edit&amp;section=12" title="Edit section: Mental traits"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading4"><h4 id="Cognition">Cognition</h4><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Psychopathy&amp;action=edit&amp;section=13" title="Edit section: Cognition"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Dysfunctions in the <a href="/wiki/Prefrontal_cortex" title="Prefrontal cortex">prefrontal cortex</a> and <a href="/wiki/Amygdala" title="Amygdala">amygdala</a> regions of the brain have been associated with specific learning impairments in psychopathy. Damage to the ventromedial prefrontal cortex, which regulates the activity in the amygdala, leads to common characteristics in psychopathic individuals.<sup id="cite_ref-74" class="reference"><a href="#cite_note-74"><span class="cite-bracket">&#91;</span>74<span class="cite-bracket">&#93;</span></a></sup> Since the 1980s, scientists have linked <a href="/wiki/Traumatic_brain_injury" title="Traumatic brain injury">traumatic brain injury</a>, including damage to these regions, with violent and psychopathic behavior. Patients with damage in such areas resembled "psychopathic individuals" whose brains were incapable of acquiring social and moral knowledge; those who acquired damage as children may have trouble conceptualizing social or moral reasoning, while those with adult-acquired damage may be aware of proper social and moral conduct but be unable to behave appropriately. Dysfunctions in the amygdala and <a href="/wiki/Ventromedial_prefrontal_cortex" title="Ventromedial prefrontal cortex">ventromedial prefrontal cortex</a> may also impair <a href="/wiki/Reinforcement" title="Reinforcement">stimulus-reinforced learning</a> in psychopaths, whether punishment-based or reward-based. People scoring 25 or higher in the PCL-R, with an associated history of violent behavior, appear to have significantly reduced mean microstructural integrity in their <a href="/wiki/Uncinate_fasciculus" title="Uncinate fasciculus">uncinate fasciculus</a>—<a href="/wiki/White_matter" title="White matter">white matter</a> connecting the amygdala and <a href="/wiki/Orbitofrontal_cortex" title="Orbitofrontal cortex">orbitofrontal cortex</a>. There is evidence from <a href="/wiki/DT-MRI" class="mw-redirect" title="DT-MRI">DT-MRI</a> of breakdowns in the white matter connections between these two important areas.<sup id="cite_ref-Protect_–_Watch_Your_Head_75-0" class="reference"><a href="#cite_note-Protect_–_Watch_Your_Head-75"><span class="cite-bracket">&#91;</span>75<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-pmid18434283_76-0" class="reference"><a href="#cite_note-pmid18434283-76"><span class="cite-bracket">&#91;</span>76<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-pmid19506560_77-0" class="reference"><a href="#cite_note-pmid19506560-77"><span class="cite-bracket">&#91;</span>77<span class="cite-bracket">&#93;</span></a></sup> </p><p>Although some studies have suggested <a href="/wiki/Negative_relationship" title="Negative relationship">inverse relationships</a> between psychopathy and <a href="/wiki/Intelligence" title="Intelligence">intelligence</a>, including with regards to verbal IQ, Hare and Neumann state that a large literature demonstrates at most only a weak association between psychopathy and <a href="/wiki/IQ" class="mw-redirect" title="IQ">IQ</a>, noting that the early pioneer Cleckley included good intelligence in his checklist due to <a href="/wiki/Selection_bias" title="Selection bias">selection bias</a> (since many of his patients were "well educated and from middle-class or upper-class backgrounds") and that "there is no obvious theoretical reason why the disorder described by Cleckley or other clinicians should be related to intelligence; some psychopaths are bright, others less so". Studies also indicate that different aspects of the definition of psychopathy (e.g. interpersonal, affective (emotion), behavioral and lifestyle components) can show different links to intelligence, and the result can depend on the type of intelligence assessment (e.g. verbal, creative, practical, analytical).<sup id="cite_ref-LecterMyth_18-1" class="reference"><a href="#cite_note-LecterMyth-18"><span class="cite-bracket">&#91;</span>18<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-neumann1_39-1" class="reference"><a href="#cite_note-neumann1-39"><span class="cite-bracket">&#91;</span>39<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-HareNeumann2008_78-0" class="reference"><a href="#cite_note-HareNeumann2008-78"><span class="cite-bracket">&#91;</span>78<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-79" class="reference"><a href="#cite_note-79"><span class="cite-bracket">&#91;</span>79<span class="cite-bracket">&#93;</span></a></sup> </p> <div class="mw-heading mw-heading4"><h4 id="Emotion_recognition_and_empathy">Emotion recognition and empathy</h4><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Psychopathy&amp;action=edit&amp;section=14" title="Edit section: Emotion recognition and empathy"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>A large body of research suggests that psychopathy is associated with atypical responses to distress <a href="/wiki/Sensory_cue" title="Sensory cue">cues</a> from other people, more precisely an impaired emotional <a href="/wiki/Empathy" title="Empathy">empathy</a> in the recognition of, and response to, <a href="/wiki/Facial_expressions" class="mw-redirect" title="Facial expressions">facial expressions</a>, <a href="/wiki/Body_language" title="Body language">body gestures</a> and <a href="/wiki/Emotional_prosody" title="Emotional prosody">vocal tones</a> of <a href="/wiki/Fear" title="Fear">fear</a>, <a href="/wiki/Sadness" title="Sadness">sadness</a>, <a href="/wiki/Pain" title="Pain">pain</a> and <a href="/wiki/Happiness" title="Happiness">happiness</a>.<sup id="cite_ref-Blair2018_80-0" class="reference"><a href="#cite_note-Blair2018-80"><span class="cite-bracket">&#91;</span>80<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-:0_20-1" class="reference"><a href="#cite_note-:0-20"><span class="cite-bracket">&#91;</span>20<span class="cite-bracket">&#93;</span></a></sup> This impaired recognition and reduced autonomic responsiveness might be partly accounted for by a decreased activation of the <a href="/wiki/Fusiform_gyrus" title="Fusiform gyrus">fusiform</a> and <a href="/wiki/Extrastriate_cortex" title="Extrastriate cortex">extrastriate cortical</a> regions.<sup id="cite_ref-:0_20-2" class="reference"><a href="#cite_note-:0-20"><span class="cite-bracket">&#91;</span>20<span class="cite-bracket">&#93;</span></a></sup> The underlying biological surfaces for processing expressions of happiness are functionally intact in psychopaths, although less responsive than those of controls. The neuroimaging literature is unclear as to whether deficits are specific to particular emotions such as fear. The overall pattern of results across studies indicates that people diagnosed with psychopathy demonstrate reduced MRI, fMRI, aMRI, PET, and SPECT activity in areas of the brain.<sup id="cite_ref-81" class="reference"><a href="#cite_note-81"><span class="cite-bracket">&#91;</span>81<span class="cite-bracket">&#93;</span></a></sup> Research has also shown that an approximate 18% smaller amygdala size contributes to a significantly lower emotional sensation in regards to fear, sadness, amongst other negative emotions, which may likely be the reason as to why psychopathic individuals have lower empathy.<sup id="cite_ref-82" class="reference"><a href="#cite_note-82"><span class="cite-bracket">&#91;</span>82<span class="cite-bracket">&#93;</span></a></sup> Some recent fMRI studies have reported that emotion perception deficits in psychopathy are pervasive across emotions (positives and negatives).<sup id="cite_ref-83" class="reference"><a href="#cite_note-83"><span class="cite-bracket">&#91;</span>83<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-Kiehl2006_84-0" class="reference"><a href="#cite_note-Kiehl2006-84"><span class="cite-bracket">&#91;</span>84<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-Blair_1995_85-0" class="reference"><a href="#cite_note-Blair_1995-85"><span class="cite-bracket">&#91;</span>85<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-Blair2002_86-0" class="reference"><a href="#cite_note-Blair2002-86"><span class="cite-bracket">&#91;</span>86<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-Quinton_87-0" class="reference"><a href="#cite_note-Quinton-87"><span class="cite-bracket">&#91;</span>87<span class="cite-bracket">&#93;</span></a></sup> Studies on children with psychopathic tendencies have also shown such associations.<sup id="cite_ref-Quinton_87-1" class="reference"><a href="#cite_note-Quinton-87"><span class="cite-bracket">&#91;</span>87<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-Blair_2001a_88-0" class="reference"><a href="#cite_note-Blair_2001a-88"><span class="cite-bracket">&#91;</span>88<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-Blair_2002_89-0" class="reference"><a href="#cite_note-Blair_2002-89"><span class="cite-bracket">&#91;</span>89<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-Stevens_2001_90-0" class="reference"><a href="#cite_note-Stevens_2001-90"><span class="cite-bracket">&#91;</span>90<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-91" class="reference"><a href="#cite_note-91"><span class="cite-bracket">&#91;</span>91<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-Dawel_2012_92-0" class="reference"><a href="#cite_note-Dawel_2012-92"><span class="cite-bracket">&#91;</span>92<span class="cite-bracket">&#93;</span></a></sup> Meta-analyses have also found evidence of impairments in both vocal and facial emotional recognition for several emotions (i.e., not only fear and sadness) in both adults and children/adolescents.<sup id="cite_ref-Dawel_2012_92-1" class="reference"><a href="#cite_note-Dawel_2012-92"><span class="cite-bracket">&#91;</span>92<span class="cite-bracket">&#93;</span></a></sup> </p> <div class="mw-heading mw-heading4"><h4 id="Moral_judgment">Moral judgment</h4><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Psychopathy&amp;action=edit&amp;section=15" title="Edit section: Moral judgment"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Psychopathy has been associated with <a href="/wiki/Amorality" title="Amorality">amorality</a>—an absence of, indifference towards, or disregard for moral beliefs. There are few firm data on patterns of moral judgment. Studies of developmental level (sophistication) of moral reasoning found all possible results—lower, higher or the same as non-psychopaths. Studies that compared judgments of personal moral transgressions versus judgments of breaking conventional rules or laws found that psychopaths rated them as equally severe, whereas non-psychopaths rated the rule-breaking as less severe.<sup id="cite_ref-KoenigsKruepkeZeierNewman_93-0" class="reference"><a href="#cite_note-KoenigsKruepkeZeierNewman-93"><span class="cite-bracket">&#91;</span>93<span class="cite-bracket">&#93;</span></a></sup> </p><p>A study comparing judgments of whether personal or impersonal harm would be endorsed in order to achieve the rationally maximum (<a href="/wiki/Utilitarianism" title="Utilitarianism">utilitarian</a>) amount of welfare found no significant differences between subjects high and low in psychopathy. However, a further study using the same tests found that prisoners scoring high on the PCL were more likely to endorse impersonal harm or rule violations than non-psychopathic controls were. The psychopathic offenders who scored low in anxiety were also more willing to endorse personal harm on average.<sup id="cite_ref-KoenigsKruepkeZeierNewman_93-1" class="reference"><a href="#cite_note-KoenigsKruepkeZeierNewman-93"><span class="cite-bracket">&#91;</span>93<span class="cite-bracket">&#93;</span></a></sup> </p><p>Assessing accidents, where one person harmed another unintentionally, psychopaths judged such actions to be more morally permissible. This result has been considered a reflection of psychopaths' failure to appreciate the emotional aspect of the victim's harmful experience.<sup id="cite_ref-94" class="reference"><a href="#cite_note-94"><span class="cite-bracket">&#91;</span>94<span class="cite-bracket">&#93;</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="History">History</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Psychopathy&amp;action=edit&amp;section=16" title="Edit section: History"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236090951"><div role="note" class="hatnote navigation-not-searchable">Main article: <a href="/wiki/History_of_psychopathy" title="History of psychopathy">History of psychopathy</a></div> <div class="mw-heading mw-heading3"><h3 id="Etymology">Etymology</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Psychopathy&amp;action=edit&amp;section=17" title="Edit section: Etymology"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The word <i>psychopathy</i> is a joining of the <a href="/wiki/Ancient_Greek" title="Ancient Greek">Greek</a> words <i>psyche</i> (<span title="Greek-language text"><span lang="el">ψυχή</span></span>) "soul" and <i>pathos</i> (<span title="Greek-language text"><span lang="el">πάθος</span></span>) "suffering, feeling".<sup id="cite_ref-:12_30-1" class="reference"><a href="#cite_note-:12-30"><span class="cite-bracket">&#91;</span>30<span class="cite-bracket">&#93;</span></a></sup> The first documented use is from 1847 in <a href="/wiki/Germany" title="Germany">Germany</a> as <i>psychopatisch</i>,<sup id="cite_ref-95" class="reference"><a href="#cite_note-95"><span class="cite-bracket">&#91;</span>95<span class="cite-bracket">&#93;</span></a></sup> and the noun <i>psychopath</i> has been traced to 1885.<sup id="cite_ref-:13_31-1" class="reference"><a href="#cite_note-:13-31"><span class="cite-bracket">&#91;</span>31<span class="cite-bracket">&#93;</span></a></sup> In medicine, <i>patho-</i> has a more specific meaning of <a href="/wiki/Disease" title="Disease">disease</a> (Thus <i><a href="/wiki/Pathology" title="Pathology">pathology</a></i> has meant the study of disease since 1610, and <i><a href="/wiki/Psychopathology" title="Psychopathology">psychopathology</a></i> has meant the study of <a href="/wiki/Mental_disorder" title="Mental disorder">mental disorder</a> in general since 1847. A sense of "a subject of pathology, morbid, excessive" is attested from 1845,<sup id="cite_ref-:14_32-1" class="reference"><a href="#cite_note-:14-32"><span class="cite-bracket">&#91;</span>32<span class="cite-bracket">&#93;</span></a></sup> including the phrase <i><a href="/wiki/Pathological_liar" class="mw-redirect" title="Pathological liar">pathological liar</a></i> from 1891 in the medical literature). </p><p>The term <i>psychopathy</i> initially had a very general meaning referring to all sorts of mental disorders and social aberrations, popularised from 1891 in Germany by <a href="/wiki/Julius_Ludwig_August_Koch" title="Julius Ludwig August Koch">Koch's</a> concept of "psychopathic inferiority" (<span title="German-language text"><i lang="de">psychopathische Minderwertigkeiten</i></span>). Some medical dictionaries still define psychopathy in both a narrow and broad sense, such as <a href="/wiki/MedlinePlus" title="MedlinePlus">MedlinePlus</a> from the U.S. <a href="/wiki/National_Library_of_Medicine" class="mw-redirect" title="National Library of Medicine">National Library of Medicine</a>.<sup id="cite_ref-:15_33-1" class="reference"><a href="#cite_note-:15-33"><span class="cite-bracket">&#91;</span>33<span class="cite-bracket">&#93;</span></a></sup> On the other hand, <a href="/wiki/Stedman%27s_Medical_Dictionary" title="Stedman&#39;s Medical Dictionary">Stedman's Medical Dictionary</a> defines "psychopath" only as a "former designation" for a person with an antisocial type of personality disorder.<sup id="cite_ref-:16_34-1" class="reference"><a href="#cite_note-:16-34"><span class="cite-bracket">&#91;</span>34<span class="cite-bracket">&#93;</span></a></sup> </p><p>The term <i><a href="/wiki/Psychosis" title="Psychosis">psychosis</a></i> was also used in Germany from 1841, originally in a very general sense. The suffix -ωσις (-osis) meant in this case "abnormal condition". This term or its adjective <i>psychotic</i> would come to refer to the more severe mental disturbances and then specifically to mental states or disorders characterized by <a href="/wiki/Hallucinations" class="mw-redirect" title="Hallucinations">hallucinations</a>, <a href="/wiki/Delusions" class="mw-redirect" title="Delusions">delusions</a> or in some other sense markedly out of touch with <a href="/wiki/Reality" title="Reality">reality</a>.<sup id="cite_ref-Burgy_96-0" class="reference"><a href="#cite_note-Burgy-96"><span class="cite-bracket">&#91;</span>96<span class="cite-bracket">&#93;</span></a></sup> </p><p>The <a href="/wiki/Slang" title="Slang">slang</a> term <i><a href="https://en.wiktionary.org/wiki/psycho" class="extiw" title="wikt:psycho">psycho</a></i> has been traced to a shortening of the adjective <i>psychopathic</i> from 1936, and from 1942 as a shortening of the noun <i>psychopath</i>,<sup id="cite_ref-97" class="reference"><a href="#cite_note-97"><span class="cite-bracket">&#91;</span>97<span class="cite-bracket">&#93;</span></a></sup> but it is also used as shorthand for psychotic or crazed.<sup id="cite_ref-:18_98-0" class="reference"><a href="#cite_note-:18-98"><span class="cite-bracket">&#91;</span>98<span class="cite-bracket">&#93;</span></a></sup> </p><p>The media usually uses the term <i>psychopath</i> to designate any criminal whose offenses are particularly abhorrent and unnatural, but that is not its original or general psychiatric meaning.<sup id="cite_ref-lykken_99-0" class="reference"><a href="#cite_note-lykken-99"><span class="cite-bracket">&#91;</span>99<span class="cite-bracket">&#93;</span></a></sup> </p> <div class="mw-heading mw-heading4"><h4 id="Sociopathy">Sociopathy</h4><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Psychopathy&amp;action=edit&amp;section=18" title="Edit section: Sociopathy"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The word element <i>socio</i>- has been commonly used in compound words since around 1880.<sup id="cite_ref-sociopathy_100-0" class="reference"><a href="#cite_note-sociopathy-100"><span class="cite-bracket">&#91;</span>100<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-socio_101-0" class="reference"><a href="#cite_note-socio-101"><span class="cite-bracket">&#91;</span>101<span class="cite-bracket">&#93;</span></a></sup> The term <i>sociopathy</i> may have been first introduced in 1909 in Germany by biological psychiatrist <a href="/wiki/Karl_Birnbaum" title="Karl Birnbaum">Karl Birnbaum</a> and in 1930 in the US by educational psychologist <a href="/wiki/George_E._Partridge" title="George E. Partridge">George E. Partridge</a>, as an alternative to the concept of <i>psychopathy</i>.<sup id="cite_ref-sociopathy_100-1" class="reference"><a href="#cite_note-sociopathy-100"><span class="cite-bracket">&#91;</span>100<span class="cite-bracket">&#93;</span></a></sup> It was used to indicate that the defining feature is violation of <a href="/wiki/Social_norms" class="mw-redirect" title="Social norms">social norms</a>, or antisocial behavior, and may be social or biological in origin.<sup id="cite_ref-102" class="reference"><a href="#cite_note-102"><span class="cite-bracket">&#91;</span>102<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-:17_35-1" class="reference"><a href="#cite_note-:17-35"><span class="cite-bracket">&#91;</span>35<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-103" class="reference"><a href="#cite_note-103"><span class="cite-bracket">&#91;</span>103<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-104" class="reference"><a href="#cite_note-104"><span class="cite-bracket">&#91;</span>104<span class="cite-bracket">&#93;</span></a></sup> </p><p>The terms <i>sociopathy</i> and <i>psychopathy</i> were once used interchangeably in relation to <a href="/wiki/Antisocial_personality_disorder" title="Antisocial personality disorder">antisocial personality disorder</a>, though this usage is outdated in medicine and psychiatry.<sup id="cite_ref-105" class="reference"><a href="#cite_note-105"><span class="cite-bracket">&#91;</span>105<span class="cite-bracket">&#93;</span></a></sup> Psychopathy, however, is a highly popular construct in the psychology literature.<sup id="cite_ref-106" class="reference"><a href="#cite_note-106"><span class="cite-bracket">&#91;</span>106<span class="cite-bracket">&#93;</span></a></sup> Furthermore, the DSM-5 introduced the dimensional model of personality disorders in Section III, which includes a specifier for psychopathic traits.<sup id="cite_ref-107" class="reference"><a href="#cite_note-107"><span class="cite-bracket">&#91;</span>107<span class="cite-bracket">&#93;</span></a></sup> According to the DSM, psychopathy is not a standalone diagnosis, but the authors attempted to measure "psychopathic traits" via a specifier.<sup id="cite_ref-108" class="reference"><a href="#cite_note-108"><span class="cite-bracket">&#91;</span>108<span class="cite-bracket">&#93;</span></a></sup> In one study, the "Psychopathic Features Specifier" has been modeled on Factor 1 of the <a href="/wiki/Psychopathic_Personality_Inventory" title="Psychopathic Personality Inventory">Psychopathic Personality Inventory</a>, known as Fearless Dominance. To some, it is evidence of psychopathy not being a more extreme version of ASPD, but as an emergent compound trait that manifests when Antisocial Personality Disorder is present in combination with high levels of Fearless Dominance (or Boldness as it's known in the Triarchic Model).<sup id="cite_ref-109" class="reference"><a href="#cite_note-109"><span class="cite-bracket">&#91;</span>109<span class="cite-bracket">&#93;</span></a></sup> Analyses showed that this Section III ASPD greatly outperformed Section II ASPD in predicting scores on Hare’s (2003) Psychopathy Checklist-Revised.<sup id="cite_ref-110" class="reference"><a href="#cite_note-110"><span class="cite-bracket">&#91;</span>110<span class="cite-bracket">&#93;</span></a></sup> </p><p>Section III ASPD including the 'Psychopathic Traits Specifier' can be seen on page 765 of the DSM-5 or Page 885 of the DSM-5-TR.<sup id="cite_ref-111" class="reference"><a href="#cite_note-111"><span class="cite-bracket">&#91;</span>111<span class="cite-bracket">&#93;</span></a></sup> </p><p>The term is used in various ways in contemporary usage. <a href="/wiki/Robert_D._Hare" title="Robert D. Hare">Robert Hare</a> stated in the popular science book <i><a href="/wiki/Snakes_in_Suits" title="Snakes in Suits">Snakes in Suits</a></i> that <i>sociopathy</i> and <i>psychopathy</i> are often used interchangeably, but in some cases the term <i>sociopathy</i> is preferred because it is less likely than is <i>psychopathy</i> to be confused with <a href="/wiki/Psychosis" title="Psychosis">psychosis</a>, whereas in other cases the two terms may be used with different meanings that reflect the user's views on its origins and determinants. Hare contended that the term <i>sociopathy</i> is preferred by those who see the causes as due to social factors and early environment, and the term <i>psychopathy</i> is preferred by those who believe that there are psychological, biological, and genetic factors involved in addition to environmental factors.<sup id="cite_ref-Without_Conscience_6-1" class="reference"><a href="#cite_note-Without_Conscience-6"><span class="cite-bracket">&#91;</span>6<span class="cite-bracket">&#93;</span></a></sup> Hare also provides his own definitions: he describes psychopathy as lacking a sense of empathy or morality, but sociopathy as only differing from the average person in the sense of right and wrong.<sup id="cite_ref-112" class="reference"><a href="#cite_note-112"><span class="cite-bracket">&#91;</span>112<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-113" class="reference"><a href="#cite_note-113"><span class="cite-bracket">&#91;</span>113<span class="cite-bracket">&#93;</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Precursors">Precursors</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Psychopathy&amp;action=edit&amp;section=19" title="Edit section: Precursors"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p><a href="/wiki/Ancient_literature" title="Ancient literature">Ancient writings</a> that have been connected to psychopathic traits include <a href="/wiki/Book_of_Deuteronomy" title="Book of Deuteronomy">Deuteronomy</a> <a rel="nofollow" class="external text" href="https://mechon-mamre.org/p/pt/pt0521.htm#18">21:18–21</a> and a <a href="/wiki/Theophrastus#Characters" title="Theophrastus">description of an unscrupulous man</a> by the Greek philosopher <a href="/wiki/Theophrastus" title="Theophrastus">Theophrastus</a> around 300 BC.<sup id="cite_ref-:1_114-0" class="reference"><a href="#cite_note-:1-114"><span class="cite-bracket">&#91;</span>114<span class="cite-bracket">&#93;</span></a></sup> </p><p>The concept of psychopathy has been indirectly connected to the early 19th century work of <a href="/wiki/Philippe_Pinel" title="Philippe Pinel">Pinel</a> (1801; "mania without delirium") and <a href="/wiki/James_Cowles_Prichard" title="James Cowles Prichard">Pritchard</a> (1835; "<a href="/wiki/Moral_insanity" title="Moral insanity">moral insanity</a>"), although historians have largely discredited the idea of a direct equivalence.<sup id="cite_ref-115" class="reference"><a href="#cite_note-115"><span class="cite-bracket">&#91;</span>115<span class="cite-bracket">&#93;</span></a></sup> <i>Psychopathy</i> originally described any illness of the mind, but found its application to a narrow subset of mental conditions when it was used toward the end of the 19th century by the German psychiatrist <a href="/wiki/Julius_Ludwig_August_Koch" title="Julius Ludwig August Koch">Julius Koch</a> (1891) to describe various behavioral and moral dysfunction in the absence of an obvious mental illness or <a href="/wiki/Intellectual_disability" title="Intellectual disability">intellectual disability</a>. He applied the term <i>psychopathic inferiority</i> (<span title="German-language text"><i lang="de">psychopathischen Minderwertigkeiten</i></span>) to various chronic conditions and character disorders, and his work would influence the later conception of the personality disorder.<sup id="cite_ref-gap_11-13" class="reference"><a href="#cite_note-gap-11"><span class="cite-bracket">&#91;</span>11<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-116" class="reference"><a href="#cite_note-116"><span class="cite-bracket">&#91;</span>116<span class="cite-bracket">&#93;</span></a></sup> </p><p>The term <i>psychopathic</i> came to be used to describe a diverse range of dysfunctional or antisocial behavior and mental and sexual deviances, including at the time <a href="/wiki/Homosexuality" title="Homosexuality">homosexuality</a>. It was often used to imply an underlying "constitutional" or genetic origin. Disparate early descriptions likely set the stage for modern controversies about the definition of psychopathy.<sup id="cite_ref-gap_11-14" class="reference"><a href="#cite_note-gap-11"><span class="cite-bracket">&#91;</span>11<span class="cite-bracket">&#93;</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="20th_century">20th century</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Psychopathy&amp;action=edit&amp;section=20" title="Edit section: 20th century"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>An influential figure in shaping modern American conceptualizations of psychopathy was American psychiatrist <a href="/wiki/Hervey_Cleckley" class="mw-redirect" title="Hervey Cleckley">Hervey Cleckley</a>. In his classic monograph, <i><a href="/wiki/The_Mask_of_Sanity" title="The Mask of Sanity">The Mask of Sanity</a></i> (1941), Cleckley drew on a small series of vivid case studies of psychiatric patients at a <a href="/wiki/Veterans_Administration" class="mw-redirect" title="Veterans Administration">Veterans Administration</a> hospital in Georgia to provide a description for psychopathy. Cleckley used the metaphor of the "mask" to refer to the tendency of psychopaths to appear confident, personable, and well-adjusted compared to most psychiatric patients, while revealing underlying pathology through their actions over time. Cleckley formulated sixteen criteria for psychopathy.<sup id="cite_ref-gap_11-15" class="reference"><a href="#cite_note-gap-11"><span class="cite-bracket">&#91;</span>11<span class="cite-bracket">&#93;</span></a></sup> The Scottish psychiatrist <a href="/wiki/David_Henderson_(psychiatrist)" title="David Henderson (psychiatrist)">David Henderson</a> had also been influential in Europe from 1939 in narrowing the diagnosis.<sup id="cite_ref-117" class="reference"><a href="#cite_note-117"><span class="cite-bracket">&#91;</span>117<span class="cite-bracket">&#93;</span></a></sup> </p><p>The diagnostic category of <i>sociopathic personality</i> in early editions of the <i>Diagnostic and Statistical Manual</i> (DSM)<sup id="cite_ref-DSM-IV-TR_118-0" class="reference"><a href="#cite_note-DSM-IV-TR-118"><span class="cite-bracket">&#91;</span>118<span class="cite-bracket">&#93;</span></a></sup> had some key similarities to Cleckley's ideas, though in 1980 when renamed Antisocial Personality Disorder some of the underlying personality assumptions were removed.<sup id="cite_ref-Handbook_of_Psychopathy_13-2" class="reference"><a href="#cite_note-Handbook_of_Psychopathy-13"><span class="cite-bracket">&#91;</span>13<span class="cite-bracket">&#93;</span></a></sup> In 1980, Canadian psychologist Robert D. Hare introduced an alternative measure, the "<a href="/wiki/Psychopathy_Checklist" title="Psychopathy Checklist">Psychopathy Checklist</a>" (PCL) based largely on Cleckley's criteria, which was revised in 1991 (PCL-R),<sup id="cite_ref-pcl-r_119-0" class="reference"><a href="#cite_note-pcl-r-119"><span class="cite-bracket">&#91;</span>119<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-120" class="reference"><a href="#cite_note-120"><span class="cite-bracket">&#91;</span>120<span class="cite-bracket">&#93;</span></a></sup> and is the most widely used measure of psychopathy.<sup id="cite_ref-121" class="reference"><a href="#cite_note-121"><span class="cite-bracket">&#91;</span>121<span class="cite-bracket">&#93;</span></a></sup> There are also several <a href="/wiki/Self-report" class="mw-redirect" title="Self-report">self-report</a> tests, with the Psychopathic Personality Inventory (PPI) used more often among these in contemporary adult research.<sup id="cite_ref-gap_11-16" class="reference"><a href="#cite_note-gap-11"><span class="cite-bracket">&#91;</span>11<span class="cite-bracket">&#93;</span></a></sup> </p><p>Famous individuals have sometimes been diagnosed, albeit at a distance, as psychopaths. As one example out of many possible from history, in a 1972 version of a secret report originally prepared for the <a href="/wiki/Office_of_Strategic_Services" title="Office of Strategic Services">Office of Strategic Services</a> in 1943, and which may have been intended to be used as <a href="/wiki/Propaganda" title="Propaganda">propaganda</a>,<sup id="cite_ref-122" class="reference"><a href="#cite_note-122"><span class="cite-bracket">&#91;</span>122<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-Spark_123-0" class="reference"><a href="#cite_note-Spark-123"><span class="cite-bracket">&#91;</span>123<span class="cite-bracket">&#93;</span></a></sup> non-medical <a href="/wiki/Psychoanalyst" class="mw-redirect" title="Psychoanalyst">psychoanalyst</a> <a href="/wiki/Walter_Charles_Langer" title="Walter Charles Langer">Walter C. Langer</a> suggested <a href="/wiki/Adolf_Hitler" title="Adolf Hitler">Adolf Hitler</a> was <a href="/wiki/Psychopathography_of_Adolf_Hitler" title="Psychopathography of Adolf Hitler">probably a psychopath</a>.<sup id="cite_ref-psycho_124-0" class="reference"><a href="#cite_note-psycho-124"><span class="cite-bracket">&#91;</span>124<span class="cite-bracket">&#93;</span></a></sup> However, others have not drawn this conclusion; clinical forensic psychologist <a href="/wiki/Glenn_D._Walters" title="Glenn D. Walters">Glenn Walters</a> argues that Hitler's actions do not warrant a diagnosis of psychopathy as, although he showed several characteristics of criminality, he was not always egocentric, callously disregarding of feelings or lacking impulse control, and there is no proof he could not learn from mistakes.<sup id="cite_ref-125" class="reference"><a href="#cite_note-125"><span class="cite-bracket">&#91;</span>125<span class="cite-bracket">&#93;</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Definition">Definition</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Psychopathy&amp;action=edit&amp;section=21" title="Edit section: Definition"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading3"><h3 id="Concepts">Concepts</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Psychopathy&amp;action=edit&amp;section=22" title="Edit section: Concepts"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1224211176">.mw-parser-output .quotebox{background-color:#F9F9F9;border:1px solid #aaa;box-sizing:border-box;padding:10px;font-size:88%;max-width:100%}.mw-parser-output .quotebox.floatleft{margin:.5em 1.4em .8em 0}.mw-parser-output .quotebox.floatright{margin:.5em 0 .8em 1.4em}.mw-parser-output .quotebox.centered{overflow:hidden;position:relative;margin:.5em auto .8em auto}.mw-parser-output .quotebox.floatleft span,.mw-parser-output .quotebox.floatright span{font-style:inherit}.mw-parser-output .quotebox>blockquote{margin:0;padding:0;border-left:0;font-family:inherit;font-size:inherit}.mw-parser-output .quotebox-title{text-align:center;font-size:110%;font-weight:bold}.mw-parser-output .quotebox-quote>:first-child{margin-top:0}.mw-parser-output .quotebox-quote:last-child>:last-child{margin-bottom:0}.mw-parser-output .quotebox-quote.quoted:before{font-family:"Times New Roman",serif;font-weight:bold;font-size:large;color:gray;content:" “ ";vertical-align:-45%;line-height:0}.mw-parser-output .quotebox-quote.quoted:after{font-family:"Times New Roman",serif;font-weight:bold;font-size:large;color:gray;content:" ” ";line-height:0}.mw-parser-output .quotebox .left-aligned{text-align:left}.mw-parser-output .quotebox .right-aligned{text-align:right}.mw-parser-output .quotebox .center-aligned{text-align:center}.mw-parser-output .quotebox .quote-title,.mw-parser-output .quotebox .quotebox-quote{display:block}.mw-parser-output .quotebox cite{display:block;font-style:normal}@media screen and (max-width:640px){.mw-parser-output .quotebox{width:100%!important;margin:0 0 .8em!important;float:none!important}}</style><div class="quotebox pullquote floatright" style="width:30em; ;"> <blockquote class="quotebox-quote left-aligned" style=""> <p>Psychopaths are social predators who charm, manipulate, and ruthlessly plow their way through life, leaving a broad trail of broken hearts, shattered expectations, and empty wallets. Completely lacking in conscience and in feelings for others, they selfishly take what they want and do as they please, violating social norms and expectations without the slightest sense of guilt or regret. </p> </blockquote> <p style="padding-bottom: 0;"><cite class="right-aligned" style="">—<a href="/wiki/Robert_D._Hare" title="Robert D. Hare">Robert D. Hare</a>, 1993, p. xi<sup id="cite_ref-Conscience_126-0" class="reference"><a href="#cite_note-Conscience-126"><span class="cite-bracket">&#91;</span>126<span class="cite-bracket">&#93;</span></a></sup></cite></p> </div> <p>There are multiple conceptualizations of psychopathy,<sup id="cite_ref-gap_11-17" class="reference"><a href="#cite_note-gap-11"><span class="cite-bracket">&#91;</span>11<span class="cite-bracket">&#93;</span></a></sup> including <i>Cleckleyan psychopathy</i> (<a href="/wiki/Hervey_Cleckley" class="mw-redirect" title="Hervey Cleckley">Hervey Cleckley</a>'s conception entailing bold, disinhibited behavior, and "feckless disregard") and <i>criminal psychopathy</i> (a meaner, more aggressive and disinhibited conception explicitly entailing persistent and sometimes serious criminal behavior). The latter conceptualization is typically used as the modern clinical concept and assessed by the Psychopathy Checklist.<sup id="cite_ref-gap_11-18" class="reference"><a href="#cite_note-gap-11"><span class="cite-bracket">&#91;</span>11<span class="cite-bracket">&#93;</span></a></sup> The label "psychopath" may have implications and stigma related to decisions about punishment severity for criminal acts, medical treatment, civil commitments, etc. Efforts have therefore been made to clarify the meaning of the term.<sup id="cite_ref-gap_11-19" class="reference"><a href="#cite_note-gap-11"><span class="cite-bracket">&#91;</span>11<span class="cite-bracket">&#93;</span></a></sup> </p><p>It has been suggested that those who share the same emotional deficiencies and psychopathic features, but are properly socialized, should not be designated as 'psychopaths'.<sup id="cite_ref-Yildirim,_Bariş_O._2015_127-0" class="reference"><a href="#cite_note-Yildirim,_Bariş_O._2015-127"><span class="cite-bracket">&#91;</span>127<span class="cite-bracket">&#93;</span></a></sup> </p><p>The triarchic model<sup id="cite_ref-triarchic_model_5-1" class="reference"><a href="#cite_note-triarchic_model-5"><span class="cite-bracket">&#91;</span>5<span class="cite-bracket">&#93;</span></a></sup> suggests that different conceptions of psychopathy emphasize three observable characteristics to various degrees. Analyses have been made with respect to the applicability of measurement tools such as the <a href="/wiki/Psychopathy_Checklist" title="Psychopathy Checklist">Psychopathy Checklist</a> (PCL, PCL-R) and <a href="/wiki/Psychopathic_Personality_Inventory" title="Psychopathic Personality Inventory">Psychopathic Personality Inventory</a> (PPI) to this model.<sup id="cite_ref-triarchic_model_5-2" class="reference"><a href="#cite_note-triarchic_model-5"><span class="cite-bracket">&#91;</span>5<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-gap_11-20" class="reference"><a href="#cite_note-gap-11"><span class="cite-bracket">&#91;</span>11<span class="cite-bracket">&#93;</span></a></sup> </p> <ul><li><i><a href="/wiki/Boldness" title="Boldness">Boldness</a></i>. Low fear including stress-tolerance, toleration of unfamiliarity and danger, and high <a href="/wiki/Self-confidence" class="mw-redirect" title="Self-confidence">self-confidence</a> and social <a href="/wiki/Assertiveness" title="Assertiveness">assertiveness</a>. The PCL-R measures this relatively poorly and mainly through Facet 1 of Factor 1. Similar to PPI fearless dominance. May correspond to differences in the <a href="/wiki/Amygdala" title="Amygdala">amygdala</a> and other neurological systems associated with fear.<sup id="cite_ref-triarchic_model_5-3" class="reference"><a href="#cite_note-triarchic_model-5"><span class="cite-bracket">&#91;</span>5<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-gap_11-21" class="reference"><a href="#cite_note-gap-11"><span class="cite-bracket">&#91;</span>11<span class="cite-bracket">&#93;</span></a></sup></li> <li><i><a href="/wiki/Disinhibition" title="Disinhibition">Disinhibition</a></i>. Poor impulse control including problems with planning and foresight, lacking affect and urge control, demand for immediate gratification, and poor behavioral restraints. Similar to PCL-R Factor 2 and PPI impulsive antisociality. May correspond to impairments in <a href="/wiki/Frontal_lobe" title="Frontal lobe">frontal lobe</a> systems that are involved in such control.<sup id="cite_ref-triarchic_model_5-4" class="reference"><a href="#cite_note-triarchic_model-5"><span class="cite-bracket">&#91;</span>5<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-gap_11-22" class="reference"><a href="#cite_note-gap-11"><span class="cite-bracket">&#91;</span>11<span class="cite-bracket">&#93;</span></a></sup></li> <li><i><a href="/wiki/Meanness" title="Meanness">Meanness</a></i>. Lacking empathy and close attachments with others, disdain of close attachments, use of cruelty to gain empowerment, exploitative tendencies, defiance of authority, and destructive excitement seeking. The PCL-R in general is related to this but in particular some elements in Factor 1. Similar to PPI, but also includes elements of subscales in impulsive antisociality.<sup id="cite_ref-triarchic_model_5-5" class="reference"><a href="#cite_note-triarchic_model-5"><span class="cite-bracket">&#91;</span>5<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-gap_11-23" class="reference"><a href="#cite_note-gap-11"><span class="cite-bracket">&#91;</span>11<span class="cite-bracket">&#93;</span></a></sup></li></ul> <p>Psychopathy has been conceptualized as a hybrid condition marked by a <a href="/wiki/Paradox" title="Paradox">paradoxical</a> combination of superficial charm, poise, emotional resilience, and venturesomeness on the outside but deep-seated affective disturbances and <a href="/wiki/Disinhibition" title="Disinhibition">impulse control</a> deficits on the inside. From this perspective, psychopathy is at least in part characterized by psychologically <a href="/wiki/Adaptation" title="Adaptation">adaptive traits</a>.<sup id="cite_ref-128" class="reference"><a href="#cite_note-128"><span class="cite-bracket">&#91;</span>128<span class="cite-bracket">&#93;</span></a></sup> Furthermore, according to this view, psychopathy may be linked to at least some interpersonally successful outcomes, such as effective leadership, business accomplishments, and heroism.<sup id="cite_ref-gap_11-24" class="reference"><a href="#cite_note-gap-11"><span class="cite-bracket">&#91;</span>11<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-129" class="reference"><a href="#cite_note-129"><span class="cite-bracket">&#91;</span>129<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-130" class="reference"><a href="#cite_note-130"><span class="cite-bracket">&#91;</span>130<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-131" class="reference"><a href="#cite_note-131"><span class="cite-bracket">&#91;</span>131<span class="cite-bracket">&#93;</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Measurement">Measurement</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Psychopathy&amp;action=edit&amp;section=23" title="Edit section: Measurement"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>An early and influential analysis from Harris and colleagues indicated that a discrete category, or <a href="/wiki/Taxon" title="Taxon">taxon</a>, may underlie PCL-R psychopathy, allowing it to be measured and analyzed. However, this was only found for the behavioral Factor 2 items they identified, child problem behaviors; adult criminal behavior did not support the existence of a taxon.<sup id="cite_ref-132" class="reference"><a href="#cite_note-132"><span class="cite-bracket">&#91;</span>132<span class="cite-bracket">&#93;</span></a></sup> Marcus, John, and Edens more recently performed a series of statistical analyses on <a href="/wiki/Psychopathic_Personality_Inventory" title="Psychopathic Personality Inventory">PPI</a> scores and concluded that psychopathy may best be conceptualized as having a "dimensional latent structure" like <a href="/wiki/Depression_(mood)" title="Depression (mood)">depression</a>.<sup id="cite_ref-taxon_133-0" class="reference"><a href="#cite_note-taxon-133"><span class="cite-bracket">&#91;</span>133<span class="cite-bracket">&#93;</span></a></sup> </p><p>Marcus <i>et al.</i> repeated the study on a larger sample of prisoners, using the PCL-R and seeking to rule out other experimental or statistical issues that may have produced the previously different findings.<sup id="cite_ref-134" class="reference"><a href="#cite_note-134"><span class="cite-bracket">&#91;</span>134<span class="cite-bracket">&#93;</span></a></sup> They again found that the psychopathy measurements do not appear to be identifying a discrete type (a <a href="/wiki/Taxon" title="Taxon">taxon</a>). They suggest that while for legal or other practical purposes an arbitrary cut-off point on trait scores might be used, there is actually no clear scientific evidence for an objective point of difference by which to label some people "psychopaths"; in other words, a "psychopath" may be more accurately described as someone who is "relatively psychopathic".<sup id="cite_ref-gap_11-25" class="reference"><a href="#cite_note-gap-11"><span class="cite-bracket">&#91;</span>11<span class="cite-bracket">&#93;</span></a></sup> </p><p>The PCL-R was developed for research, not clinical forensic diagnosis, and even for research purposes to improve understanding of the underlying issues, it is necessary to examine dimensions of personality in general rather than only a constellation of traits. The PCL-R test has been used to determine "true" or primary psychopaths (individuals that score a 30 or higher on the PCL-R test). Primary psychopaths are distinguished from secondary psychopaths, and contrast with those who are legitimately considered <a href="/wiki/Antisocial" class="mw-disambig" title="Antisocial">antisocial</a>.<sup id="cite_ref-gap_11-26" class="reference"><a href="#cite_note-gap-11"><span class="cite-bracket">&#91;</span>11<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-135" class="reference"><a href="#cite_note-135"><span class="cite-bracket">&#91;</span>135<span class="cite-bracket">&#93;</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Personality_dimensions">Personality dimensions</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Psychopathy&amp;action=edit&amp;section=24" title="Edit section: Personality dimensions"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Studies have linked psychopathy to alternative dimensions such as antagonism (high), <a href="/wiki/Conscientiousness" title="Conscientiousness">conscientiousness</a> (low) and <a href="/wiki/Anxiousness" class="mw-redirect" title="Anxiousness">anxiousness</a> (low).<sup id="cite_ref-136" class="reference"><a href="#cite_note-136"><span class="cite-bracket">&#91;</span>136<span class="cite-bracket">&#93;</span></a></sup> </p><p>Psychopathy has also been linked to high <a href="/wiki/Psychoticism" title="Psychoticism">psychoticism</a>—a theorized dimension referring to tough, aggressive or hostile tendencies. Aspects of this that appear associated with psychopathy are lack of <a href="/wiki/Socialization" title="Socialization">socialization</a> and responsibility, <a href="/wiki/Impulsivity" title="Impulsivity">impulsivity</a>, sensation-seeking (in some cases), and aggression.<sup id="cite_ref-handbook_137-0" class="reference"><a href="#cite_note-handbook-137"><span class="cite-bracket">&#91;</span>137<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-bare_url_138-0" class="reference"><a href="#cite_note-bare_url-138"><span class="cite-bracket">&#91;</span>138<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-Kernberg_139-0" class="reference"><a href="#cite_note-Kernberg-139"><span class="cite-bracket">&#91;</span>139<span class="cite-bracket">&#93;</span></a></sup> </p><p><a href="/wiki/Otto_Kernberg" class="mw-redirect" title="Otto Kernberg">Otto Kernberg</a>, from a particular <a href="/wiki/Psychoanalysis" title="Psychoanalysis">psychoanalytic</a> perspective, believed psychopathy should be considered as part of a spectrum of pathological <a href="/wiki/Narcissism" title="Narcissism">narcissism</a>, that would range from narcissistic personality on the low end, <a href="/wiki/Malignant_narcissism" title="Malignant narcissism">malignant narcissism</a> in the middle, and psychopathy at the high end.<sup id="cite_ref-Kernberg_139-1" class="reference"><a href="#cite_note-Kernberg-139"><span class="cite-bracket">&#91;</span>139<span class="cite-bracket">&#93;</span></a></sup> </p><p>Psychopathy, narcissism and <a href="/wiki/Machiavellianism_(psychology)" title="Machiavellianism (psychology)">Machiavellianism</a>, three personality traits that are together referred to as the <a href="/wiki/Dark_triad" title="Dark triad">dark triad</a>, share certain characteristics, such as a callous-manipulative interpersonal style.<sup id="cite_ref-140" class="reference"><a href="#cite_note-140"><span class="cite-bracket">&#91;</span>140<span class="cite-bracket">&#93;</span></a></sup> The <a href="/wiki/Dark_triad#Dark_tetrad" title="Dark triad">dark tetrad</a> refers to these traits with the addition of <a href="/wiki/Everyday_sadism" title="Everyday sadism">sadism</a>.<sup id="cite_ref-RegoliHewitt2011_141-0" class="reference"><a href="#cite_note-RegoliHewitt2011-141"><span class="cite-bracket">&#91;</span>141<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-CampbellMiller2011_142-0" class="reference"><a href="#cite_note-CampbellMiller2011-142"><span class="cite-bracket">&#91;</span>142<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-LearyHoyle2009_143-0" class="reference"><a href="#cite_note-LearyHoyle2009-143"><span class="cite-bracket">&#91;</span>143<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-144" class="reference"><a href="#cite_note-144"><span class="cite-bracket">&#91;</span>144<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-Chabrol_145-0" class="reference"><a href="#cite_note-Chabrol-145"><span class="cite-bracket">&#91;</span>145<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-Buckels_146-0" class="reference"><a href="#cite_note-Buckels-146"><span class="cite-bracket">&#91;</span>146<span class="cite-bracket">&#93;</span></a></sup> Several psychologists have asserted that subclinical psychopathy and Machiavellianism are more or less interchangeable.<sup id="cite_ref-147" class="reference"><a href="#cite_note-147"><span class="cite-bracket">&#91;</span>147<span class="cite-bracket">&#93;</span></a></sup> There is a subscale on the Psychopathic Personality Inventory (PPI) dubbed "Machiavellian Egocentricity".<sup id="cite_ref-148" class="reference"><a href="#cite_note-148"><span class="cite-bracket">&#91;</span>148<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-149" class="reference"><a href="#cite_note-149"><span class="cite-bracket">&#91;</span>149<span class="cite-bracket">&#93;</span></a></sup> <a href="/wiki/Delroy_Paulhus" class="mw-redirect" title="Delroy Paulhus">Delroy Paulhus</a> has asserted that the difference that most miss is that while both are characterized by manipulativeness and unemotionality, psychopaths tend to be more reckless.<sup id="cite_ref-150" class="reference"><a href="#cite_note-150"><span class="cite-bracket">&#91;</span>150<span class="cite-bracket">&#93;</span></a></sup> One study asserted that "the ability to adapt, reappraise and reassess a situation may be key factors differentiating Machiavellianism from psychopathy, for example".<sup id="cite_ref-151" class="reference"><a href="#cite_note-151"><span class="cite-bracket">&#91;</span>151<span class="cite-bracket">&#93;</span></a></sup> Psychopathy and machiavellianism were also correlated similarly in responses to affective stimuli, and both are negatively correlated with recognition of facial emotions.<sup id="cite_ref-152" class="reference"><a href="#cite_note-152"><span class="cite-bracket">&#91;</span>152<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-153" class="reference"><a href="#cite_note-153"><span class="cite-bracket">&#91;</span>153<span class="cite-bracket">&#93;</span></a></sup> Many have suggested merging the dark triad traits (especially Machiavellianism and psychopathy) into one construct, given empirical studies which show immense overlap.<sup id="cite_ref-154" class="reference"><a href="#cite_note-154"><span class="cite-bracket">&#91;</span>154<span class="cite-bracket">&#93;</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Criticism_of_current_conceptions">Criticism of current conceptions</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Psychopathy&amp;action=edit&amp;section=25" title="Edit section: Criticism of current conceptions"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The current conceptions of psychopathy have been criticized for being poorly conceptualized, highly subjective, and encompassing a wide variety of underlying disorders. <a href="/wiki/Dorothy_Otnow_Lewis" title="Dorothy Otnow Lewis">Dorothy Otnow Lewis</a> has written: </p> <style data-mw-deduplicate="TemplateStyles:r1244412712">.mw-parser-output .templatequote{overflow:hidden;margin:1em 0;padding:0 32px}.mw-parser-output .templatequotecite{line-height:1.5em;text-align:left;margin-top:0}@media(min-width:500px){.mw-parser-output .templatequotecite{padding-left:1.6em}}</style><blockquote class="templatequote"><p>The concept and subsequent reification of the diagnosis "psychopathy" has, to this author's mind, hampered the understanding of criminality and violence. [...] According to Hare, in many cases one need not even meet the patient. Just rummage through his records to determine what items seemed to fit. Nonsense. To this writer's mind, psychopathy and its synonyms (e.g., sociopathy and antisocial personality) are lazy diagnoses. Over the years the authors' team has seen scores of offenders who, prior to evaluation by the authors, were dismissed as psychopaths or the like. Detailed, comprehensive psychiatric, neurological, and neuropsychological evaluations have uncovered a multitude of signs, symptoms, and behaviors indicative of such disorders as <a href="/wiki/Bipolar_disorder" title="Bipolar disorder">bipolar mood disorder</a>, <a href="/wiki/Schizophrenia" title="Schizophrenia">schizophrenia</a> spectrum disorders, complex partial seizures, <a href="/wiki/Dissociative_identity_disorder" title="Dissociative identity disorder">dissociative identity disorder</a>, <a href="/wiki/Parasomnia" title="Parasomnia">parasomnia</a>, and, of course, brain damage/dysfunction.<sup id="cite_ref-155" class="reference"><a href="#cite_note-155"><span class="cite-bracket">&#91;</span>155<span class="cite-bracket">&#93;</span></a></sup></p></blockquote> <p>Half of the Hare Psychopathy Checklist consists of symptoms of <a href="/wiki/Mania" title="Mania">mania</a>, <a href="/wiki/Hypomania" title="Hypomania">hypomania</a>, and frontal-lobe dysfunction, which frequently results in underlying disorders being dismissed.<sup id="cite_ref-156" class="reference"><a href="#cite_note-156"><span class="cite-bracket">&#91;</span>156<span class="cite-bracket">&#93;</span></a></sup> Hare's conception of psychopathy has also been criticized for being reductionist, dismissive, tautological, and ignorant of context as well as the dynamic nature of human behavior.<sup id="cite_ref-157" class="reference"><a href="#cite_note-157"><span class="cite-bracket">&#91;</span>157<span class="cite-bracket">&#93;</span></a></sup> Some have called for rejection of the concept altogether, due to its vague, subjective and judgmental nature that makes it prone to misuse.<sup id="cite_ref-158" class="reference"><a href="#cite_note-158"><span class="cite-bracket">&#91;</span>158<span class="cite-bracket">&#93;</span></a></sup> A systematic review determined that the PCL is weakly predictive of criminal behavior, but not of lack of conscience, or treatment and rehabilitation outcomes. These findings contradict widespread beliefs amongst professionals in forensics.<sup id="cite_ref-159" class="reference"><a href="#cite_note-159"><span class="cite-bracket">&#91;</span>159<span class="cite-bracket">&#93;</span></a></sup> </p><p>Psychopathic individuals do not show <a href="/wiki/Regret" title="Regret">regret</a> or <a href="/wiki/Remorse" title="Remorse">remorse</a>. This was thought to be due to an inability to generate this emotion in response to negative outcomes. However, in 2016, people with <a href="/wiki/Antisocial_personality_disorder" title="Antisocial personality disorder">antisocial personality disorder</a> and <a href="/wiki/Dissocial_personality_disorder" class="mw-redirect" title="Dissocial personality disorder">dissocial personality disorder</a> were found to experience regret, but did not use the regret to guide their choice in behavior. There was no lack of regret but a problem to think through a range of potential actions and estimating the outcome values.<sup id="cite_ref-160" class="reference"><a href="#cite_note-160"><span class="cite-bracket">&#91;</span>160<span class="cite-bracket">&#93;</span></a></sup> </p><p>In an experiment published in March 2007 at the <a href="/wiki/University_of_Southern_California" title="University of Southern California">University of Southern California</a> neuroscientist <a href="/wiki/Antonio_R._Damasio" class="mw-redirect" title="Antonio R. Damasio">Antonio R. Damasio</a> and his colleagues showed that subjects with damage to the <a href="/wiki/Ventromedial_prefrontal_cortex" title="Ventromedial prefrontal cortex">ventromedial prefrontal cortex</a> lack the ability to empathically feel their way to moral answers, and that when confronted with moral dilemmas, these brain-damaged patients coldly came up with "end-justifies-the-means" answers, leading Damasio to conclude that the point was not that they reached immoral conclusions, but that when they were confronted by a difficult issue – in this case as whether to shoot down a passenger plane hijacked by terrorists before it hits a major city – these patients appear to reach decisions without the anguish that afflicts those with typically functioning brains. According to <a href="/wiki/Adrian_Raine" title="Adrian Raine">Adrian Raine</a>, a clinical neuroscientist also at the University of Southern California, one of this study's implications is that society may have to rethink how it judges immoral people: "Psychopaths often feel no empathy or remorse. Without that awareness, people relying exclusively on reasoning seem to find it harder to sort their way through moral thickets. Does that mean they should be held to different standards of accountability?"<sup id="cite_ref-brain_161-0" class="reference"><a href="#cite_note-brain-161"><span class="cite-bracket">&#91;</span>161<span class="cite-bracket">&#93;</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Cause">Cause</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Psychopathy&amp;action=edit&amp;section=26" title="Edit section: Cause"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p><a href="/wiki/Behavioural_genetics" title="Behavioural genetics">Behavioral genetic</a> studies have identified potential genetic and non-genetic contributors to psychopathy, including influences on brain function. Proponents of the triarchic model believe that psychopathy results from the interaction of genetic predispositions and an adverse environment. What is adverse may differ depending on the underlying predisposition: for example, it is hypothesized that persons having high boldness may respond poorly to punishment but may respond better to rewards and secure attachments.<sup id="cite_ref-triarchic_model_5-6" class="reference"><a href="#cite_note-triarchic_model-5"><span class="cite-bracket">&#91;</span>5<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-gap_11-27" class="reference"><a href="#cite_note-gap-11"><span class="cite-bracket">&#91;</span>11<span class="cite-bracket">&#93;</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Genetic">Genetic</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Psychopathy&amp;action=edit&amp;section=27" title="Edit section: Genetic"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p><a href="/wiki/Behavioural_genetics" title="Behavioural genetics">Genetically informed</a> studies of the personality characteristics typical of individuals with psychopathy have found moderate genetic (as well as non-genetic) influences. On the PPI, fearless dominance and impulsive antisociality were similarly influenced by genetic factors and uncorrelated with each other. Genetic factors may generally influence the development of psychopathy while environmental factors affect the specific expression of the traits that predominate. A study on a large group of children found more than 60% heritability for "<a href="/wiki/Callous_and_unemotional_traits" title="Callous and unemotional traits">callous-unemotional traits</a>" and that conduct disorder among children with these traits has a higher heritability than among children without these traits.<sup id="cite_ref-gap_11-28" class="reference"><a href="#cite_note-gap-11"><span class="cite-bracket">&#91;</span>11<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-HareNeumann2008_78-1" class="reference"><a href="#cite_note-HareNeumann2008-78"><span class="cite-bracket">&#91;</span>78<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-Glenn2011_162-0" class="reference"><a href="#cite_note-Glenn2011-162"><span class="cite-bracket">&#91;</span>162<span class="cite-bracket">&#93;</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Environment">Environment</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Psychopathy&amp;action=edit&amp;section=28" title="Edit section: Environment"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Phineas_Gage_GageMillerPhoto2010-02-17_Unretouched_Color_Cropped.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/8/8c/Phineas_Gage_GageMillerPhoto2010-02-17_Unretouched_Color_Cropped.jpg/170px-Phineas_Gage_GageMillerPhoto2010-02-17_Unretouched_Color_Cropped.jpg" decoding="async" width="170" height="289" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/8c/Phineas_Gage_GageMillerPhoto2010-02-17_Unretouched_Color_Cropped.jpg/255px-Phineas_Gage_GageMillerPhoto2010-02-17_Unretouched_Color_Cropped.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/8c/Phineas_Gage_GageMillerPhoto2010-02-17_Unretouched_Color_Cropped.jpg/340px-Phineas_Gage_GageMillerPhoto2010-02-17_Unretouched_Color_Cropped.jpg 2x" data-file-width="1618" data-file-height="2750" /></a><figcaption>From accidents such as the one of <a href="/wiki/Phineas_Gage" title="Phineas Gage">Phineas Gage</a>, it is known that the <a href="/wiki/Prefrontal_cortex" title="Prefrontal cortex">prefrontal cortex</a> plays an important role in moral behavior.</figcaption></figure> <p>A study by Farrington of a sample of London males followed between age 8 and 48 included studying which factors scored 10 or more on the PCL:SV at age 48. The strongest factors included having a convicted parent, being physically neglected, low involvement of the father with the boy, low family income, and coming from a disrupted family. Other significant factors included poor supervision, abuse, harsh discipline, large family size, delinquent sibling, young mother, depressed mother, low social class, and poor housing.<sup id="cite_ref-Patrick2005b_163-0" class="reference"><a href="#cite_note-Patrick2005b-163"><span class="cite-bracket">&#91;</span>163<span class="cite-bracket">&#93;</span></a></sup> There has also been association between psychopathy and detrimental treatment by peers.<sup id="cite_ref-Without_Conscience_6-2" class="reference"><a href="#cite_note-Without_Conscience-6"><span class="cite-bracket">&#91;</span>6<span class="cite-bracket">&#93;</span></a></sup> However, it is difficult to determine the extent of an environmental influence on the development of psychopathy because of evidence of its strong heritability.<sup id="cite_ref-164" class="reference"><a href="#cite_note-164"><span class="cite-bracket">&#91;</span>164<span class="cite-bracket">&#93;</span></a></sup> </p> <div class="mw-heading mw-heading4"><h4 id="Brain_injury">Brain injury</h4><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Psychopathy&amp;action=edit&amp;section=29" title="Edit section: Brain injury"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Researchers have linked <a href="/wiki/Head_injuries" class="mw-redirect" title="Head injuries">head injuries</a> with psychopathy and violence. Since the 1980s, scientists have associated <a href="/wiki/Traumatic_brain_injury" title="Traumatic brain injury">traumatic brain injury</a>, such as damage to the <a href="/wiki/Prefrontal_cortex" title="Prefrontal cortex">prefrontal cortex</a>, including the <a href="/wiki/Orbitofrontal_cortex" title="Orbitofrontal cortex">orbitofrontal cortex</a>, with psychopathic behavior and a deficient ability to make morally and socially acceptable decisions, a condition that has been termed "acquired sociopathy", or "pseudopsychopathy".<sup id="cite_ref-Kiehl2006_84-1" class="reference"><a href="#cite_note-Kiehl2006-84"><span class="cite-bracket">&#91;</span>84<span class="cite-bracket">&#93;</span></a></sup> Individuals with damage to the area of the prefrontal cortex known as the <a href="/wiki/Ventromedial_prefrontal_cortex" title="Ventromedial prefrontal cortex">ventromedial prefrontal cortex</a> show remarkable similarities to diagnosed psychopathic individuals, displaying reduced <a href="/wiki/Autonomic_nervous_system" title="Autonomic nervous system">autonomic response</a> to emotional stimuli, deficits in aversive conditioning, similar preferences in moral and economic decision making, and diminished empathy and social emotions like guilt or shame.<sup id="cite_ref-165" class="reference"><a href="#cite_note-165"><span class="cite-bracket">&#91;</span>165<span class="cite-bracket">&#93;</span></a></sup> These emotional and moral impairments may be especially severe when the brain injury occurs at a young age. Children with early damage in the prefrontal cortex may never fully develop social or moral reasoning and become "psychopathic individuals&#160;... characterized by high levels of aggression and antisocial behavior performed without guilt or empathy for their victims". Additionally, damage to the <a href="/wiki/Amygdala" title="Amygdala">amygdala</a> may impair the ability of the prefrontal cortex to interpret feedback from the <a href="/wiki/Limbic_system" title="Limbic system">limbic system</a>, which could result in uninhibited signals that manifest in violent and aggressive behavior.<sup id="cite_ref-Protect_–_Watch_Your_Head_75-1" class="reference"><a href="#cite_note-Protect_–_Watch_Your_Head-75"><span class="cite-bracket">&#91;</span>75<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-Blair2002_86-1" class="reference"><a href="#cite_note-Blair2002-86"><span class="cite-bracket">&#91;</span>86<span class="cite-bracket">&#93;</span></a></sup> </p> <div class="mw-heading mw-heading4"><h4 id="Childhood_trauma">Childhood trauma</h4><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Psychopathy&amp;action=edit&amp;section=30" title="Edit section: Childhood trauma"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="excerpt-block"><style data-mw-deduplicate="TemplateStyles:r1066933788">.mw-parser-output .excerpt-hat .mw-editsection-like{font-style:normal}</style><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236090951"><div role="note" class="hatnote navigation-not-searchable dablink excerpt-hat selfref">This section is an excerpt from <a href="/wiki/Influence_of_childhood_trauma_in_psychopathy" title="Influence of childhood trauma in psychopathy">Influence of childhood trauma in psychopathy</a>.<span class="mw-editsection-like plainlinks"><span class="mw-editsection-bracket">[</span><a class="external text" href="https://en.wikipedia.org/w/index.php?title=Influence_of_childhood_trauma_in_psychopathy&amp;action=edit">edit</a><span class="mw-editsection-bracket">]</span></span></div><div class="excerpt"> <style data-mw-deduplicate="TemplateStyles:r1251242444">.mw-parser-output .ambox{border:1px solid #a2a9b1;border-left:10px solid #36c;background-color:#fbfbfb;box-sizing:border-box}.mw-parser-output .ambox+link+.ambox,.mw-parser-output .ambox+link+style+.ambox,.mw-parser-output .ambox+link+link+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+style+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+link+.ambox{margin-top:-1px}html body.mediawiki .mw-parser-output .ambox.mbox-small-left{margin:4px 1em 4px 0;overflow:hidden;width:238px;border-collapse:collapse;font-size:88%;line-height:1.25em}.mw-parser-output .ambox-speedy{border-left:10px solid #b32424;background-color:#fee7e6}.mw-parser-output .ambox-delete{border-left:10px solid #b32424}.mw-parser-output .ambox-content{border-left:10px solid #f28500}.mw-parser-output .ambox-style{border-left:10px solid #fc3}.mw-parser-output .ambox-move{border-left:10px solid #9932cc}.mw-parser-output .ambox-protection{border-left:10px solid #a2a9b1}.mw-parser-output .ambox .mbox-text{border:none;padding:0.25em 0.5em;width:100%}.mw-parser-output .ambox .mbox-image{border:none;padding:2px 0 2px 0.5em;text-align:center}.mw-parser-output .ambox .mbox-imageright{border:none;padding:2px 0.5em 2px 0;text-align:center}.mw-parser-output .ambox .mbox-empty-cell{border:none;padding:0;width:1px}.mw-parser-output .ambox .mbox-image-div{width:52px}@media(min-width:720px){.mw-parser-output .ambox{margin:0 10%}}@media print{body.ns-0 .mw-parser-output .ambox{display:none!important}}</style><table class="box-Essay-like plainlinks metadata ambox ambox-style ambox-essay-like" role="presentation"><tbody><tr><td class="mbox-image"><div class="mbox-image-div"><span typeof="mw:File"><span><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/f/f2/Edit-clear.svg/40px-Edit-clear.svg.png" decoding="async" width="40" height="40" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/f/f2/Edit-clear.svg/60px-Edit-clear.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/f/f2/Edit-clear.svg/80px-Edit-clear.svg.png 2x" data-file-width="48" data-file-height="48" /></span></span></div></td><td class="mbox-text"><div class="mbox-text-span">This article <b>is written like a <a href="/wiki/Wikipedia:What_Wikipedia_is_not#Wikipedia_is_not_a_publisher_of_original_thought" title="Wikipedia:What Wikipedia is not">personal reflection, personal essay, or argumentative essay</a></b> that states a Wikipedia editor's personal feelings or presents an original argument about a topic.<span class="hide-when-compact"> Please <a class="external text" href="https://en.wikipedia.org/w/index.php?title=Psychopathy&amp;action=edit">help improve it</a> by rewriting it in an <a href="/wiki/Wikipedia:Writing_better_articles#Information_style_and_tone" title="Wikipedia:Writing better articles">encyclopedic style</a>.</span> <span class="date-container"><i>(<span class="date">November 2021</span>)</i></span><span class="hide-when-compact"><i> (<small><a href="/wiki/Help:Maintenance_template_removal" title="Help:Maintenance template removal">Learn how and when to remove this message</a></small>)</i></span></div></td></tr></tbody></table> <p>The <a href="/wiki/Influence_of_childhood_trauma_in_psychopathy" title="Influence of childhood trauma in psychopathy">influence of childhood trauma on the development of psychopathy</a> in adulthood remains an active research question. According to Hervey M. Cleckley, a psychopathic person is someone who is able to imitate a normal functioning person, while masking or concealing their lack of internal personality structure. This results in an internal disorder with recurrent deliberate and detrimental conduct. Despite presenting themselves as serious, bright, and charming, psychopathic people are unable to experience true emotions. Robert Hare's <i>two factor</i> model and Christopher Patrick's <i>triarchic</i> model have both been developed to better understand psychopathy; however, whether the root cause is primarily environmental or primarily genetic is still in question.<sup class="noprint Inline-Template Template-Fact" style="white-space:nowrap;">&#91;<i><a href="/wiki/Wikipedia:Citation_needed" title="Wikipedia:Citation needed"><span title="This claim needs references to reliable sources. (November 2024)">citation needed</span></a></i>&#93;</sup> </p> Psychopathy is a personality construct<sup id="cite_ref-166" class="reference"><a href="#cite_note-166"><span class="cite-bracket">&#91;</span>166<span class="cite-bracket">&#93;</span></a></sup> consisting of affective, interpersonal, and behavioral dimensions that begins in childhood and manifests as aggressive actions in early or late adolescence. Childhood trauma affects vulnerability to different forms of psychopathology and traits associated with it. Parental behaviors such as rejection, abuse, neglect or overprotection show some relationship with the development of detrimental psychopathic traits. <a href="/wiki/Disinhibition" title="Disinhibition">Disinhibition</a> mediates the relationship between physical abuse and two components of psychopathy (social deviation and affective interpersonal). <a href="/wiki/Sexual_abuse" title="Sexual abuse">Sexual abuse</a> is directly correlated with the social deviation factor, and <a href="/wiki/Physical_abuse" title="Physical abuse">physical abuse</a> is directly correlated with the affective interpersonal factor.<sup id="cite_ref-167" class="reference"><a href="#cite_note-167"><span class="cite-bracket">&#91;</span>167<span class="cite-bracket">&#93;</span></a></sup> <a href="/wiki/Sex_differences_in_humans" title="Sex differences in humans">Gender differences</a> have also been observed in psychopathy. For example, psychopathic antisocial personality traits are more noticeable in males while histrionic personality traits are more evident in females. In addition, women are more likely to experience internalizing psychopathology than men<sup id="cite_ref-168" class="reference"><a href="#cite_note-168"><span class="cite-bracket">&#91;</span>168<span class="cite-bracket">&#93;</span></a></sup> and males may exhibit a stronger association between boldness and the experience of neglect as a child, as well as between meanness and the experience of childhood maltreatment.</div></div> <div class="mw-heading mw-heading3"><h3 id="Other_theories">Other theories</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Psychopathy&amp;action=edit&amp;section=31" title="Edit section: Other theories"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading4"><h4 id="Evolutionary_explanations">Evolutionary explanations</h4><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Psychopathy&amp;action=edit&amp;section=32" title="Edit section: Evolutionary explanations"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236090951"><div role="note" class="hatnote navigation-not-searchable">See also: <a href="/wiki/Evolutionary_psychiatry" title="Evolutionary psychiatry">Evolutionary psychiatry</a></div> <p>Psychopathy is associated with several adverse life outcomes as well as increased risk of disability and death due to factors such as violence, accidents, homicides, and suicides. This, in combination with the evidence for genetic influences, is evolutionarily puzzling and may suggest that there are compensating evolutionary advantages, and researchers within <a href="/wiki/Evolutionary_psychology" title="Evolutionary psychology">evolutionary psychology</a> have proposed several evolutionary explanations. According to one hypothesis, some traits associated with psychopathy may be socially adaptive, and psychopathy may be a frequency-dependent, socially <a href="/wiki/Parasitic" class="mw-redirect" title="Parasitic">parasitic</a> strategy, which may work as long as there is a large population of <a href="/wiki/Altruistic" class="mw-redirect" title="Altruistic">altruistic</a> and <a href="/wiki/Trusting" class="mw-redirect" title="Trusting">trusting</a> individuals, relative to the population of psychopathic individuals, to be exploited.<sup id="cite_ref-Glenn2011_162-1" class="reference"><a href="#cite_note-Glenn2011-162"><span class="cite-bracket">&#91;</span>162<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-Sorman2015_169-0" class="reference"><a href="#cite_note-Sorman2015-169"><span class="cite-bracket">&#91;</span>169<span class="cite-bracket">&#93;</span></a></sup> It is also suggested that some traits associated with psychopathy such as early, promiscuous, adulterous, and coercive sexuality may increase reproductive success.<sup id="cite_ref-Glenn2011_162-2" class="reference"><a href="#cite_note-Glenn2011-162"><span class="cite-bracket">&#91;</span>162<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-Sorman2015_169-1" class="reference"><a href="#cite_note-Sorman2015-169"><span class="cite-bracket">&#91;</span>169<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-170" class="reference"><a href="#cite_note-170"><span class="cite-bracket">&#91;</span>170<span class="cite-bracket">&#93;</span></a></sup> Robert Hare has stated that many psychopathic males have a pattern of mating with and quickly abandoning women, and thereby have a high <a href="/wiki/Fertility" title="Fertility">fertility</a> rate, resulting in children that may inherit a predisposition to psychopathy.<sup id="cite_ref-gap_11-29" class="reference"><a href="#cite_note-gap-11"><span class="cite-bracket">&#91;</span>11<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-Without_Conscience_6-3" class="reference"><a href="#cite_note-Without_Conscience-6"><span class="cite-bracket">&#91;</span>6<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-171" class="reference"><a href="#cite_note-171"><span class="cite-bracket">&#91;</span>171<span class="cite-bracket">&#93;</span></a></sup> </p><p>Criticism includes that it may be better to look at the contributing personality factors rather than treat psychopathy as a unitary concept due to poor testability. Furthermore, if psychopathy is caused by the combined effects of a very large number of adverse mutations then each mutation may have such a small effect that it escapes natural selection.<sup id="cite_ref-gap_11-30" class="reference"><a href="#cite_note-gap-11"><span class="cite-bracket">&#91;</span>11<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-Glenn2011_162-3" class="reference"><a href="#cite_note-Glenn2011-162"><span class="cite-bracket">&#91;</span>162<span class="cite-bracket">&#93;</span></a></sup> The personality is thought to be influenced by a very large number of genes and may be disrupted by random mutations, and psychopathy may instead be a product of a high <a href="/wiki/Genetic_load" title="Genetic load">mutation load</a>.<sup id="cite_ref-Glenn2011_162-4" class="reference"><a href="#cite_note-Glenn2011-162"><span class="cite-bracket">&#91;</span>162<span class="cite-bracket">&#93;</span></a></sup> Psychopathy has alternatively been suggested to be a <a href="/wiki/Spandrel_(biology)" title="Spandrel (biology)">spandrel</a>, a byproduct, or side-effect, of the evolution of adaptive traits rather than an adaptation in itself.<sup id="cite_ref-Sorman2015_169-2" class="reference"><a href="#cite_note-Sorman2015-169"><span class="cite-bracket">&#91;</span>169<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-172" class="reference"><a href="#cite_note-172"><span class="cite-bracket">&#91;</span>172<span class="cite-bracket">&#93;</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Mechanisms">Mechanisms</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Psychopathy&amp;action=edit&amp;section=33" title="Edit section: Mechanisms"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading3"><h3 id="Psychological">Psychological</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Psychopathy&amp;action=edit&amp;section=34" title="Edit section: Psychological"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236090951"><div role="note" class="hatnote navigation-not-searchable">See also: <a href="#Mental_characteristics">§&#160;Mental characteristics</a></div> <p>Some laboratory research demonstrates correlations between psychopathy and atypical responses to aversive stimuli, including weak <a href="/wiki/Classical_conditioning" title="Classical conditioning">conditioning</a> to painful stimuli and poor learning of avoiding responses that cause <a href="/wiki/Punishment" title="Punishment">punishment</a>, as well as low reactivity in the <a href="/wiki/Autonomic_nervous_system" title="Autonomic nervous system">autonomic nervous system</a> as measured with <a href="/wiki/Skin_conductance" class="mw-redirect" title="Skin conductance">skin conductance</a> while waiting for a painful stimulus but not when the stimulus occurs. While it has been argued that the <a href="/wiki/Reward_system" title="Reward system">reward system</a> functions normally, some studies have also found reduced reactivity to pleasurable stimuli. According to the <a href="/wiki/Response_modulation_hypothesis" title="Response modulation hypothesis">response modulation hypothesis</a>, psychopathic individuals have also had difficulty switching from an ongoing action despite environmental cues signaling a need to do so.<sup id="cite_ref-SmithLilienfeld2015_173-0" class="reference"><a href="#cite_note-SmithLilienfeld2015-173"><span class="cite-bracket">&#91;</span>173<span class="cite-bracket">&#93;</span></a></sup> This may explain the difficulty responding to punishment, although it is unclear if it can explain findings such as deficient conditioning. There may be methodological issues regarding the research.<sup id="cite_ref-gap_11-31" class="reference"><a href="#cite_note-gap-11"><span class="cite-bracket">&#91;</span>11<span class="cite-bracket">&#93;</span></a></sup> While establishing a range of idiosyncrasies on average in linguistic and affective processing under certain conditions, this research program has not confirmed a common pathology of psychopathy.<sup id="cite_ref-174" class="reference"><a href="#cite_note-174"><span class="cite-bracket">&#91;</span>174<span class="cite-bracket">&#93;</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Neurological">Neurological</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Psychopathy&amp;action=edit&amp;section=35" title="Edit section: Neurological"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:MRI_of_orbitofrontal_cortex.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/f/f6/MRI_of_orbitofrontal_cortex.jpg/220px-MRI_of_orbitofrontal_cortex.jpg" decoding="async" width="220" height="210" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/f6/MRI_of_orbitofrontal_cortex.jpg/330px-MRI_of_orbitofrontal_cortex.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/f6/MRI_of_orbitofrontal_cortex.jpg/440px-MRI_of_orbitofrontal_cortex.jpg 2x" data-file-width="705" data-file-height="672" /></a><figcaption>Dysfunction of the <a href="/wiki/Orbitofrontal_cortex" title="Orbitofrontal cortex">orbitofrontal cortex</a>, among other areas, is implicated in the mechanism of psychopathy.</figcaption></figure> <p>Thanks to advancing <a href="/wiki/MRI" class="mw-redirect" title="MRI">MRI</a> studies, experts are able to visualize specific brain differences and abnormalities of individuals with psychopathy in areas that control emotions, social interactions, ethics, morality, regret, impulsivity and conscience within the brain. Blair, a researcher who pioneered research into psychopathic tendencies stated, "With regard to psychopathy, we have clear indications regarding why the pathology gives rise to the emotional and behavioral disturbance and important insights into the neural systems implicated in this pathology".<sup id="cite_ref-Blair2002_86-2" class="reference"><a href="#cite_note-Blair2002-86"><span class="cite-bracket">&#91;</span>86<span class="cite-bracket">&#93;</span></a></sup> Dadds et al., remarks that despite a rapidly advancing neuroscience of empathy, little is known about the developmental underpinnings of the psychopathic disconnect between affective and cognitive empathy.<sup id="cite_ref-Dadds_et_al._175-0" class="reference"><a href="#cite_note-Dadds_et_al.-175"><span class="cite-bracket">&#91;</span>175<span class="cite-bracket">&#93;</span></a></sup> </p><p>A 2008 review by Weber et al. suggested that psychopathy is sometimes associated with brain abnormalities in <a href="/wiki/Prefrontal_cortex" title="Prefrontal cortex">prefrontal</a>-<a href="/wiki/Temporal_lobe" title="Temporal lobe">temporo</a>-<a href="/wiki/Limbic_system" title="Limbic system">limbic</a> regions that are involved in emotional and learning processes, among others.<sup id="cite_ref-review2008_176-0" class="reference"><a href="#cite_note-review2008-176"><span class="cite-bracket">&#91;</span>176<span class="cite-bracket">&#93;</span></a></sup> Neuroimaging studies have found structural and functional differences between those scoring high and low on the PCL-R in a 2011 review by Skeem et al. stating that they are "most notably in the <a href="/wiki/Amygdala" title="Amygdala">amygdala</a>, <a href="/wiki/Hippocampus" title="Hippocampus">hippocampus</a> and <a href="/wiki/Parahippocampal_gyrus" title="Parahippocampal gyrus">parahippocampal gyri</a>, anterior and posterior <a href="/wiki/Cingulate_cortex" title="Cingulate cortex">cingulate cortex</a>, <a href="/wiki/Striatum" title="Striatum">striatum</a>, <a href="/wiki/Insular_cortex" title="Insular cortex">insula</a>, and <a href="/wiki/Frontal_lobe" title="Frontal lobe">frontal</a> and <a href="/wiki/Temporal_lobe" title="Temporal lobe">temporal</a> <a href="/wiki/Cerebral_cortex" title="Cerebral cortex">cortex</a>".<sup id="cite_ref-gap_11-32" class="reference"><a href="#cite_note-gap-11"><span class="cite-bracket">&#91;</span>11<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-177" class="reference"><a href="#cite_note-177"><span class="cite-bracket">&#91;</span>177<span class="cite-bracket">&#93;</span></a></sup> </p><p>The amygdala and frontal areas have been suggested as particularly important.<sup id="cite_ref-pmid18434283_76-1" class="reference"><a href="#cite_note-pmid18434283-76"><span class="cite-bracket">&#91;</span>76<span class="cite-bracket">&#93;</span></a></sup> People scoring 25 or higher in the PCL-R, with an associated history of violent behavior, appear on average to have significantly reduced microstructural integrity between the <a href="/wiki/White_matter" title="White matter">white matter</a> connecting the amygdala and <a href="/wiki/Orbitofrontal_cortex" title="Orbitofrontal cortex">orbitofrontal cortex</a> (such as the uncinate fasciculus). The evidence suggested that the degree of abnormality was significantly related to the degree of psychopathy and may explain the offending behaviors.<sup id="cite_ref-pmid19506560_77-1" class="reference"><a href="#cite_note-pmid19506560-77"><span class="cite-bracket">&#91;</span>77<span class="cite-bracket">&#93;</span></a></sup> Furthermore, changes in the amygdala have been associated with "callous-unemotional" traits in children. However, the amygdala has also been associated with positive emotions, and there have been inconsistent results in the studies in particular areas, which may be due to methodological issues.<sup id="cite_ref-gap_11-33" class="reference"><a href="#cite_note-gap-11"><span class="cite-bracket">&#91;</span>11<span class="cite-bracket">&#93;</span></a></sup> Others have cast doubt on the amygdala as important for psychopathy, with one meta-analysis suggesting that most studies on the amygdala and psychopathy find <a href="/wiki/Null_hypothesis" title="Null hypothesis">no effect</a> and that studies finding a negative effect (that psychopaths display less amygdala activity) have lower <a href="/wiki/Power_(statistics)" title="Power (statistics)">statistical power</a>.<sup id="cite_ref-p985_178-0" class="reference"><a href="#cite_note-p985-178"><span class="cite-bracket">&#91;</span>178<span class="cite-bracket">&#93;</span></a></sup> </p><p>Some of these findings are consistent with other research and theories. For example, in a <a href="/wiki/Neuroimaging" title="Neuroimaging">neuroimaging</a> study of how individuals with psychopathy respond to emotional words, widespread differences in activation patterns have been shown across the temporal lobe when psychopathic criminals were compared to "normal" volunteers, which is consistent with views in clinical psychology. Additionally, the notion of psychopathy being characterized by low fear is consistent with findings of abnormalities in the amygdala, since deficits in aversive conditioning and instrumental learning are thought to result from amygdala dysfunction, potentially compounded by <a href="/wiki/Orbitofrontal_cortex" title="Orbitofrontal cortex">orbitofrontal cortex</a> dysfunction, although the specific reasons are unknown.<sup id="cite_ref-Blair2002_86-3" class="reference"><a href="#cite_note-Blair2002-86"><span class="cite-bracket">&#91;</span>86<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-179" class="reference"><a href="#cite_note-179"><span class="cite-bracket">&#91;</span>179<span class="cite-bracket">&#93;</span></a></sup> </p><p>Considerable research has documented the presence of the two subtypes of primary and secondary psychopathy.<sup id="cite_ref-Patrick2018_180-0" class="reference"><a href="#cite_note-Patrick2018-180"><span class="cite-bracket">&#91;</span>180<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-Hicks2018_181-0" class="reference"><a href="#cite_note-Hicks2018-181"><span class="cite-bracket">&#91;</span>181<span class="cite-bracket">&#93;</span></a></sup> Proponents of the primary-secondary psychopathy distinction and triarchic model argue that there are neurological differences between these subgroups of psychopathy which support their views.<sup id="cite_ref-182" class="reference"><a href="#cite_note-182"><span class="cite-bracket">&#91;</span>182<span class="cite-bracket">&#93;</span></a></sup> For instance, the boldness factor in the triarchic model is argued to be associated with reduced activity in the amygdala during fearful or aversive stimuli and reduced <a href="/wiki/Startle_response" title="Startle response">startle response</a>, while the disinhibition factor is argued to be associated with impairment of frontal lobe tasks. There is evidence that boldness and disinhibition are genetically distinguishable.<sup id="cite_ref-gap_11-34" class="reference"><a href="#cite_note-gap-11"><span class="cite-bracket">&#91;</span>11<span class="cite-bracket">&#93;</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Biochemical">Biochemical</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Psychopathy&amp;action=edit&amp;section=36" title="Edit section: Biochemical"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>High levels of <a href="/wiki/Testosterone" title="Testosterone">testosterone</a> combined with low levels of <a href="/wiki/Cortisol" title="Cortisol">cortisol</a> and/or <a href="/wiki/Serotonin" title="Serotonin">serotonin</a> have been theorized as contributing factors. Testosterone is "associated with approach-related behavior, reward sensitivity, and fear reduction", and injecting testosterone "shift[s] the balance from punishment to reward sensitivity", decreases fearfulness, and increases "responding to angry faces". Some studies have found that high testosterone levels are associated with antisocial and aggressive behaviors, yet other research suggests that testosterone alone does not cause aggression but increases dominance-seeking. It is unclear from studies if psychopathy correlates with high testosterone levels, but a few studies have found that disruption of serotonin neurotransmission disrupts cortisol reactivity to a stress-inducing speech task. Thus, dysregulation of serotonin in the brain may contribute to the low cortisol levels observed in psychopathy. Cortisol increases withdrawal behavior and sensitivity to punishment and aversive conditioning, which are abnormally low in individuals with psychopathy and may underlie their impaired aversion learning and disinhibited behavior. High testosterone levels combined with low serotonin levels are associated with "impulsive and highly negative reactions", and may increase violent aggression when an individual is provoked or becomes frustrated.<sup id="cite_ref-Glenn2008_183-0" class="reference"><a href="#cite_note-Glenn2008-183"><span class="cite-bracket">&#91;</span>183<span class="cite-bracket">&#93;</span></a></sup> Several animal studies note the role of <a href="/wiki/Serotonin" title="Serotonin">serotonergic</a> functioning in impulsive aggression and antisocial behavior.<sup id="cite_ref-184" class="reference"><a href="#cite_note-184"><span class="cite-bracket">&#91;</span>184<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-185" class="reference"><a href="#cite_note-185"><span class="cite-bracket">&#91;</span>185<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-186" class="reference"><a href="#cite_note-186"><span class="cite-bracket">&#91;</span>186<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-187" class="reference"><a href="#cite_note-187"><span class="cite-bracket">&#91;</span>187<span class="cite-bracket">&#93;</span></a></sup> </p><p>However, some studies on animal and human subjects have suggested that the emotional-interpersonal traits and predatory aggression of psychopathy, in contrast to impulsive and reactive aggression, is related to <i>increased</i> <a href="/wiki/Serotonin" title="Serotonin">serotoninergic</a> functioning.<sup id="cite_ref-GlennJanuary2011_188-0" class="reference"><a href="#cite_note-GlennJanuary2011-188"><span class="cite-bracket">&#91;</span>188<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-189" class="reference"><a href="#cite_note-189"><span class="cite-bracket">&#91;</span>189<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-190" class="reference"><a href="#cite_note-190"><span class="cite-bracket">&#91;</span>190<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-191" class="reference"><a href="#cite_note-191"><span class="cite-bracket">&#91;</span>191<span class="cite-bracket">&#93;</span></a></sup> A study by Dolan and Anderson, regarding the relationship between serotonin and psychopathic traits in a sample of personality disordered offenders, found that serotonin functioning as measured by <a href="/wiki/Prolactin" title="Prolactin">prolactin</a> response, while inversely associated with impulsive and antisocial traits, were positively correlated with arrogant and deceitful traits, and, to a lesser extent, callous and remorseless traits.<sup id="cite_ref-192" class="reference"><a href="#cite_note-192"><span class="cite-bracket">&#91;</span>192<span class="cite-bracket">&#93;</span></a></sup> Bariş Yildirim theorizes that the <a href="/wiki/5-HTTLPR" title="5-HTTLPR">5-HTTLPR</a> "long" allele, which is generally regarded as protective against <a href="/wiki/Internalizing_disorder" title="Internalizing disorder">internalizing disorders</a>, may interact with other serotoninergic genes to create a hyper-regulation and dampening of affective processes that results in psychopathy's emotional impairments.<sup id="cite_ref-Yildirim2013_193-0" class="reference"><a href="#cite_note-Yildirim2013-193"><span class="cite-bracket">&#91;</span>193<span class="cite-bracket">&#93;</span></a></sup> Furthermore, the combination of the 5-HTTLPR long allele and high testosterone levels has been found to result in a reduced response to threat as measured by cortisol reactivity, which mirrors the fear deficits found in those with psychopathy.<sup id="cite_ref-194" class="reference"><a href="#cite_note-194"><span class="cite-bracket">&#91;</span>194<span class="cite-bracket">&#93;</span></a></sup> </p><p>Studies have suggested other correlations. Psychopathy was associated in two studies with an increased ratio of <a href="/wiki/Homovanillic_acid" title="Homovanillic acid">HVA</a> (a <a href="/wiki/Dopamine" title="Dopamine">dopamine</a> metabolite) to <a href="/wiki/5-HIAA" class="mw-redirect" title="5-HIAA">5-HIAA</a> (a <a href="/wiki/Serotonin" title="Serotonin">serotonin</a> metabolite).<sup id="cite_ref-Glenn2008_183-1" class="reference"><a href="#cite_note-Glenn2008-183"><span class="cite-bracket">&#91;</span>183<span class="cite-bracket">&#93;</span></a></sup> Studies have found that individuals with the traits meeting criteria for psychopathy show a greater dopamine response to potential "rewards" such as monetary promises or taking drugs such as amphetamines. This has been theoretically linked to increased impulsivity.<sup id="cite_ref-195" class="reference"><a href="#cite_note-195"><span class="cite-bracket">&#91;</span>195<span class="cite-bracket">&#93;</span></a></sup> A 2010 British study found that a large 2D:4D <a href="/wiki/Digit_ratio" title="Digit ratio">digit ratio</a>, an indication of high <a href="/wiki/Prenatal" class="mw-redirect" title="Prenatal">prenatal</a> <a href="/wiki/Estrogen" title="Estrogen">estrogen</a> exposure, was a "positive correlate of psychopathy in females, and a positive correlate of callous affect (psychopathy sub-scale) in males".<sup id="cite_ref-196" class="reference"><a href="#cite_note-196"><span class="cite-bracket">&#91;</span>196<span class="cite-bracket">&#93;</span></a></sup> </p><p>Findings have also shown <a href="/wiki/Monoamine_oxidase_A" title="Monoamine oxidase A">monoamine oxidase A</a> to affect the predictive ability of the PCL-R.<sup id="cite_ref-Tikkanen_et_al._2011_197-0" class="reference"><a href="#cite_note-Tikkanen_et_al._2011-197"><span class="cite-bracket">&#91;</span>197<span class="cite-bracket">&#93;</span></a></sup> Monoamine oxidases (MAOs) are enzymes that are involved in the breakdown of neurotransmitters such as serotonin and dopamine and are, therefore, capable of influencing feelings, mood, and behavior in individuals.<sup id="cite_ref-Hook_2009_198-0" class="reference"><a href="#cite_note-Hook_2009-198"><span class="cite-bracket">&#91;</span>198<span class="cite-bracket">&#93;</span></a></sup> Findings suggest that further research is needed in this area.<sup id="cite_ref-MaoriWarriorGene_199-0" class="reference"><a href="#cite_note-MaoriWarriorGene-199"><span class="cite-bracket">&#91;</span>199<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-url_Scientist_debunks_&#39;warrior_gene&#39;_200-0" class="reference"><a href="#cite_note-url_Scientist_debunks_&#39;warrior_gene&#39;-200"><span class="cite-bracket">&#91;</span>200<span class="cite-bracket">&#93;</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Diagnosis">Diagnosis</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Psychopathy&amp;action=edit&amp;section=37" title="Edit section: Diagnosis"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading3"><h3 id="Tools">Tools</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Psychopathy&amp;action=edit&amp;section=38" title="Edit section: Tools"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading4"><h4 id="Psychopathy_Checklist">Psychopathy Checklist</h4><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Psychopathy&amp;action=edit&amp;section=39" title="Edit section: Psychopathy Checklist"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236090951"><div role="note" class="hatnote navigation-not-searchable">Main article: <a href="/wiki/Psychopathy_Checklist" title="Psychopathy Checklist">Psychopathy Checklist</a></div> <p>Psychopathy is most commonly assessed with the <i>Psychopathy Checklist, Revised (PCL-R)</i>, created by <a href="/wiki/Robert_D._Hare" title="Robert D. Hare">Robert D. Hare</a> based on Cleckley's criteria from the 1940s, criminological concepts such as those of <a href="/wiki/Joan_McCord" title="Joan McCord">William and Joan McCord</a>, and his own research on criminals and incarcerated offenders in Canada.<sup id="cite_ref-HareNeumann2008_78-2" class="reference"><a href="#cite_note-HareNeumann2008-78"><span class="cite-bracket">&#91;</span>78<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-Blackburn2005_201-0" class="reference"><a href="#cite_note-Blackburn2005-201"><span class="cite-bracket">&#91;</span>201<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-202" class="reference"><a href="#cite_note-202"><span class="cite-bracket">&#91;</span>202<span class="cite-bracket">&#93;</span></a></sup> The PCL-R is widely used and is referred to by some as the "gold standard" for assessing psychopathy.<sup id="cite_ref-kiehlhistoryneuroscience_203-0" class="reference"><a href="#cite_note-kiehlhistoryneuroscience-203"><span class="cite-bracket">&#91;</span>203<span class="cite-bracket">&#93;</span></a></sup> There are nonetheless numerous criticisms of the PCL-R <a href="/wiki/Psychopathy_Checklist#Criticism" title="Psychopathy Checklist">as a theoretical tool</a> and in <a href="/wiki/Psychopathy_Checklist#Use" title="Psychopathy Checklist">real-world usage</a>.<sup id="cite_ref-Minkel_204-0" class="reference"><a href="#cite_note-Minkel-204"><span class="cite-bracket">&#91;</span>204<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-ReferenceA_205-0" class="reference"><a href="#cite_note-ReferenceA-205"><span class="cite-bracket">&#91;</span>205<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-jaapl.org_206-0" class="reference"><a href="#cite_note-jaapl.org-206"><span class="cite-bracket">&#91;</span>206<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-Franklin_2011_207-0" class="reference"><a href="#cite_note-Franklin_2011-207"><span class="cite-bracket">&#91;</span>207<span class="cite-bracket">&#93;</span></a></sup><sup class="noprint Inline-Template" style="white-space:nowrap;">&#91;<i><a href="/wiki/Wikipedia:Verifiability#Self-published_sources" title="Wikipedia:Verifiability"><span title="The material near this tag may rely on a self-published source. (September 2013)">self-published source?</span></a></i>&#93;</sup><sup id="cite_ref-ReferenceB_208-0" class="reference"><a href="#cite_note-ReferenceB-208"><span class="cite-bracket">&#91;</span>208<span class="cite-bracket">&#93;</span></a></sup> </p> <div class="mw-heading mw-heading4"><h4 id="Psychopathic_Personality_Inventory">Psychopathic Personality Inventory</h4><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Psychopathy&amp;action=edit&amp;section=40" title="Edit section: Psychopathic Personality Inventory"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236090951"><div role="note" class="hatnote navigation-not-searchable">Main article: <a href="/wiki/Psychopathic_Personality_Inventory" title="Psychopathic Personality Inventory">Psychopathic Personality Inventory</a></div> <p>Unlike the PCL, the Psychopathic Personality Inventory (PPI) was developed to comprehensively index personality traits without explicitly referring to antisocial or criminal behaviors themselves. It is a self-report scale that was developed originally for non-clinical samples (e.g. university students) rather than prisoners, though may be used with the latter. It was revised in 2005 to become the PPI-R and now comprises 154 items organized into eight subscales.<sup id="cite_ref-ppi-r_209-0" class="reference"><a href="#cite_note-ppi-r-209"><span class="cite-bracket">&#91;</span>209<span class="cite-bracket">&#93;</span></a></sup> The item scores have been found to group into two overarching and largely separate factors (unlike the PCL-R factors), Fearless-Dominance and Impulsive Antisociality, plus a third factor, Coldheartedness, which is largely dependent on scores on the other two.<sup id="cite_ref-gap_11-35" class="reference"><a href="#cite_note-gap-11"><span class="cite-bracket">&#91;</span>11<span class="cite-bracket">&#93;</span></a></sup> Factor 1 is associated with social efficacy while Factor 2 is associated with maladaptive tendencies. A person may score at different levels on the different factors, but the overall score indicates the extent of psychopathic personality.<sup id="cite_ref-gap_11-36" class="reference"><a href="#cite_note-gap-11"><span class="cite-bracket">&#91;</span>11<span class="cite-bracket">&#93;</span></a></sup> </p> <div class="mw-heading mw-heading4"><h4 id="Triarchic_Psychopathy_Measure">Triarchic Psychopathy Measure</h4><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Psychopathy&amp;action=edit&amp;section=41" title="Edit section: Triarchic Psychopathy Measure"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The Triarchic Psychopathy Measure, otherwise known as the TriPM, is a 58-item, self-report assessment that measures psychopathy within the three traits identified in the triarchic model: boldness, meanness and disinhibition. Each trait is measured on separate subscales and added up resulting in a total psychopathy score.<sup id="cite_ref-210" class="reference"><a href="#cite_note-210"><span class="cite-bracket">&#91;</span>210<span class="cite-bracket">&#93;</span></a></sup> </p><p>The TriPM includes various components of other measures for assessing psychopathy, including meanness and disinhibition patterns within the psychopathic personality. However, there are differing approaches in the measurement of the boldness construct.<sup id="cite_ref-211" class="reference"><a href="#cite_note-211"><span class="cite-bracket">&#91;</span>211<span class="cite-bracket">&#93;</span></a></sup> The boldness construct is used to highlighting the social and interpersonal implications of the psychopathic personality. </p> <div class="mw-heading mw-heading4"><h4 id="DSM_and_ICD">DSM and ICD</h4><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Psychopathy&amp;action=edit&amp;section=42" title="Edit section: DSM and ICD"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>There are currently two widely established systems for classifying <a href="/wiki/Mental_disorders" class="mw-redirect" title="Mental disorders">mental disorders</a>—the <i><a href="/wiki/International_Classification_of_Diseases" title="International Classification of Diseases">International Classification of Diseases</a></i> (ICD) produced by the <a href="/wiki/World_Health_Organization" title="World Health Organization">World Health Organization</a> (WHO) and the <i><a href="/wiki/Diagnostic_and_Statistical_Manual_of_Mental_Disorders" title="Diagnostic and Statistical Manual of Mental Disorders">Diagnostic and Statistical Manual of Mental Disorders</a></i> (DSM) produced by the <a href="/wiki/American_Psychiatric_Association" title="American Psychiatric Association">American Psychiatric Association</a> (APA).<sup id="cite_ref-212" class="reference"><a href="#cite_note-212"><span class="cite-bracket">&#91;</span>212<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-213" class="reference"><a href="#cite_note-213"><span class="cite-bracket">&#91;</span>213<span class="cite-bracket">&#93;</span></a></sup> Both list categories of disorders thought to be distinct types, and have deliberately converged their codes in recent revisions so that the manuals are often broadly comparable, although significant differences remain.<sup id="cite_ref-214" class="reference"><a href="#cite_note-214"><span class="cite-bracket">&#91;</span>214<span class="cite-bracket">&#93;</span></a></sup> </p><p>The first edition of the DSM in 1952 had a section on sociopathic personality disturbances, then a general term that included such things as homosexuality and alcoholism as well as an "antisocial reaction" and "dyssocial reaction". The latter two eventually became <a href="/wiki/Antisocial_personality_disorder" title="Antisocial personality disorder">antisocial personality disorder</a> (ASPD) in the DSM and <a href="/wiki/Dissocial_personality_disorder" class="mw-redirect" title="Dissocial personality disorder">dissocial personality disorder</a> in the ICD.<sup class="noprint Inline-Template Template-Fact" style="white-space:nowrap;">&#91;<i><a href="/wiki/Wikipedia:Citation_needed" title="Wikipedia:Citation needed"><span title="This claim needs references to reliable sources. (July 2013)">citation needed</span></a></i>&#93;</sup> Both manuals have stated that their diagnoses have been referred to, or include what is referred to, as psychopathy or sociopathy, although neither diagnostic manual has ever included a disorder officially titled as such.<sup id="cite_ref-gap_11-37" class="reference"><a href="#cite_note-gap-11"><span class="cite-bracket">&#91;</span>11<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-Handbook_of_Psychopathy_13-3" class="reference"><a href="#cite_note-Handbook_of_Psychopathy-13"><span class="cite-bracket">&#91;</span>13<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-aspd_statement_16-1" class="reference"><a href="#cite_note-aspd_statement-16"><span class="cite-bracket">&#91;</span>16<span class="cite-bracket">&#93;</span></a></sup> </p> <div class="mw-heading mw-heading4"><h4 id="Other_tools">Other tools</h4><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Psychopathy&amp;action=edit&amp;section=43" title="Edit section: Other tools"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>There are some traditional <a href="/wiki/Personality_tests" class="mw-redirect" title="Personality tests">personality tests</a> that contain subscales relating to psychopathy, though they assess relatively non-specific tendencies towards antisocial or criminal behavior. These include the <a href="/wiki/Minnesota_Multiphasic_Personality_Inventory" title="Minnesota Multiphasic Personality Inventory">Minnesota Multiphasic Personality Inventory</a> (Psychopathic Deviate scale), <a href="/wiki/California_Psychological_Inventory" title="California Psychological Inventory">California Psychological Inventory</a> (Socialization scale), and <a href="/wiki/Millon_Clinical_Multiaxial_Inventory" title="Millon Clinical Multiaxial Inventory">Millon Clinical Multiaxial Inventory</a> Antisocial Personality Disorder scale. There is also the <a href="/wiki/Levenson_Self-Report_Psychopathy_Scale" title="Levenson Self-Report Psychopathy Scale">Levenson Self-Report Psychopathy Scale</a> (LSRP) and the Hare Self-Report Psychopathy Scale (HSRP), but in terms of self-report tests, the PPI/PPI-R has become more used than either of these in modern psychopathy research on adults.<sup id="cite_ref-gap_11-38" class="reference"><a href="#cite_note-gap-11"><span class="cite-bracket">&#91;</span>11<span class="cite-bracket">&#93;</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Comorbidity">Comorbidity</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Psychopathy&amp;action=edit&amp;section=44" title="Edit section: Comorbidity"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Studies suggest strong comorbidity between psychopathy and <a href="/wiki/Antisocial_personality_disorder" title="Antisocial personality disorder">antisocial personality disorder</a>. Among numerous studies, positive correlations have also been reported between psychopathy and <a href="/wiki/Histrionic_personality_disorder" title="Histrionic personality disorder">histrionic</a>, <a href="/wiki/Narcissistic_personality_disorder" title="Narcissistic personality disorder">narcissistic</a>, <a href="/wiki/Borderline_personality_disorder" title="Borderline personality disorder">borderline</a>, <a href="/wiki/Paranoid_personality_disorder" title="Paranoid personality disorder">paranoid</a>, and <a href="/wiki/Schizoid_personality_disorder" title="Schizoid personality disorder">schizoid</a> <a href="/wiki/Personality_disorder" title="Personality disorder">personality disorders</a>, <a href="/wiki/Panic_disorder" title="Panic disorder">panic</a> and <a href="/wiki/Obsessive%E2%80%93compulsive_disorder" title="Obsessive–compulsive disorder">obsessive–compulsive</a> disorders, but not <a href="/wiki/Neurosis" title="Neurosis">neurotic</a> disorders in general, <a href="/wiki/Schizophrenia" title="Schizophrenia">schizophrenia</a>, or <a href="/wiki/Major_depressive_disorder" title="Major depressive disorder">depression</a>.<sup id="cite_ref-englandandwales2009_37-1" class="reference"><a href="#cite_note-englandandwales2009-37"><span class="cite-bracket">&#91;</span>37<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-BlairMitchellBlair_215-0" class="reference"><a href="#cite_note-BlairMitchellBlair-215"><span class="cite-bracket">&#91;</span>215<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-Nioche_216-0" class="reference"><a href="#cite_note-Nioche-216"><span class="cite-bracket">&#91;</span>216<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-Hildebrand_217-0" class="reference"><a href="#cite_note-Hildebrand-217"><span class="cite-bracket">&#91;</span>217<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-Nedopil_218-0" class="reference"><a href="#cite_note-Nedopil-218"><span class="cite-bracket">&#91;</span>218<span class="cite-bracket">&#93;</span></a></sup> </p><p>Factor 1 and the boldness scale of psychopathy measurements are associated with narcissism and histrionic personality disorder. This is due to a psychopath's cognitive and affective egocentrism. However, while a narcissistic individual might view themselves as confident, they might seek out validation and attention from others to validate their self-worth, whereas a psychopathic individual usually lacks such ambitions.<sup id="cite_ref-Yildirim,_Bariş_O._2015_127-1" class="reference"><a href="#cite_note-Yildirim,_Bariş_O._2015-127"><span class="cite-bracket">&#91;</span>127<span class="cite-bracket">&#93;</span></a></sup> </p><p>Attention deficit hyperactivity disorder (<a href="/wiki/ADHD" class="mw-redirect" title="ADHD">ADHD</a>) is known to be highly comorbid with <a href="/wiki/Conduct_disorder" title="Conduct disorder">conduct disorder</a> (a theorized precursor to ASPD), and may also co-occur with psychopathic tendencies. This may be explained in part by deficits in <a href="/wiki/Executive_functions" title="Executive functions">executive function</a>.<sup id="cite_ref-BlairMitchellBlair_215-1" class="reference"><a href="#cite_note-BlairMitchellBlair-215"><span class="cite-bracket">&#91;</span>215<span class="cite-bracket">&#93;</span></a></sup> <a href="/wiki/Anxiety_disorders" class="mw-redirect" title="Anxiety disorders">Anxiety disorders</a> often co-occur with ASPD, and contrary to assumptions, psychopathy can sometimes be marked by anxiety; this appears to be related to items from Factor 2 but not Factor 1 of the PCL-R.<sup id="cite_ref-Yildirim,_Bariş_O._2015_127-2" class="reference"><a href="#cite_note-Yildirim,_Bariş_O._2015-127"><span class="cite-bracket">&#91;</span>127<span class="cite-bracket">&#93;</span></a></sup> Psychopathy is also associated with <a href="/wiki/Substance_use_disorders" class="mw-redirect" title="Substance use disorders">substance use disorders</a>.<sup id="cite_ref-neumann1_39-2" class="reference"><a href="#cite_note-neumann1-39"><span class="cite-bracket">&#91;</span>39<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-BlairMitchellBlair_215-2" class="reference"><a href="#cite_note-BlairMitchellBlair-215"><span class="cite-bracket">&#91;</span>215<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-Hildebrand_217-1" class="reference"><a href="#cite_note-Hildebrand-217"><span class="cite-bracket">&#91;</span>217<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-219" class="reference"><a href="#cite_note-219"><span class="cite-bracket">&#91;</span>219<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-Kantor_220-0" class="reference"><a href="#cite_note-Kantor-220"><span class="cite-bracket">&#91;</span>220<span class="cite-bracket">&#93;</span></a></sup> </p><p><a href="/wiki/Michael_Fitzgerald_(psychiatrist)" title="Michael Fitzgerald (psychiatrist)">Michael Fitzgerald</a> suggested overlaps between (primary) psychopathy and <a href="/wiki/Asperger_syndrome" title="Asperger syndrome">Asperger syndrome</a> in terms of fearlessness, planning of acts, empathy deficits, callous behaviour, and sometimes superficial charisma.<sup id="cite_ref-221" class="reference"><a href="#cite_note-221"><span class="cite-bracket">&#91;</span>221<span class="cite-bracket">&#93;</span></a></sup> Studies investigating similarities and differences between psychopathy and autism indicate that autism and psychopathy are not part of the same construct. Rather both conditions might co-occur in some individuals.<sup id="cite_ref-222" class="reference"><a href="#cite_note-222"><span class="cite-bracket">&#91;</span>222<span class="cite-bracket">&#93;</span></a></sup> Recent studies indicate that some individuals with an autism diagnosis also show <a href="/wiki/Callous_and_unemotional_traits" title="Callous and unemotional traits">callous and unemotional traits</a> (a risk-factor for developing psychopathy),<sup id="cite_ref-223" class="reference"><a href="#cite_note-223"><span class="cite-bracket">&#91;</span>223<span class="cite-bracket">&#93;</span></a></sup> but are less strongly associated with <a href="/wiki/Conduct_Disorder" class="mw-redirect" title="Conduct Disorder">conduct problems</a>.<sup id="cite_ref-224" class="reference"><a href="#cite_note-224"><span class="cite-bracket">&#91;</span>224<span class="cite-bracket">&#93;</span></a></sup> Likewise, some people with Asperger syndrome have shown correlations with the "unemotional" factor and "behavioural dyscontrol" factor of psychopathy, but not the "interpersonal" factor.<sup id="cite_ref-225" class="reference"><a href="#cite_note-225"><span class="cite-bracket">&#91;</span>225<span class="cite-bracket">&#93;</span></a></sup> </p><p>It has been suggested that psychopathy may be comorbid with several other conditions than these,<sup id="cite_ref-Kantor_220-1" class="reference"><a href="#cite_note-Kantor-220"><span class="cite-bracket">&#91;</span>220<span class="cite-bracket">&#93;</span></a></sup> but limited work on comorbidity has been carried out. This may be partly due to difficulties in using inpatient groups from certain institutions to assess comorbidity, owing to the likelihood of some bias in sample selection.<sup id="cite_ref-BlairMitchellBlair_215-3" class="reference"><a href="#cite_note-BlairMitchellBlair-215"><span class="cite-bracket">&#91;</span>215<span class="cite-bracket">&#93;</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Sex_differences">Sex differences</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Psychopathy&amp;action=edit&amp;section=45" title="Edit section: Sex differences"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Research on psychopathy has largely been done on men and the PCL-R was developed using mainly male criminal samples, raising the question of how well the results apply to women. Men score higher than women on both the PCL-R and the PPI and on both of their main scales. The differences tend to be somewhat larger on the interpersonal-affective scale than on the antisocial scale. Most but not all studies have found broadly similar <a href="/wiki/Factor_analysis" title="Factor analysis">factor structure</a> for men and women.<sup id="cite_ref-gap_11-39" class="reference"><a href="#cite_note-gap-11"><span class="cite-bracket">&#91;</span>11<span class="cite-bracket">&#93;</span></a></sup> </p><p>Many associations with other personality traits are similar, although in one study the antisocial factor was more strongly related with impulsivity in men and more strongly related with <a href="/wiki/Openness_to_experience" title="Openness to experience">openness to experience</a> in women. It has been suggested that psychopathy in men manifest more as an <a href="/wiki/Antisocial_personality_disorder" title="Antisocial personality disorder">antisocial</a> pattern while in women it manifests more as a <a href="/wiki/Histrionic_personality_disorder" title="Histrionic personality disorder">histrionic</a> pattern. Studies on this have shown mixed results. PCL-R scores may be somewhat less predictive of violence and recidivism in women. On the other hand, psychopathy may have a stronger relationship with suicide and possibly internalizing symptoms in women. A suggestion is that psychopathy manifests more as externalizing behaviors in men and more as internalizing behaviors in women.<sup id="cite_ref-gap_11-40" class="reference"><a href="#cite_note-gap-11"><span class="cite-bracket">&#91;</span>11<span class="cite-bracket">&#93;</span></a></sup> Furthermore, one study has suggested substantial gender differences were found in the <a href="/wiki/Etiology" title="Etiology">etiology</a> of psychopathy. For girls, 75% of the <a href="/wiki/Variance" title="Variance">variance</a> in severe <a href="/wiki/Callous_and_unemotional_traits" title="Callous and unemotional traits">callous and unemotional traits</a> was attributable to environmental factors and just 0% of the variance was attributable to genetic factors. In boys, the link was reversed.<sup id="cite_ref-226" class="reference"><a href="#cite_note-226"><span class="cite-bracket">&#91;</span>226<span class="cite-bracket">&#93;</span></a></sup> </p><p>Studies have also found that women in prison score significantly lower on psychopathy than men, with one study reporting only 11 percent of violent females in prison met the psychopathy criteria in comparison to 31 percent of violent males.<sup id="cite_ref-227" class="reference"><a href="#cite_note-227"><span class="cite-bracket">&#91;</span>227<span class="cite-bracket">&#93;</span></a></sup> Other studies have also indicated that high psychopathic females are rare in forensic settings.<sup id="cite_ref-228" class="reference"><a href="#cite_note-228"><span class="cite-bracket">&#91;</span>228<span class="cite-bracket">&#93;</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Management">Management</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Psychopathy&amp;action=edit&amp;section=46" title="Edit section: Management"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading3"><h3 id="Clinical">Clinical</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Psychopathy&amp;action=edit&amp;section=47" title="Edit section: Clinical"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Psychopathy has often been considered untreatable. Its unique characteristics makes it among the most <a href="https://en.wiktionary.org/wiki/refractory" class="extiw" title="wikt:refractory">refractory</a> of <a href="/wiki/Personality_disorder" title="Personality disorder">personality disorders</a>, a class of mental illnesses that are already traditionally considered <a href="/wiki/Personality_disorder#Challenges" title="Personality disorder">difficult to treat</a>.<sup id="cite_ref-Vien2006_229-0" class="reference"><a href="#cite_note-Vien2006-229"><span class="cite-bracket">&#91;</span>229<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-230" class="reference"><a href="#cite_note-230"><span class="cite-bracket">&#91;</span>230<span class="cite-bracket">&#93;</span></a></sup> People with psychopathy are generally <a href="/wiki/Egosyntonic_and_egodystonic" title="Egosyntonic and egodystonic">unmotivated to seek treatment</a> for their condition, and can be uncooperative in therapy.<sup id="cite_ref-kiehlhistoryneuroscience_203-1" class="reference"><a href="#cite_note-kiehlhistoryneuroscience-203"><span class="cite-bracket">&#91;</span>203<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-Vien2006_229-1" class="reference"><a href="#cite_note-Vien2006-229"><span class="cite-bracket">&#91;</span>229<span class="cite-bracket">&#93;</span></a></sup> Attempts to treat psychopathy with the current tools available to psychiatry have been disappointing. Harris and Rice's <i>Handbook of Psychopathy</i> says that there is currently little evidence for a cure or effective treatment for psychopathy; as yet, no <a href="/wiki/Psychiatric_medication" title="Psychiatric medication">pharmacological therapies</a> are known to or have been trialed for alleviating the emotional, interpersonal and moral deficits of psychopathy, and patients with psychopathy who undergo <a href="/wiki/Psychotherapy" title="Psychotherapy">psychotherapy</a> might gain the skills to become more adept at the manipulation and deception of others and be more likely to commit crime.<sup id="cite_ref-Patrick_2006_555–572_231-0" class="reference"><a href="#cite_note-Patrick_2006_555–572-231"><span class="cite-bracket">&#91;</span>231<span class="cite-bracket">&#93;</span></a></sup> Some studies suggest that punishment and <a href="/wiki/Behavior_modification" title="Behavior modification">behavior modification techniques</a> are ineffective at modifying the behavior of psychopathic individuals as they are insensitive to punishment or threat.<sup id="cite_ref-Patrick_2006_555–572_231-1" class="reference"><a href="#cite_note-Patrick_2006_555–572-231"><span class="cite-bracket">&#91;</span>231<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-232" class="reference"><a href="#cite_note-232"><span class="cite-bracket">&#91;</span>232<span class="cite-bracket">&#93;</span></a></sup> These failures have led to a widely pessimistic view on its treatment prospects, a view that is exacerbated by the little research being done into psychopathy compared to the efforts committed to other mental illnesses, which makes it more difficult to gain the understanding of this condition that is necessary to develop effective therapies.<sup id="cite_ref-233" class="reference"><a href="#cite_note-233"><span class="cite-bracket">&#91;</span>233<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-234" class="reference"><a href="#cite_note-234"><span class="cite-bracket">&#91;</span>234<span class="cite-bracket">&#93;</span></a></sup> </p><p>Although the core character deficits of highly psychopathic individuals are likely to be highly incorrigible to the currently available treatment methods, the antisocial and criminal behavior associated with it may be more amenable to management, the management of which being the main aim of therapy programs in correctional settings.<sup id="cite_ref-Vien2006_229-2" class="reference"><a href="#cite_note-Vien2006-229"><span class="cite-bracket">&#91;</span>229<span class="cite-bracket">&#93;</span></a></sup> It has been suggested that the treatments that may be most likely to be effective at reducing overt antisocial and criminal behavior are those that focus on self-interest, emphasizing the tangible, material value of prosocial behavior, with interventions that develop skills to obtain what the patient wants out of life in prosocial rather than antisocial ways.<sup id="cite_ref-Beck_235-0" class="reference"><a href="#cite_note-Beck-235"><span class="cite-bracket">&#91;</span>235<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-Chivers_236-0" class="reference"><a href="#cite_note-Chivers-236"><span class="cite-bracket">&#91;</span>236<span class="cite-bracket">&#93;</span></a></sup> To this end, various therapies have been tried with the aim of reducing the criminal activity of incarcerated offenders with psychopathy, with mixed success.<sup id="cite_ref-Vien2006_229-3" class="reference"><a href="#cite_note-Vien2006-229"><span class="cite-bracket">&#91;</span>229<span class="cite-bracket">&#93;</span></a></sup> As psychopathic individuals are insensitive to sanction, reward-based management, in which small privileges are granted in exchange for good behavior, has been suggested and used to manage their behavior in institutional settings.<sup id="cite_ref-237" class="reference"><a href="#cite_note-237"><span class="cite-bracket">&#91;</span>237<span class="cite-bracket">&#93;</span></a></sup> </p><p>Psychiatric medications may also alleviate co-occurring conditions sometimes associated with psychopathy or with symptoms such as aggression or impulsivity, including <a href="/wiki/Antipsychotic" title="Antipsychotic">antipsychotic</a>, <a href="/wiki/Antidepressant" title="Antidepressant">antidepressant</a> or <a href="/wiki/Mood_stabilizer" title="Mood stabilizer">mood-stabilizing</a> medications, although none have yet been approved by the <a href="/wiki/Food_and_Drug_Administration" title="Food and Drug Administration">FDA</a> for this purpose.<sup id="cite_ref-gap_11-41" class="reference"><a href="#cite_note-gap-11"><span class="cite-bracket">&#91;</span>11<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-Handbook_of_Psychopathy_13-4" class="reference"><a href="#cite_note-Handbook_of_Psychopathy-13"><span class="cite-bracket">&#91;</span>13<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-aspd_statement_16-2" class="reference"><a href="#cite_note-aspd_statement-16"><span class="cite-bracket">&#91;</span>16<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-dsm-5_pocket_guide_238-0" class="reference"><a href="#cite_note-dsm-5_pocket_guide-238"><span class="cite-bracket">&#91;</span>238<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-aspd_meds_239-0" class="reference"><a href="#cite_note-aspd_meds-239"><span class="cite-bracket">&#91;</span>239<span class="cite-bracket">&#93;</span></a></sup> For example, a study found that the antipsychotic <a href="/wiki/Clozapine" title="Clozapine">clozapine</a> may be effective in reducing various behavioral dysfunctions in a sample of high-security hospital inpatients with antisocial personality disorder and psychopathic traits.<sup id="cite_ref-240" class="reference"><a href="#cite_note-240"><span class="cite-bracket">&#91;</span>240<span class="cite-bracket">&#93;</span></a></sup> However, research into the pharmacological treatment of psychopathy and the related condition antisocial personality disorder is minimal, with much of the knowledge in this area being extrapolations based on what is known about <a href="/wiki/Pharmacology" title="Pharmacology">pharmacology</a> in other mental disorders.<sup id="cite_ref-Vien2006_229-4" class="reference"><a href="#cite_note-Vien2006-229"><span class="cite-bracket">&#91;</span>229<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-241" class="reference"><a href="#cite_note-241"><span class="cite-bracket">&#91;</span>241<span class="cite-bracket">&#93;</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Legal">Legal</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Psychopathy&amp;action=edit&amp;section=48" title="Edit section: Legal"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The PCL-R, the PCL:SV, and the PCL:YV are highly regarded and widely used in <a href="/wiki/Criminal_justice" title="Criminal justice">criminal justice</a> settings, particularly in <a href="/wiki/North_America" title="North America">North America</a>. They may be used for risk assessment and for assessing treatment potential and be used as part of the decisions regarding bail, sentence, which prison to use, parole, and regarding whether a youth should be tried as a juvenile or as an adult. There have been several criticisms against its use in legal settings. They include the general criticisms against the PCL-R, the availability of other risk assessment tools which may have advantages, and the excessive pessimism surrounding the prognosis and treatment possibilities of those who are diagnosed with psychopathy.<sup id="cite_ref-gap_11-42" class="reference"><a href="#cite_note-gap-11"><span class="cite-bracket">&#91;</span>11<span class="cite-bracket">&#93;</span></a></sup> </p><p>The interrater <a href="/wiki/Reliability_(statistics)" title="Reliability (statistics)">reliability</a> of the PCL-R can be high when used carefully in research but tend to be poor in applied settings. In particular Factor 1 items are somewhat subjective. In sexually violent predator cases the PCL-R scores given by prosecution experts were consistently higher than those given by defense experts in one study. The scoring may also be influenced by other differences between raters. In one study it was estimated that of the PCL-R variance, about 45% was due to true offender differences, 20% was due to which side the rater testified for, and 30% was due to other rater differences.<sup id="cite_ref-gap_11-43" class="reference"><a href="#cite_note-gap-11"><span class="cite-bracket">&#91;</span>11<span class="cite-bracket">&#93;</span></a></sup> </p><p>To aid a criminal investigation, certain interrogation approaches may be used to exploit and leverage the personality traits of suspects thought to have psychopathy and make them more likely to divulge information.<sup id="cite_ref-:3_21-1" class="reference"><a href="#cite_note-:3-21"><span class="cite-bracket">&#91;</span>21<span class="cite-bracket">&#93;</span></a></sup> </p> <div class="mw-heading mw-heading4"><h4 id="United_Kingdom">United Kingdom</h4><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Psychopathy&amp;action=edit&amp;section=49" title="Edit section: United Kingdom"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The PCL-R score cut-off for a label of psychopathy is 25 out of 40 in the <a href="/wiki/United_Kingdom" title="United Kingdom">United Kingdom</a>, instead of 30 as it is in the <a href="/wiki/United_States" title="United States">United States</a>.<sup id="cite_ref-gap_11-44" class="reference"><a href="#cite_note-gap-11"><span class="cite-bracket">&#91;</span>11<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-Semple_12-1" class="reference"><a href="#cite_note-Semple-12"><span class="cite-bracket">&#91;</span>12<span class="cite-bracket">&#93;</span></a></sup> </p><p>In the United Kingdom, "psychopathic disorder" was legally defined in the Mental Health Act (UK), under MHA1983,<sup id="cite_ref-Semple_12-2" class="reference"><a href="#cite_note-Semple-12"><span class="cite-bracket">&#91;</span>12<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-ukmha_242-0" class="reference"><a href="#cite_note-ukmha-242"><span class="cite-bracket">&#91;</span>242<span class="cite-bracket">&#93;</span></a></sup> as "a persistent disorder or disability of mind (whether or not including significant impairment of intelligence) which results in abnormally aggressive or seriously irresponsible conduct on the part of the person concerned". This term was intended to reflect the presence of a personality disorder in terms of conditions for detention under the Mental Health Act 1983. Amendments to MHA1983 within the <a href="/wiki/Mental_Health_Act_2007" title="Mental Health Act 2007">Mental Health Act 2007</a> abolished the term "psychopathic disorder", with all conditions for detention (e.g. mental illness, personality disorder, etc.) encompassed by the generic term of "mental disorder".<sup id="cite_ref-:4_22-1" class="reference"><a href="#cite_note-:4-22"><span class="cite-bracket">&#91;</span>22<span class="cite-bracket">&#93;</span></a></sup> </p><p>In <a href="/wiki/England" title="England">England</a> and <a href="/wiki/Wales" title="Wales">Wales</a>, the diagnosis of <a href="/wiki/Dissocial_personality_disorder" class="mw-redirect" title="Dissocial personality disorder">dissocial personality disorder</a> is grounds for detention in secure <a href="/wiki/Psychiatric_hospital" title="Psychiatric hospital">psychiatric hospitals</a> under the <a href="/wiki/Mental_Health_Act_1983" title="Mental Health Act 1983">Mental Health Act</a> if they have committed serious crimes, but since such individuals are disruptive to other patients and not responsive to usual treatment methods this alternative to <a href="/wiki/Prison" title="Prison">traditional incarceration</a> is often not used.<sup id="cite_ref-243" class="reference"><a href="#cite_note-243"><span class="cite-bracket">&#91;</span>243<span class="cite-bracket">&#93;</span></a></sup> </p> <div class="mw-heading mw-heading4"><h4 id="United_States">United States</h4><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Psychopathy&amp;action=edit&amp;section=50" title="Edit section: United States"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading5"><h5 id="&quot;Sexual_psychopath&quot;_laws"><span id=".22Sexual_psychopath.22_laws"></span>"Sexual psychopath" laws</h5><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Psychopathy&amp;action=edit&amp;section=51" title="Edit section: &quot;Sexual psychopath&quot; laws"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Starting in the 1930s, before some modern concepts of psychopathy were developed, "sexual psychopath" laws, the term referring broadly to mental illness, were introduced by some states, and by the mid-1960s more than half of the states had such laws. Sexual offenses were considered to be caused by underlying mental illnesses, and it was thought that sex offenders should be treated, in agreement with the general rehabilitative trends at this time. Courts committed sex offenders to a mental health facility for community protection and treatment.<sup id="cite_ref-:5_23-1" class="reference"><a href="#cite_note-:5-23"><span class="cite-bracket">&#91;</span>23<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-JamesThomasFoley_244-0" class="reference"><a href="#cite_note-JamesThomasFoley-244"><span class="cite-bracket">&#91;</span>244<span class="cite-bracket">&#93;</span></a></sup> </p><p>Starting in 1970, many of these laws were modified or abolished in favor of more traditional responses such as imprisonment due to criticism of the "sexual psychopath" concept as lacking scientific evidence, the treatment being ineffective, and predictions of future offending being dubious. There were also a series of cases where persons treated and released committed new sexual offenses. Starting in the 1990s, several states have passed <a href="/wiki/Sexually_violent_predator_laws" title="Sexually violent predator laws">sexually dangerous person laws</a>, including registration, housing restrictions, public notification, mandatory reporting by health care professionals, and civil commitment, which permits indefinite confinement after a sentence has been completed.<sup id="cite_ref-JamesThomasFoley_244-1" class="reference"><a href="#cite_note-JamesThomasFoley-244"><span class="cite-bracket">&#91;</span>244<span class="cite-bracket">&#93;</span></a></sup> Psychopathy measurements may be used in the confinement decision process.<sup id="cite_ref-gap_11-45" class="reference"><a href="#cite_note-gap-11"><span class="cite-bracket">&#91;</span>11<span class="cite-bracket">&#93;</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Prognosis">Prognosis</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Psychopathy&amp;action=edit&amp;section=52" title="Edit section: Prognosis"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The prognosis for psychopathy in forensic and clinical settings is quite poor, with some studies reporting that treatment may worsen the antisocial aspects of psychopathy as measured by <a href="/wiki/Recidivism" title="Recidivism">recidivism</a> rates, though it is noted that one of the frequently cited studies finding increased criminal recidivism after treatment, a 2011 retrospective study of a treatment program in the 1960s, had several serious methodological problems and likely would not be approved of today.<sup id="cite_ref-gap_11-46" class="reference"><a href="#cite_note-gap-11"><span class="cite-bracket">&#91;</span>11<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-kiehlhistoryneuroscience_203-2" class="reference"><a href="#cite_note-kiehlhistoryneuroscience-203"><span class="cite-bracket">&#91;</span>203<span class="cite-bracket">&#93;</span></a></sup> However, some relatively rigorous quasi-experimental studies using more modern treatment methods have found improvements regarding reducing future violent and other criminal behavior, regardless of PCL-R scores, although none were <a href="/wiki/Randomized_controlled_trials" class="mw-redirect" title="Randomized controlled trials">randomized controlled trials</a>. Various other studies have found improvements in risk factors for crime such as substance abuse. No study has yet examined whether the personality traits that form the core character disturbances of psychopathy could be changed by such treatments.<sup id="cite_ref-gap_11-47" class="reference"><a href="#cite_note-gap-11"><span class="cite-bracket">&#91;</span>11<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-polaschek2013_245-0" class="reference"><a href="#cite_note-polaschek2013-245"><span class="cite-bracket">&#91;</span>245<span class="cite-bracket">&#93;</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Frequency">Frequency</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Psychopathy&amp;action=edit&amp;section=53" title="Edit section: Frequency"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>A 2008 study using the PCL:SV found that 1.2% of a US sample scored 13 or more out of 24, indicating "potential psychopathy". The scores correlated significantly with violence, alcohol use, and lower intelligence.<sup id="cite_ref-neumann1_39-3" class="reference"><a href="#cite_note-neumann1-39"><span class="cite-bracket">&#91;</span>39<span class="cite-bracket">&#93;</span></a></sup> A 2009 British study by Coid et al., also using the PCL:SV, reported a community prevalence of 0.6% scoring 13 or more. However, if the scoring was adjusted to the recommended 18 or more,<sup id="cite_ref-cooke_246-0" class="reference"><a href="#cite_note-cooke-246"><span class="cite-bracket">&#91;</span>246<span class="cite-bracket">&#93;</span></a></sup> this would have left the prevalence closer to 0.1%.<sup id="cite_ref-:6_24-1" class="reference"><a href="#cite_note-:6-24"><span class="cite-bracket">&#91;</span>24<span class="cite-bracket">&#93;</span></a></sup><sup class="noprint Inline-Template" style="white-space:nowrap;">&#91;<i><a href="/wiki/Wikipedia:Reliable_sources" title="Wikipedia:Reliable sources"><span title="The material near this tag may rely on an unreliable source. (August 2022)">unreliable source?</span></a></i>&#93;</sup> The scores correlated with younger age, male gender, suicide attempts, violence, imprisonment, homelessness, drug dependence, personality disorders (histrionic, borderline and antisocial), and panic and obsessive–compulsive disorders.<sup id="cite_ref-coid_247-0" class="reference"><a href="#cite_note-coid-247"><span class="cite-bracket">&#91;</span>247<span class="cite-bracket">&#93;</span></a></sup> </p><p>Psychopathy has a much higher prevalence in the convicted and incarcerated population, where it is thought that an estimated 15–25% of prisoners qualify for the diagnosis.<sup id="cite_ref-pcl-r_119-1" class="reference"><a href="#cite_note-pcl-r-119"><span class="cite-bracket">&#91;</span>119<span class="cite-bracket">&#93;</span></a></sup> A study on a sample of inmates in the UK found that 7.7% of the inmates interviewed met the PCL-R cut-off of 30 for a diagnosis of psychopathy.<sup id="cite_ref-englandandwales2009_37-2" class="reference"><a href="#cite_note-englandandwales2009-37"><span class="cite-bracket">&#91;</span>37<span class="cite-bracket">&#93;</span></a></sup> A study on a sample of inmates in Iran using the PCL:SV found a prevalence of 23% scoring 18 or more.<sup id="cite_ref-:7_25-1" class="reference"><a href="#cite_note-:7-25"><span class="cite-bracket">&#91;</span>25<span class="cite-bracket">&#93;</span></a></sup> A study by Nathan Brooks from <a href="/wiki/Bond_University" title="Bond University">Bond University</a> found that around one in five corporate bosses display clinically significant psychopathic traits - a proportion similar to that among prisoners.<sup id="cite_ref-:9_27-1" class="reference"><a href="#cite_note-:9-27"><span class="cite-bracket">&#91;</span>27<span class="cite-bracket">&#93;</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Society_and_culture">Society and culture</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Psychopathy&amp;action=edit&amp;section=54" title="Edit section: Society and culture"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading3"><h3 id="In_the_workplace">In the workplace</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Psychopathy&amp;action=edit&amp;section=55" title="Edit section: In the workplace"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236090951"><div role="note" class="hatnote navigation-not-searchable">Main article: <a href="/wiki/Psychopathy_in_the_workplace" title="Psychopathy in the workplace">Psychopathy in the workplace</a></div> <p>There is limited research on psychopathy in the general work populace, in part because the PCL-R includes antisocial behavior as a significant core factor (obtaining a PCL-R score above the threshold is unlikely without having significant scores on the antisocial-lifestyle factor) and does not include positive adjustment characteristics, and most researchers have studied psychopathy in incarcerated criminals, a relatively accessible population of research subjects.<sup id="cite_ref-Disordered_personalities_at_work_248-0" class="reference"><a href="#cite_note-Disordered_personalities_at_work-248"><span class="cite-bracket">&#91;</span>248<span class="cite-bracket">&#93;</span></a></sup> </p><p>However, psychologists Fritzon and Board, in their study comparing the incidence of personality disorders in business executives against criminals detained in a mental hospital, found that the profiles of some senior business managers contained significant elements of personality disorders, including those referred to as the "emotional components", or interpersonal-affective traits, of psychopathy. Factors such as boldness, disinhibition, and meanness as defined in the triarchic model, in combination with other advantages such as a favorable upbringing and high intelligence, are thought to correlate with stress immunity and stability, and may contribute to this particular expression.<sup id="cite_ref-Disordered_personalities_at_work_248-1" class="reference"><a href="#cite_note-Disordered_personalities_at_work-248"><span class="cite-bracket">&#91;</span>248<span class="cite-bracket">&#93;</span></a></sup> Such individuals are sometimes referred to as "successful psychopaths" or "corporate psychopaths" and they may not always have extensive histories of traditional criminal or antisocial behavior characteristic of the traditional conceptualization of psychopathy.<sup id="cite_ref-Successful_and_unsuccessful_63-1" class="reference"><a href="#cite_note-Successful_and_unsuccessful-63"><span class="cite-bracket">&#91;</span>63<span class="cite-bracket">&#93;</span></a></sup> Robert Hare claims that the prevalence of psychopathic traits is higher in the business world than in the general population, reporting that while about 1% of the general population meet the clinical criteria for psychopathy, figures of around 3–4% have been cited for more senior positions in business.<sup id="cite_ref-gap_11-48" class="reference"><a href="#cite_note-gap-11"><span class="cite-bracket">&#91;</span>11<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-Hare,_R_1994,_pp._54_249-0" class="reference"><a href="#cite_note-Hare,_R_1994,_pp._54-249"><span class="cite-bracket">&#91;</span>249<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-Snakes_250-0" class="reference"><a href="#cite_note-Snakes-250"><span class="cite-bracket">&#91;</span>250<span class="cite-bracket">&#93;</span></a></sup><sup class="noprint Inline-Template" style="white-space:nowrap;">&#91;<i><a href="/wiki/Wikipedia:Citing_sources" title="Wikipedia:Citing sources"><span title="This citation requires a reference to the specific page or range of pages in which the material appears. (July 2017)">page&#160;needed</span></a></i>&#93;</sup> Hare considers newspaper tycoon <a href="/wiki/Robert_Maxwell" title="Robert Maxwell">Robert Maxwell</a> to have been a strong candidate as a "corporate psychopath".<sup id="cite_ref-Conscience_126-1" class="reference"><a href="#cite_note-Conscience-126"><span class="cite-bracket">&#91;</span>126<span class="cite-bracket">&#93;</span></a></sup> </p><p>Academics on this subject believe that although psychopathy is manifested in only a small percentage of workplace staff, it is more common at higher levels of corporate organizations, and its negative effects (for example, increased <a href="/wiki/Workplace_bullying" title="Workplace bullying">bullying</a>, <a href="/wiki/Workplace_conflict" class="mw-redirect" title="Workplace conflict">conflict</a>, <a href="/wiki/Occupational_stress" title="Occupational stress">stress</a>, <a href="/wiki/Staff_turnover" class="mw-redirect" title="Staff turnover">staff turnover</a>, <a href="/wiki/Absenteeism" title="Absenteeism">absenteeism</a>, reduction in <a href="/wiki/Productivity" title="Productivity">productivity</a>) often causes a ripple effect throughout an organization, setting the tone for an entire <a href="/wiki/Corporate_culture" class="mw-redirect" title="Corporate culture">corporate culture</a>. Employees with the disorder are self-serving opportunists, and may disadvantage their own organizations to further their own interests.<sup id="cite_ref-Boddy1_251-0" class="reference"><a href="#cite_note-Boddy1-251"><span class="cite-bracket">&#91;</span>251<span class="cite-bracket">&#93;</span></a></sup><sup class="noprint Inline-Template" style="white-space:nowrap;">&#91;<i><a href="/wiki/Wikipedia:Citing_sources" title="Wikipedia:Citing sources"><span title="This citation requires a reference to the specific page or range of pages in which the material appears. (July 2017)">page&#160;needed</span></a></i>&#93;</sup> They may be <a href="/wiki/Superficial_charm" title="Superficial charm">charming</a> to staff above their level in the workplace hierarchy, aiding their ascent through the organization, but abusive to staff below their level, and can do enormous damage when they are positioned in senior management roles.<sup id="cite_ref-Boddy2_252-0" class="reference"><a href="#cite_note-Boddy2-252"><span class="cite-bracket">&#91;</span>252<span class="cite-bracket">&#93;</span></a></sup><sup class="noprint Inline-Template" style="white-space:nowrap;">&#91;<i><a href="/wiki/Wikipedia:Citing_sources" title="Wikipedia:Citing sources"><span title="This citation requires a reference to the specific page or range of pages in which the material appears. (July 2017)">page&#160;needed</span></a></i>&#93;</sup><sup id="cite_ref-Walker_253-0" class="reference"><a href="#cite_note-Walker-253"><span class="cite-bracket">&#91;</span>253<span class="cite-bracket">&#93;</span></a></sup><sup class="noprint Inline-Template" style="white-space:nowrap;">&#91;<i><a href="/wiki/Wikipedia:Citing_sources" title="Wikipedia:Citing sources"><span title="This citation requires a reference to the specific page or range of pages in which the material appears. (July 2017)">page&#160;needed</span></a></i>&#93;</sup> Psychopathy as measured by the PCL-R is associated with lower performance appraisals among corporate professionals.<sup id="cite_ref-Babiak_254-0" class="reference"><a href="#cite_note-Babiak-254"><span class="cite-bracket">&#91;</span>254<span class="cite-bracket">&#93;</span></a></sup> The psychologist <a href="/wiki/Oliver_James_(psychologist)" title="Oliver James (psychologist)">Oliver James</a> identifies psychopathy as one of the <a href="/wiki/Dark_triad" title="Dark triad">dark triadic</a> traits in the workplace, the others being narcissism and Machiavellianism, which, like psychopathy, can have negative consequences.<sup id="cite_ref-255" class="reference"><a href="#cite_note-255"><span class="cite-bracket">&#91;</span>255<span class="cite-bracket">&#93;</span></a></sup> </p><p>According to a study from the University of Notre Dame published in the <i>Journal of Business Ethics,</i> psychopaths have a natural advantage in workplaces overrun by abusive supervision, and are more likely to thrive under abusive bosses, being more resistant to stress, including interpersonal abuse, and having less of a need for positive relationships than others.<sup id="cite_ref-256" class="reference"><a href="#cite_note-256"><span class="cite-bracket">&#91;</span>256<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-:10_28-1" class="reference"><a href="#cite_note-:10-28"><span class="cite-bracket">&#91;</span>28<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-:11_29-1" class="reference"><a href="#cite_note-:11-29"><span class="cite-bracket">&#91;</span>29<span class="cite-bracket">&#93;</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="In_fiction">In fiction</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Psychopathy&amp;action=edit&amp;section=56" title="Edit section: In fiction"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236090951"><div role="note" class="hatnote navigation-not-searchable">Main article: <a href="/wiki/Fictional_portrayals_of_psychopaths" title="Fictional portrayals of psychopaths">Fictional portrayals of psychopaths</a></div> <p>Characters with psychopathy or <a href="#Sociopathy">sociopathy</a> are some of the most notorious characters in film and literature, but their <a href="/wiki/Characterizations" class="mw-redirect" title="Characterizations">characterizations</a> may only vaguely or partly relate to the concept of psychopathy as it is defined in <a href="/wiki/Psychiatry" title="Psychiatry">psychiatry</a>, <a href="/wiki/Criminology" title="Criminology">criminology</a>, and research. The character may be identified as having psychopathy within the fictional work itself, by its creators, or from the opinions of audiences and <a href="/wiki/Critics" class="mw-redirect" title="Critics">critics</a>, and may be based on undefined popular stereotypes of psychopathy.<sup id="cite_ref-:8_26-1" class="reference"><a href="#cite_note-:8-26"><span class="cite-bracket">&#91;</span>26<span class="cite-bracket">&#93;</span></a></sup> Characters with psychopathic traits have appeared in <a href="/wiki/Greek_mythology" title="Greek mythology">Greek</a> and <a href="/wiki/Roman_mythology" title="Roman mythology">Roman mythology</a>, <a href="/wiki/Bible" title="Bible">Bible</a> stories, and some of <a href="/wiki/Shakespeare" class="mw-redirect" title="Shakespeare">Shakespeare</a>'s works.<sup id="cite_ref-:1_114-1" class="reference"><a href="#cite_note-:1-114"><span class="cite-bracket">&#91;</span>114<span class="cite-bracket">&#93;</span></a></sup> </p><p>Such characters are often portrayed in an <a href="/wiki/Exaggerated" class="mw-redirect" title="Exaggerated">exaggerated</a> fashion and typically in the role of a <a href="/wiki/Villain" title="Villain">villain</a> or <a href="/wiki/Antihero" title="Antihero">antihero</a>, where the general characteristics and stereotypes associated with psychopathy are useful to facilitate conflict and danger. Because the definitions, criteria, and popular conceptions throughout <a href="/wiki/History_of_psychopathy" title="History of psychopathy">its history</a> have varied over the years and continue to change even now, many of the characters characterized as psychopathic in notable works at the time of publication may no longer fit the current definition and conception of psychopathy. There are several <a href="/wiki/Archetypal" class="mw-redirect" title="Archetypal">archetypal</a> images of psychopathy in both lay and professional accounts which only partly overlap and can involve contradictory traits: the charming <a href="/wiki/Con_artist" class="mw-redirect" title="Con artist">con artist</a>, the deranged <a href="/wiki/Serial_killer" title="Serial killer">serial killer</a> and <a href="/wiki/Mass_murder" title="Mass murder">mass murderer</a>, the <a href="#In_the_workplace">callous and scheming businessperson</a>, and the chronic low-level <a href="/wiki/Crime" title="Crime">offender</a> and <a href="/wiki/Juvenile_delinquency" title="Juvenile delinquency">juvenile delinquent</a>. The public concept reflects some combination of fear of a mythical <a href="/wiki/Bogeyman" title="Bogeyman">bogeyman</a>, the disgust and intrigue surrounding <a href="/wiki/Evil" title="Evil">evil</a>, and fascination and sometimes perhaps <a href="/wiki/Envy" title="Envy">envy</a> of people who might appear to go through life without <a href="https://en.wiktionary.org/wiki/attachment#English" class="extiw" title="wiktionary:attachment">attachments</a> and unencumbered by <a href="/wiki/Guilt_(emotion)" title="Guilt (emotion)">guilt</a>, <a href="/wiki/Anguish" title="Anguish">anguish</a> or <a href="/wiki/Emotional_security" class="mw-redirect" title="Emotional security">insecurity</a>.<sup id="cite_ref-gap_11-49" class="reference"><a href="#cite_note-gap-11"><span class="cite-bracket">&#91;</span>11<span class="cite-bracket">&#93;</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="See_also">See also</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Psychopathy&amp;action=edit&amp;section=57" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Collective_narcissism" title="Collective narcissism">Collective narcissism</a></li> <li><a href="/wiki/Moral_psychology" title="Moral psychology">Moral psychology</a></li> <li><a href="/wiki/Serial_rapist" title="Serial rapist">Serial rapist</a></li> <li><a href="/wiki/Violence_and_autism" title="Violence and autism">Violence and autism</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Psychopathy&amp;action=edit&amp;section=58" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist"> <div class="mw-references-wrap mw-references-columns"><ol class="references"> <li id="cite_note-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-1">^</a></b></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.healthyplace.com/personality-disorders/psychopath/psychopathic-personality-and-how-it-develops">"Psychopathic Personality and How It Develops | HealthyPlace"</a>. <i>www.healthyplace.com</i><span class="reference-accessdate">. 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<i>Journal of Abnormal Psychology</i>. <b>130</b> (5): 550–561. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1037%2Fabn0000675">10.1037/abn0000675</a>. <a href="/wiki/Hdl_(identifier)" class="mw-redirect" title="Hdl (identifier)">hdl</a>:<span class="id-lock-free" title="Freely accessible"><a rel="nofollow" class="external text" href="https://hdl.handle.net/2066%2F236779">2066/236779</a></span>. <a href="/wiki/ISSN_(identifier)" class="mw-redirect" title="ISSN (identifier)">ISSN</a>&#160;<a rel="nofollow" class="external text" href="https://search.worldcat.org/issn/1939-1846">1939-1846</a>. <a href="/wiki/PMID_(identifier)" class="mw-redirect" title="PMID (identifier)">PMID</a>&#160;<a rel="nofollow" class="external text" href="https://pubmed.ncbi.nlm.nih.gov/34472890">34472890</a>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=article&amp;rft.jtitle=Journal+of+Abnormal+Psychology&amp;rft.atitle=Moral+strategies+and+psychopathic+traits&amp;rft.volume=130&amp;rft.issue=5&amp;rft.pages=550-561&amp;rft.date=2021-07&amp;rft_id=info%3Ahdl%2F2066%2F236779&amp;rft.issn=1939-1846&amp;rft_id=info%3Apmid%2F34472890&amp;rft_id=info%3Adoi%2F10.1037%2Fabn0000675&amp;rft.aulast=Driessen&amp;rft.aufirst=Josi+M.+A.&amp;rft.au=van+Baar%2C+Jeroen+M.&amp;rft.au=Sanfey%2C+Alan+G.&amp;rft.au=Glennon%2C+Jeffrey+C.&amp;rft.au=Brazil%2C+Inti+A.&amp;rft_id=https%3A%2F%2Fpubmed.ncbi.nlm.nih.gov%2F34472890%2F&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3APsychopathy" class="Z3988"></span></span> </li> <li id="cite_note-4"><span class="mw-cite-backlink"><b><a href="#cite_ref-4">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFSchönthalerDalknerSchwalsbergerReininghaus2023" class="citation journal cs1">Schönthaler EM, Dalkner N, Schwalsberger K, Reininghaus EZ, Reininghaus B (2023-03-27). <a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10084668">"Psychopathic personality traits stress immunity and social potency moderate the relationship between emotional competence and cognitive functions in depression"</a>. <i>Frontiers in Psychiatry</i>. <b>14</b>: 1061642. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<span class="id-lock-free" title="Freely accessible"><a rel="nofollow" class="external text" href="https://doi.org/10.3389%2Ffpsyt.2023.1061642">10.3389/fpsyt.2023.1061642</a></span>. <a href="/wiki/ISSN_(identifier)" class="mw-redirect" title="ISSN (identifier)">ISSN</a>&#160;<a rel="nofollow" class="external text" href="https://search.worldcat.org/issn/1664-0640">1664-0640</a>. <a href="/wiki/PMC_(identifier)" class="mw-redirect" title="PMC (identifier)">PMC</a>&#160;<span class="id-lock-free" title="Freely accessible"><a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10084668">10084668</a></span>. <a href="/wiki/PMID_(identifier)" class="mw-redirect" title="PMID (identifier)">PMID</a>&#160;<a rel="nofollow" class="external text" href="https://pubmed.ncbi.nlm.nih.gov/37051168">37051168</a>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=article&amp;rft.jtitle=Frontiers+in+Psychiatry&amp;rft.atitle=Psychopathic+personality+traits+stress+immunity+and+social+potency+moderate+the+relationship+between+emotional+competence+and+cognitive+functions+in+depression&amp;rft.volume=14&amp;rft.pages=1061642&amp;rft.date=2023-03-27&amp;rft_id=https%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fpmc%2Farticles%2FPMC10084668%23id-name%3DPMC&amp;rft.issn=1664-0640&amp;rft_id=info%3Apmid%2F37051168&amp;rft_id=info%3Adoi%2F10.3389%2Ffpsyt.2023.1061642&amp;rft.aulast=Sch%C3%B6nthaler&amp;rft.aufirst=Elena+M.+D.&amp;rft.au=Dalkner%2C+Nina&amp;rft.au=Schwalsberger%2C+Karin&amp;rft.au=Reininghaus%2C+Eva+Z.&amp;rft.au=Reininghaus%2C+Bernd&amp;rft_id=https%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fpmc%2Farticles%2FPMC10084668&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3APsychopathy" class="Z3988"></span></span> </li> <li id="cite_note-triarchic_model-5"><span class="mw-cite-backlink">^ <a href="#cite_ref-triarchic_model_5-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-triarchic_model_5-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-triarchic_model_5-2"><sup><i><b>c</b></i></sup></a> <a href="#cite_ref-triarchic_model_5-3"><sup><i><b>d</b></i></sup></a> <a href="#cite_ref-triarchic_model_5-4"><sup><i><b>e</b></i></sup></a> <a href="#cite_ref-triarchic_model_5-5"><sup><i><b>f</b></i></sup></a> <a href="#cite_ref-triarchic_model_5-6"><sup><i><b>g</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFPatrickFowlesKrueger2009" class="citation journal cs1">Patrick C, Fowles D, Krueger R (August 2009). "Triarchic conceptualization of psychopathy: Developmental origins of disinhibition, boldness, and meanness". <i><a href="/wiki/Development_and_Psychopathology" title="Development and Psychopathology">Development and Psychopathology</a></i>. <b>21</b> (3). Cambridge, England: <a href="/wiki/Cambridge_University_Press" title="Cambridge University Press">Cambridge University Press</a>: 913–938. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1017%2FS0954579409000492">10.1017/S0954579409000492</a>. <a href="/wiki/PMID_(identifier)" class="mw-redirect" title="PMID (identifier)">PMID</a>&#160;<a rel="nofollow" class="external text" href="https://pubmed.ncbi.nlm.nih.gov/19583890">19583890</a>. <a href="/wiki/S2CID_(identifier)" class="mw-redirect" title="S2CID (identifier)">S2CID</a>&#160;<a rel="nofollow" class="external text" href="https://api.semanticscholar.org/CorpusID:6105750">6105750</a>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=article&amp;rft.jtitle=Development+and+Psychopathology&amp;rft.atitle=Triarchic+conceptualization+of+psychopathy%3A+Developmental+origins+of+disinhibition%2C+boldness%2C+and+meanness&amp;rft.volume=21&amp;rft.issue=3&amp;rft.pages=913-938&amp;rft.date=2009-08&amp;rft_id=https%3A%2F%2Fapi.semanticscholar.org%2FCorpusID%3A6105750%23id-name%3DS2CID&amp;rft_id=info%3Apmid%2F19583890&amp;rft_id=info%3Adoi%2F10.1017%2FS0954579409000492&amp;rft.aulast=Patrick&amp;rft.aufirst=Christopher&amp;rft.au=Fowles%2C+Don&amp;rft.au=Krueger%2C+Robert&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3APsychopathy" class="Z3988"></span></span> </li> <li id="cite_note-Without_Conscience-6"><span class="mw-cite-backlink">^ <a href="#cite_ref-Without_Conscience_6-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-Without_Conscience_6-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-Without_Conscience_6-2"><sup><i><b>c</b></i></sup></a> <a href="#cite_ref-Without_Conscience_6-3"><sup><i><b>d</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFHare1999" class="citation book cs1"><a href="/wiki/Robert_D._Hare" title="Robert D. Hare">Hare RD</a> (1999). <a rel="nofollow" class="external text" href="https://archive.org/details/withoutconscienc00hare"><i>Without Conscience: The Disturbing World of the Psychopaths Among Us</i></a>. New York: Guilford Press. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a>&#160;<a href="/wiki/Special:BookSources/978-1-57230-451-2" title="Special:BookSources/978-1-57230-451-2"><bdi>978-1-57230-451-2</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=book&amp;rft.btitle=Without+Conscience%3A+The+Disturbing+World+of+the+Psychopaths+Among+Us&amp;rft.place=New+York&amp;rft.pub=Guilford+Press&amp;rft.date=1999&amp;rft.isbn=978-1-57230-451-2&amp;rft.aulast=Hare&amp;rft.aufirst=Robert+D.&amp;rft_id=https%3A%2F%2Farchive.org%2Fdetails%2Fwithoutconscienc00hare&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3APsychopathy" class="Z3988"></span><sup class="noprint Inline-Template" style="white-space:nowrap;">&#91;<i><a href="/wiki/Wikipedia:Citing_sources" title="Wikipedia:Citing sources"><span title="This citation requires a reference to the specific page or range of pages in which the material appears. (September 2013)">page&#160;needed</span></a></i>&#93;</sup></span> </li> <li id="cite_note-:19-7"><span class="mw-cite-backlink"><b><a href="#cite_ref-:19_7-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFStoneBrucato2019" class="citation book cs1">Stone MH, Brucato G (2019). <i>The New Evil: Understanding the Emergence of Modern Violent Crime</i>. Amherst, New York: <a href="/wiki/Prometheus_Books" title="Prometheus Books">Prometheus Books</a>. pp.&#160;48–52. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a>&#160;<a href="/wiki/Special:BookSources/978-1-63388-532-5" title="Special:BookSources/978-1-63388-532-5"><bdi>978-1-63388-532-5</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=book&amp;rft.btitle=The+New+Evil%3A+Understanding+the+Emergence+of+Modern+Violent+Crime&amp;rft.place=Amherst%2C+New+York&amp;rft.pages=48-52&amp;rft.pub=Prometheus+Books&amp;rft.date=2019&amp;rft.isbn=978-1-63388-532-5&amp;rft.aulast=Stone&amp;rft.aufirst=Michael+H.&amp;rft.au=Brucato%2C+Gary&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3APsychopathy" class="Z3988"></span></span> </li> <li id="cite_note-8"><span class="mw-cite-backlink"><b><a href="#cite_ref-8">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFSmithLilienfeldCoffeyDabbs2013" class="citation journal cs1">Smith SF, Lilienfeld SO, Coffey K, Dabbs JM (October 2013). <a rel="nofollow" class="external text" href="https://doi.org/10.1016/j.jrp.2013.05.006">"Are psychopaths and heroes twigs off the same branch? Evidence from college, community, and presidential samples"</a>. <i>Journal of Research in Personality</i>. <b>47</b> (5): 634–646. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1016%2Fj.jrp.2013.05.006">10.1016/j.jrp.2013.05.006</a>. <a href="/wiki/ISSN_(identifier)" class="mw-redirect" title="ISSN (identifier)">ISSN</a>&#160;<a rel="nofollow" class="external text" href="https://search.worldcat.org/issn/0092-6566">0092-6566</a>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=article&amp;rft.jtitle=Journal+of+Research+in+Personality&amp;rft.atitle=Are+psychopaths+and+heroes+twigs+off+the+same+branch%3F+Evidence+from+college%2C+community%2C+and+presidential+samples&amp;rft.volume=47&amp;rft.issue=5&amp;rft.pages=634-646&amp;rft.date=2013-10&amp;rft_id=info%3Adoi%2F10.1016%2Fj.jrp.2013.05.006&amp;rft.issn=0092-6566&amp;rft.aulast=Smith&amp;rft.aufirst=Sarah+Francis&amp;rft.au=Lilienfeld%2C+Scott+O.&amp;rft.au=Coffey%2C+Karly&amp;rft.au=Dabbs%2C+James+M.&amp;rft_id=https%3A%2F%2Fdoi.org%2F10.1016%2Fj.jrp.2013.05.006&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3APsychopathy" class="Z3988"></span></span> </li> <li id="cite_note-9"><span class="mw-cite-backlink"><b><a href="#cite_ref-9">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFAndersonSellbomWygantSalekin2014" class="citation journal cs1">Anderson JL, Sellbom M, Wygant DB, Salekin RT, Krueger RF (October 2014). <a rel="nofollow" class="external text" href="https://pubmed.ncbi.nlm.nih.gov/24689766/">"Examining the associations between DSM-5 section III antisocial personality disorder traits and psychopathy in community and university samples"</a>. <i>Journal of Personality Disorders</i>. <b>28</b> (5): 675–697. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1521%2Fpedi_2014_28_134">10.1521/pedi_2014_28_134</a>. <a href="/wiki/ISSN_(identifier)" class="mw-redirect" title="ISSN (identifier)">ISSN</a>&#160;<a rel="nofollow" class="external text" href="https://search.worldcat.org/issn/1943-2763">1943-2763</a>. <a href="/wiki/PMID_(identifier)" class="mw-redirect" title="PMID (identifier)">PMID</a>&#160;<a rel="nofollow" class="external text" href="https://pubmed.ncbi.nlm.nih.gov/24689766">24689766</a>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=article&amp;rft.jtitle=Journal+of+Personality+Disorders&amp;rft.atitle=Examining+the+associations+between+DSM-5+section+III+antisocial+personality+disorder+traits+and+psychopathy+in+community+and+university+samples&amp;rft.volume=28&amp;rft.issue=5&amp;rft.pages=675-697&amp;rft.date=2014-10&amp;rft.issn=1943-2763&amp;rft_id=info%3Apmid%2F24689766&amp;rft_id=info%3Adoi%2F10.1521%2Fpedi_2014_28_134&amp;rft.aulast=Anderson&amp;rft.aufirst=Jaime+L.&amp;rft.au=Sellbom%2C+Martin&amp;rft.au=Wygant%2C+Dustin+B.&amp;rft.au=Salekin%2C+Randall+T.&amp;rft.au=Krueger%2C+Robert+F.&amp;rft_id=https%3A%2F%2Fpubmed.ncbi.nlm.nih.gov%2F24689766%2F&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3APsychopathy" class="Z3988"></span></span> </li> <li id="cite_note-Partridge1930-10"><span class="mw-cite-backlink"><b><a href="#cite_ref-Partridge1930_10-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFPartridge1930" class="citation journal cs1"><a href="/wiki/George_E._Partridge" title="George E. 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Oxford, England: <a href="/wiki/Oxford_University_Press" title="Oxford University Press">Oxford University Press</a>. pp.&#160;448–9. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a>&#160;<a href="/wiki/Special:BookSources/978-0-19-852783-1" title="Special:BookSources/978-0-19-852783-1"><bdi>978-0-19-852783-1</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=book&amp;rft.btitle=The+Oxford+Handbook+of+Psychiatry&amp;rft.place=Oxford%2C+England&amp;rft.pages=448-9&amp;rft.pub=Oxford+University+Press&amp;rft.date=2005&amp;rft.isbn=978-0-19-852783-1&amp;rft.aulast=Semple&amp;rft.aufirst=David&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3APsychopathy" class="Z3988"></span></span> </li> <li id="cite_note-Handbook_of_Psychopathy-13"><span class="mw-cite-backlink">^ <a href="#cite_ref-Handbook_of_Psychopathy_13-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-Handbook_of_Psychopathy_13-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-Handbook_of_Psychopathy_13-2"><sup><i><b>c</b></i></sup></a> <a href="#cite_ref-Handbook_of_Psychopathy_13-3"><sup><i><b>d</b></i></sup></a> <a href="#cite_ref-Handbook_of_Psychopathy_13-4"><sup><i><b>e</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFPatrick2005" class="citation book cs1">Patrick C (2005). <i>Handbook of Psychopathy</i>. <a href="/wiki/Guilford_Press" title="Guilford Press">Guilford Press</a>. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a>&#160;<a href="/wiki/Special:BookSources/978-1-60623-804-2" title="Special:BookSources/978-1-60623-804-2"><bdi>978-1-60623-804-2</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=book&amp;rft.btitle=Handbook+of+Psychopathy&amp;rft.pub=Guilford+Press&amp;rft.date=2005&amp;rft.isbn=978-1-60623-804-2&amp;rft.aulast=Patrick&amp;rft.aufirst=Christopher&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3APsychopathy" class="Z3988"></span><sup class="noprint Inline-Template" style="white-space:nowrap;">&#91;<i><a href="/wiki/Wikipedia:Citing_sources" title="Wikipedia:Citing sources"><span title="This citation requires a reference to the specific page or range of pages in which the material appears. 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Hare">Hare RD</a>, Hart SD, Harpur TJ (1991). <a rel="nofollow" class="external text" href="https://philpapers.org/rec/HARPAT-27">"Psychopathy and the <i>DSM-IV</i> criteria for antisocial personality disorder"</a>. <i><a href="/wiki/Journal_of_Abnormal_Psychology" title="Journal of Abnormal Psychology">Journal of Abnormal Psychology</a></i>. <b>100</b> (3): 391–8. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1037%2F0021-843X.100.3.391">10.1037/0021-843X.100.3.391</a>. <a href="/wiki/PMID_(identifier)" class="mw-redirect" title="PMID (identifier)">PMID</a>&#160;<a rel="nofollow" class="external text" href="https://pubmed.ncbi.nlm.nih.gov/1918618">1918618</a>. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20200806172317/https://philpapers.org/rec/HARPAT-27">Archived</a> from the original on 2020-08-06<span class="reference-accessdate">. Retrieved <span class="nowrap">2018-10-02</span></span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=article&amp;rft.jtitle=Journal+of+Abnormal+Psychology&amp;rft.atitle=Psychopathy+and+the+DSM-IV+criteria+for+antisocial+personality+disorder&amp;rft.volume=100&amp;rft.issue=3&amp;rft.pages=391-8&amp;rft.date=1991&amp;rft_id=info%3Adoi%2F10.1037%2F0021-843X.100.3.391&amp;rft_id=info%3Apmid%2F1918618&amp;rft.aulast=Hare&amp;rft.aufirst=Robert+D.&amp;rft.au=Hart%2C+Stephen+D.&amp;rft.au=Harpur%2C+Timothy+J.&amp;rft_id=https%3A%2F%2Fphilpapers.org%2Frec%2FHARPAT-27&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3APsychopathy" class="Z3988"></span></span> </li> <li id="cite_note-aspd_statement-16"><span class="mw-cite-backlink">^ <a href="#cite_ref-aspd_statement_16-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-aspd_statement_16-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-aspd_statement_16-2"><sup><i><b>c</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFAndrade2009" class="citation book cs1">Andrade J (23 Mar 2009). <a rel="nofollow" class="external text" href="https://books.google.com/books?id=_zxz3XqE8MkC"><i>Handbook of Violence Risk Assessment and Treatment: New Approaches for Mental Health Professionals</i></a>. New York City: <a href="/wiki/Springer_Publishing" title="Springer Publishing">Springer Publishing</a> Company. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a>&#160;<a href="/wiki/Special:BookSources/978-0-8261-9904-1" title="Special:BookSources/978-0-8261-9904-1"><bdi>978-0-8261-9904-1</bdi></a>. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20210125181730/https://books.google.com/books?id=_zxz3XqE8MkC">Archived</a> from the original on 25 January 2021<span class="reference-accessdate">. Retrieved <span class="nowrap">January 5,</span> 2014</span> &#8211; via <a href="/wiki/Google_Books" title="Google Books">Google Books</a>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=book&amp;rft.btitle=Handbook+of+Violence+Risk+Assessment+and+Treatment%3A+New+Approaches+for+Mental+Health+Professionals&amp;rft.place=New+York+City&amp;rft.pub=Springer+Publishing+Company&amp;rft.date=2009-03-23&amp;rft.isbn=978-0-8261-9904-1&amp;rft.aulast=Andrade&amp;rft.aufirst=Joel&amp;rft_id=https%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3D_zxz3XqE8MkC&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3APsychopathy" class="Z3988"></span></span> </li> <li id="cite_note-Hare_Psychopathy_Checklist-17"><span class="mw-cite-backlink">^ <a href="#cite_ref-Hare_Psychopathy_Checklist_17-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-Hare_Psychopathy_Checklist_17-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation encyclopaedia cs1"><a rel="nofollow" class="external text" href="http://www.minddisorders.com/Flu-Inv/Hare-Psychopathy-Checklist.html">"Hare Psychopathy Checklist"</a>. <i>Encyclopedia of Mental Disorders</i>. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20130904123901/http://www.minddisorders.com/Flu-Inv/Hare-Psychopathy-Checklist.html">Archived</a> from the original on September 4, 2013<span class="reference-accessdate">. Retrieved <span class="nowrap">September 4,</span> 2013</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=bookitem&amp;rft.atitle=Hare+Psychopathy+Checklist&amp;rft.btitle=Encyclopedia+of+Mental+Disorders&amp;rft_id=http%3A%2F%2Fwww.minddisorders.com%2FFlu-Inv%2FHare-Psychopathy-Checklist.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3APsychopathy" class="Z3988"></span></span> </li> <li id="cite_note-LecterMyth-18"><span class="mw-cite-backlink">^ <a href="#cite_ref-LecterMyth_18-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-LecterMyth_18-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFDelisiVaughnBeaverWright2009" class="citation journal cs1">Delisi M, Vaughn MG, Beaver KM, Wright JP (2009). "The Hannibal Lecter Myth: Psychopathy and Verbal Intelligence in the MacArthur Violence Risk Assessment Study". <i><a href="/wiki/Journal_of_Psychopathology_and_Behavioral_Assessment" title="Journal of Psychopathology and Behavioral Assessment">Journal of Psychopathology and Behavioral Assessment</a></i>. <b>32</b> (2). New York City: <a href="/wiki/Springer_Science%2BBusiness_Media" title="Springer Science+Business Media">Springer Science+Business Media</a>: 169–77. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1007%2Fs10862-009-9147-z">10.1007/s10862-009-9147-z</a>. <a href="/wiki/S2CID_(identifier)" class="mw-redirect" title="S2CID (identifier)">S2CID</a>&#160;<a rel="nofollow" class="external text" href="https://api.semanticscholar.org/CorpusID:16184054">16184054</a>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=article&amp;rft.jtitle=Journal+of+Psychopathology+and+Behavioral+Assessment&amp;rft.atitle=The+Hannibal+Lecter+Myth%3A+Psychopathy+and+Verbal+Intelligence+in+the+MacArthur+Violence+Risk+Assessment+Study&amp;rft.volume=32&amp;rft.issue=2&amp;rft.pages=169-77&amp;rft.date=2009&amp;rft_id=info%3Adoi%2F10.1007%2Fs10862-009-9147-z&amp;rft_id=https%3A%2F%2Fapi.semanticscholar.org%2FCorpusID%3A16184054%23id-name%3DS2CID&amp;rft.aulast=Delisi&amp;rft.aufirst=Matt&amp;rft.au=Vaughn%2C+Michael+G.&amp;rft.au=Beaver%2C+Kevin+M.&amp;rft.au=Wright%2C+John+Paul&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3APsychopathy" class="Z3988"></span></span> </li> <li id="cite_note-19"><span class="mw-cite-backlink"><b><a href="#cite_ref-19">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFHare1999" class="citation book cs1"><a href="/wiki/Robert_D._Hare" title="Robert D. 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New York City: <a href="/wiki/Guilford_Press" title="Guilford Press">Guilford Press</a>. p.&#160;<a rel="nofollow" class="external text" href="https://archive.org/details/withoutconscienc00hare/page/22">22</a>. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a>&#160;<a href="/wiki/Special:BookSources/978-1-57230-451-2" title="Special:BookSources/978-1-57230-451-2"><bdi>978-1-57230-451-2</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=book&amp;rft.btitle=Without+Conscience%3A+The+Disturbing+World+of+the+Psychopaths+Among+Us&amp;rft.place=New+York+City&amp;rft.pages=22&amp;rft.pub=Guilford+Press&amp;rft.date=1999&amp;rft.isbn=978-1-57230-451-2&amp;rft.aulast=Hare&amp;rft.aufirst=Robert+D.&amp;rft_id=https%3A%2F%2Farchive.org%2Fdetails%2Fwithoutconscienc00hare%2Fpage%2F22&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3APsychopathy" class="Z3988"></span></span> </li> <li id="cite_note-:0-20"><span class="mw-cite-backlink">^ <a href="#cite_ref-:0_20-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-:0_20-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-:0_20-2"><sup><i><b>c</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFde_AlmeidaCabralNarvaes2015" class="citation journal cs1">de Almeida RM, Cabral JC, Narvaes R (2015). "Behavioural, hormonal and neurobiological mechanisms of aggressive behaviour in human and nonhuman primates". <i><a href="/wiki/Physiology_%26_Behavior" title="Physiology &amp; Behavior">Physiology &amp; Behavior</a></i>. <b>143</b>: 121–135. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1016%2Fj.physbeh.2015.02.053">10.1016/j.physbeh.2015.02.053</a>. <a href="/wiki/PMID_(identifier)" class="mw-redirect" title="PMID (identifier)">PMID</a>&#160;<a rel="nofollow" class="external text" href="https://pubmed.ncbi.nlm.nih.gov/25749197">25749197</a>. <a href="/wiki/S2CID_(identifier)" class="mw-redirect" title="S2CID (identifier)">S2CID</a>&#160;<a rel="nofollow" class="external text" href="https://api.semanticscholar.org/CorpusID:27711931">27711931</a>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=article&amp;rft.jtitle=Physiology+%26+Behavior&amp;rft.atitle=Behavioural%2C+hormonal+and+neurobiological+mechanisms+of+aggressive+behaviour+in+human+and+nonhuman+primates&amp;rft.volume=143&amp;rft.pages=121-135&amp;rft.date=2015&amp;rft_id=https%3A%2F%2Fapi.semanticscholar.org%2FCorpusID%3A27711931%23id-name%3DS2CID&amp;rft_id=info%3Apmid%2F25749197&amp;rft_id=info%3Adoi%2F10.1016%2Fj.physbeh.2015.02.053&amp;rft.aulast=de+Almeida&amp;rft.aufirst=Rosa+Maria+Martins&amp;rft.au=Cabral%2C+Jo%C3%A3o+Carlos+Centurion&amp;rft.au=Narvaes%2C+Rodrigo&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3APsychopathy" class="Z3988"></span></span> </li> <li id="cite_note-:3-21"><span class="mw-cite-backlink">^ <a href="#cite_ref-:3_21-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-:3_21-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text">Mary Ellen O'Toole, Ph.D.; Matt Logan, Ph.D.; and Sharon Smith, Ph.D.. <i>Looking Behind the Mask: Implications for Interviewing Psychopaths</i> in FBI Law Enforcement Bulletin, July 2012, p. 14.</span> </li> <li id="cite_note-:4-22"><span class="mw-cite-backlink">^ <a href="#cite_ref-:4_22-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-:4_22-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text">See Section 1 of the act <a rel="nofollow" class="external text" href="http://www.legislation.gov.uk/ukpga/2007/12/section/1">here</a> <a rel="nofollow" class="external text" href="https://web.archive.org/web/20150423023736/http://www.legislation.gov.uk/ukpga/2007/12/section/1">Archived</a> 2015-04-23 at the <a href="/wiki/Wayback_Machine" title="Wayback Machine">Wayback Machine</a>.</span> </li> <li id="cite_note-:5-23"><span class="mw-cite-backlink">^ <a href="#cite_ref-:5_23-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-:5_23-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFHackerFrym1955" class="citation journal cs1">Hacker FJ, Frym M (December 1955). <a rel="nofollow" class="external text" href="http://scholarship.law.berkeley.edu/cgi/viewcontent.cgi?article=3311&amp;context=californialawreview">"The Sexual Psychopath Act In Practice: A Critical Discussion"</a>. <i><a href="/wiki/California_Law_Review" title="California Law Review">California Law Review</a></i>. <b>43</b> (5): 766–80. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.2307%2F3478417">10.2307/3478417</a>. <a href="/wiki/JSTOR_(identifier)" class="mw-redirect" title="JSTOR (identifier)">JSTOR</a>&#160;<a rel="nofollow" class="external text" href="https://www.jstor.org/stable/3478417">3478417</a>. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20160416114703/http://scholarship.law.berkeley.edu/cgi/viewcontent.cgi?article=3311&amp;context=californialawreview">Archived</a> from the original on 16 April 2016<span class="reference-accessdate">. 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title="PMC (identifier)">PMC</a>&#160;<span class="id-lock-free" title="Freely accessible"><a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4556482">4556482</a></span>. <a href="/wiki/PMID_(identifier)" class="mw-redirect" title="PMID (identifier)">PMID</a>&#160;<a rel="nofollow" class="external text" href="https://pubmed.ncbi.nlm.nih.gov/26325039">26325039</a>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=article&amp;rft.jtitle=PLOS+ONE&amp;rft.atitle=Examining+the+genetic+and+environmental+associations+between+autistic+social+and+communication+deficits+and+psychopathic+callous-unemotional+traits.&amp;rft.volume=10&amp;rft.issue=9&amp;rft.pages=e0134331&amp;rft.date=2015&amp;rft_id=https%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fpmc%2Farticles%2FPMC4556482%23id-name%3DPMC&amp;rft_id=info%3Apmid%2F26325039&amp;rft_id=info%3Adoi%2F10.1371%2Fjournal.pone.0134331&amp;rft_id=info%3Abibcode%2F2015PLoSO..1034331O&amp;rft.aulast=O%27Nions&amp;rft.aufirst=Elizabeth&amp;rft_id=https%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fpmc%2Farticles%2FPMC4556482&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3APsychopathy" class="Z3988"></span></span> </li> <li id="cite_note-224"><span class="mw-cite-backlink"><b><a href="#cite_ref-224">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" 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href="https://pubmed.ncbi.nlm.nih.gov/26382954">26382954</a>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=article&amp;rft.jtitle=The+British+Journal+of+Psychiatry&amp;rft.atitle=Callous%E2%80%93unemotional+traits+in+adolescents+with+autism+spectrum+disorder&amp;rft.volume=207&amp;rft.issue=5&amp;rft.pages=392-399&amp;rft.date=2015&amp;rft_id=https%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fpmc%2Farticles%2FPMC4629071%23id-name%3DPMC&amp;rft_id=info%3Apmid%2F26382954&amp;rft_id=info%3Adoi%2F10.1192%2Fbjp.bp.114.159863&amp;rft.aulast=Leno&amp;rft.aufirst=Virginia+Carter&amp;rft_id=https%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fpmc%2Farticles%2FPMC4629071&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3APsychopathy" class="Z3988"></span></span> </li> <li id="cite_note-225"><span class="mw-cite-backlink"><b><a href="#cite_ref-225">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" 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"Corporate psychopathy: Talking the walk". <i><a href="/wiki/Behavioral_Sciences_%26_the_Law" title="Behavioral Sciences &amp; the Law">Behavioral Sciences &amp; the Law</a></i>. <b>28</b> (2): 174–93. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1002%2Fbsl.925">10.1002/bsl.925</a>. <a href="/wiki/PMID_(identifier)" class="mw-redirect" title="PMID (identifier)">PMID</a>&#160;<a rel="nofollow" class="external text" href="https://pubmed.ncbi.nlm.nih.gov/20422644">20422644</a>. <a href="/wiki/S2CID_(identifier)" class="mw-redirect" title="S2CID (identifier)">S2CID</a>&#160;<a rel="nofollow" class="external text" href="https://api.semanticscholar.org/CorpusID:15946623">15946623</a>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=article&amp;rft.jtitle=Behavioral+Sciences+%26+the+Law&amp;rft.atitle=Corporate+psychopathy%3A+Talking+the+walk&amp;rft.volume=28&amp;rft.issue=2&amp;rft.pages=174-93&amp;rft.date=2010-04&amp;rft_id=https%3A%2F%2Fapi.semanticscholar.org%2FCorpusID%3A15946623%23id-name%3DS2CID&amp;rft_id=info%3Apmid%2F20422644&amp;rft_id=info%3Adoi%2F10.1002%2Fbsl.925&amp;rft.aulast=Babiak&amp;rft.aufirst=Paul&amp;rft.au=Neumann%2C+Craig+S&amp;rft.au=Hare%2C+Robert+D&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3APsychopathy" class="Z3988"></span></span> </li> <li id="cite_note-255"><span class="mw-cite-backlink"><b><a href="#cite_ref-255">^</a></b></span> <span class="reference-text">a<link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFJames2013" class="citation cs2">James O (2013), <i>Office Politics: How to Thrive in a World of Lying, Backstabbing and Dirty Tricks</i>, p.&#160;21</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=book&amp;rft.btitle=Office+Politics%3A+How+to+Thrive+in+a+World+of+Lying%2C+Backstabbing+and+Dirty+Tricks&amp;rft.pages=21&amp;rft.date=2013&amp;rft.aulast=James&amp;rft.aufirst=O&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3APsychopathy" class="Z3988"></span>.</span> </li> <li id="cite_note-256"><span class="mw-cite-backlink"><b><a href="#cite_ref-256">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation news cs1"><a rel="nofollow" class="external text" href="https://www.theladders.com/career-advice/the-surprising-sign-you-may-be-a-psychopath">"If you're succeeding under a bully boss, you may be a psychopath"</a>. <i>Ladders | Business News &amp; Career Advice</i>. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20180216084912/https://www.theladders.com/career-advice/the-surprising-sign-you-may-be-a-psychopath">Archived</a> from the original on 2018-02-16<span class="reference-accessdate">. Retrieved <span class="nowrap">2018-02-16</span></span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=article&amp;rft.jtitle=Ladders+%7C+Business+News+%26+Career+Advice&amp;rft.atitle=If+you%27re+succeeding+under+a+bully+boss%2C+you+may+be+a+psychopath&amp;rft_id=https%3A%2F%2Fwww.theladders.com%2Fcareer-advice%2Fthe-surprising-sign-you-may-be-a-psychopath&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3APsychopathy" class="Z3988"></span></span> </li> </ol></div></div> <div class="mw-heading mw-heading2"><h2 id="Bibliography">Bibliography</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Psychopathy&amp;action=edit&amp;section=59" title="Edit section: Bibliography"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239549316">.mw-parser-output .refbegin{margin-bottom:0.5em}.mw-parser-output .refbegin-hanging-indents>ul{margin-left:0}.mw-parser-output .refbegin-hanging-indents>ul>li{margin-left:0;padding-left:3.2em;text-indent:-3.2em}.mw-parser-output .refbegin-hanging-indents ul,.mw-parser-output .refbegin-hanging-indents ul li{list-style:none}@media(max-width:720px){.mw-parser-output .refbegin-hanging-indents>ul>li{padding-left:1.6em;text-indent:-1.6em}}.mw-parser-output .refbegin-columns{margin-top:0.3em}.mw-parser-output .refbegin-columns ul{margin-top:0}.mw-parser-output .refbegin-columns li{page-break-inside:avoid;break-inside:avoid-column}@media screen{.mw-parser-output .refbegin{font-size:90%}}</style><div class="refbegin refbegin-columns references-column-width" style="column-width: 40em"> <ul><li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFBabiakHare2009" class="citation book cs1">Babiak P, Hare RD (2009-10-13). <span class="id-lock-registration" title="Free registration required"><a rel="nofollow" class="external text" href="https://archive.org/details/isbn_9780061147890"><i>Snakes in Suits: When Psychopaths Go to Work</i></a></span>. New York, NY: <a href="/wiki/HarperCollins" title="HarperCollins">HarperCollins</a>. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a>&#160;<a href="/wiki/Special:BookSources/978-0-06-114789-0" title="Special:BookSources/978-0-06-114789-0"><bdi>978-0-06-114789-0</bdi></a>. <q>snakes in suits.</q></cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=book&amp;rft.btitle=Snakes+in+Suits%3A+When+Psychopaths+Go+to+Work&amp;rft.place=New+York%2C+NY&amp;rft.pub=HarperCollins&amp;rft.date=2009-10-13&amp;rft.isbn=978-0-06-114789-0&amp;rft.aulast=Babiak&amp;rft.aufirst=Paul&amp;rft.au=Hare%2C+Robert+D.&amp;rft_id=https%3A%2F%2Farchive.org%2Fdetails%2Fisbn_9780061147890&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3APsychopathy" class="Z3988"></span></li> <li>Black, Will (2014) <i>Psychopathic Cultures and Toxic Empires</i> Frontline Noir, Edinburgh <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a>&#160;<a href="/wiki/Special:BookSources/978-1904684718" title="Special:BookSources/978-1904684718">978-1904684718</a></li> <li>Blair, J. et al. (2005) <i>The Psychopath – Emotion and the Brain</i>. Malden, MA: Blackwell Publishing, <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a>&#160;<a href="/wiki/Special:BookSources/978-0-631-23335-0" title="Special:BookSources/978-0-631-23335-0">978-0-631-23335-0</a></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFCleckley1988" class="citation book cs1">Cleckley H (1988). <a rel="nofollow" class="external text" href="https://archive.org/details/0490-pdf-cleckley-the-mask-of-sanity"><i>The Mask of Sanity</i></a> (5th&#160;ed.). Augusta, Georgia: Emily S. Cleckley. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a>&#160;<a href="/wiki/Special:BookSources/0-9621519-0-4" title="Special:BookSources/0-9621519-0-4"><bdi>0-9621519-0-4</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=book&amp;rft.btitle=The+Mask+of+Sanity&amp;rft.place=Augusta%2C+Georgia&amp;rft.edition=5th&amp;rft.pub=Emily+S.+Cleckley&amp;rft.date=1988&amp;rft.isbn=0-9621519-0-4&amp;rft.aulast=Cleckley&amp;rft.aufirst=Hervey&amp;rft_id=https%3A%2F%2Farchive.org%2Fdetails%2F0490-pdf-cleckley-the-mask-of-sanity&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3APsychopathy" class="Z3988"></span></li> <li><a href="/wiki/Kevin_Dutton" title="Kevin Dutton">Dutton, K.</a> (2012) <i>The Wisdom of Psychopaths</i> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a>&#160;<a href="/wiki/Special:BookSources/978-0-374-70910-5" title="Special:BookSources/978-0-374-70910-5">978-0-374-70910-5</a> (e-book)</li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFHare1999" class="citation book cs1"><a href="/wiki/Robert_D._Hare" title="Robert D. Hare">Hare RD</a> (1999). <a rel="nofollow" class="external text" href="https://archive.org/details/withoutconscienc00hare"><i>Without Conscience: The Disturbing World of the Psychopaths Among Us</i></a>. New York: <a href="/wiki/Guilford_Press" title="Guilford Press">Guilford Press</a>. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a>&#160;<a href="/wiki/Special:BookSources/978-1-57230-451-2" title="Special:BookSources/978-1-57230-451-2"><bdi>978-1-57230-451-2</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=book&amp;rft.btitle=Without+Conscience%3A+The+Disturbing+World+of+the+Psychopaths+Among+Us&amp;rft.place=New+York&amp;rft.pub=Guilford+Press&amp;rft.date=1999&amp;rft.isbn=978-1-57230-451-2&amp;rft.aulast=Hare&amp;rft.aufirst=Robert+D.&amp;rft_id=https%3A%2F%2Farchive.org%2Fdetails%2Fwithoutconscienc00hare&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3APsychopathy" class="Z3988"></span></li> <li>Häkkänen-Nyholm, H. &amp; Nyholm, J-O. (2012). Psychopathy and Law: A Practitioners Guide. Chichester: John Wiley &amp; Sons.</li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFKiehl2014" class="citation book cs1"><a href="/wiki/Kent_Kiehl" title="Kent Kiehl">Kiehl K</a> (2014). <i>The psychopath whisperer: the science of those without a conscience</i>. New York: Crown Publishers. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a>&#160;<a href="/wiki/Special:BookSources/978-0-7704-3584-4" title="Special:BookSources/978-0-7704-3584-4"><bdi>978-0-7704-3584-4</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=book&amp;rft.btitle=The+psychopath+whisperer%3A+the+science+of+those+without+a+conscience&amp;rft.place=New+York&amp;rft.pub=Crown+Publishers&amp;rft.date=2014&amp;rft.isbn=978-0-7704-3584-4&amp;rft.aulast=Kiehl&amp;rft.aufirst=Kent&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3APsychopathy" class="Z3988"></span></li> <li><a href="/wiki/Barbara_Oakley" title="Barbara Oakley">Oakley, Barbara</a>, <a rel="nofollow" class="external text" href="https://web.archive.org/web/20080323125350/http://www.evilgenes.com/"><i>Evil Genes: Why Rome Fell, Hitler Rose, Enron Failed, and My Sister Stole My Mother's Boyfriend.</i></a> Prometheus Books, Amherst, NY, 2007, <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a>&#160;<a href="/wiki/Special:BookSources/1-59102-665-2" title="Special:BookSources/1-59102-665-2">1-59102-665-2</a>.</li> <li>Stone, Michael H., M.D. &amp; Brucato, Gary, Ph.D., The New Evil: Understanding the Emergence of Modern Violent Crime (Amherst, N.Y.: Prometheus Books). <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a>&#160;<a href="/wiki/Special:BookSources/978-1-63388-532-5" title="Special:BookSources/978-1-63388-532-5">978-1-63388-532-5</a>.</li> <li>Thiessen, W Slip-ups and the dangerous mind: Seeing through and living beyond the psychopath (2012).</li> <li>Thimble, Michael H.F.R.C.P., F.R.C. Psych. <i>Psychopathology of Frontal Lobe Syndromes</i>.</li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFWidiger1995" class="citation book cs1">Widiger T (1995). <i>Personality Disorder Interview-IV, Chapter 4: Antisocial Personality Disorder</i>. Psychological Assessment Resources, Inc. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a>&#160;<a href="/wiki/Special:BookSources/978-0-911907-21-6" title="Special:BookSources/978-0-911907-21-6"><bdi>978-0-911907-21-6</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=book&amp;rft.btitle=Personality+Disorder+Interview-IV%2C+Chapter+4%3A+Antisocial+Personality+Disorder&amp;rft.pub=Psychological+Assessment+Resources%2C+Inc.&amp;rft.date=1995&amp;rft.isbn=978-0-911907-21-6&amp;rft.aulast=Widiger&amp;rft.aufirst=Thomas&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3APsychopathy" class="Z3988"></span></li></ul> </div> <div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Psychopathy&amp;action=edit&amp;section=60" title="Edit section: External 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class="navbox-group" style="width:1%;background: #EAECF0;color:black;">Classification</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"><div style="position:relative; float:right; font-size:0.8em;"><a href="https://www.wikidata.org/wiki/Q366886" class="extiw" title="d:Q366886">D</a></div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;background: #EAECF0;color:black;">External resources</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"><div class="hlist" style="text-align:left;"><ul><li><b><a href="/wiki/MedlinePlus" title="MedlinePlus">MedlinePlus</a></b>: <a rel="nofollow" class="external text" href="https://www.nlm.nih.gov/medlineplus/ency/article/000921.htm">000921</a></li></ul></div></div></td></tr></tbody></table></div> <style data-mw-deduplicate="TemplateStyles:r1235681985">.mw-parser-output .side-box{margin:4px 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related to <span style="font-weight: bold; font-style: italic;"><a href="https://commons.wikimedia.org/wiki/Category:Psychopathy" class="extiw" title="commons:Category:Psychopathy">Psychopathy</a></span>.</div></div> </div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1235681985"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1237033735"><div class="side-box side-box-right plainlinks sistersitebox"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1126788409"> <div class="side-box-flex"> <div class="side-box-image"><span class="noviewer" typeof="mw:File"><span><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/9/99/Wiktionary-logo-en-v2.svg/40px-Wiktionary-logo-en-v2.svg.png" decoding="async" width="40" height="40" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/99/Wiktionary-logo-en-v2.svg/60px-Wiktionary-logo-en-v2.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/99/Wiktionary-logo-en-v2.svg/80px-Wiktionary-logo-en-v2.svg.png 2x" data-file-width="512" data-file-height="512" /></span></span></div> <div class="side-box-text plainlist">Look up <i><b><a href="https://en.wiktionary.org/wiki/Special:Search/psychopathy" class="extiw" title="wiktionary:Special:Search/psychopathy">psychopathy</a></b></i> in Wiktionary, the free dictionary.</div></div> </div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1235681985"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1237033735"><div class="side-box side-box-right plainlinks sistersitebox"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1126788409"> <div class="side-box-flex"> <div class="side-box-image"><span class="noviewer" typeof="mw:File"><span><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/f/fa/Wikiquote-logo.svg/34px-Wikiquote-logo.svg.png" decoding="async" width="34" height="40" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/fa/Wikiquote-logo.svg/51px-Wikiquote-logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/fa/Wikiquote-logo.svg/68px-Wikiquote-logo.svg.png 2x" data-file-width="300" data-file-height="355" /></span></span></div> <div class="side-box-text plainlist">Wikiquote has quotations related to <i><b><a href="https://en.wikiquote.org/wiki/Special:Search/Psychopathy" class="extiw" title="q:Special:Search/Psychopathy">Psychopathy</a></b></i>.</div></div> </div> <ul><li><a rel="nofollow" class="external text" href="https://books.google.com/books?id=QOZTDwAAQBAJ">Handbook of Psychopathy, 2nd Edition (2018)</a> on Google Books.</li> <li><a rel="nofollow" class="external text" href="https://archive.org/details/0490-pdf-cleckley-the-mask-of-sanity">The Mask of Sanity, 5th Edition</a>, PDF of Hervey Cleckley's book, 1988</li> <li><a rel="nofollow" class="external text" href="http://www.hare.org">Without Conscience</a> Official web site of Robert Hare</li> <li><a rel="nofollow" class="external text" href="http://philpapers.org/browse/psychopathy/?sort=pubYear&amp;showCategories=on&amp;hideAbstracts=&amp;cn=psychopathy&amp;new=1&amp;limit=50&amp;filterByAreas=&amp;proOnly=on&amp;cId=109956&amp;freeOnly=&amp;newWindow=on&amp;categorizerOn=&amp;onlineOnly=&amp;langFilter=&amp;start=0&amp;sqc=&amp;publishedOnly=&amp;format=html&amp;jlist=&amp;ap_c1=&amp;ap_c2=">Philpapers Psychopathy</a></li> <li><a rel="nofollow" class="external text" href="http://www.all-about-forensic-psychology.com/psychopath.html">Understanding The Psychopath: Key Definitions &amp; Research</a></li> <li><a rel="nofollow" class="external text" href="https://www.psychopathyis.org">Psychopathy Is website</a></li> <li><a rel="nofollow" class="external text" href="http://www.psychiatrictimes.com/display/article/10168/54411">The Paradox of Psychopathy</a> <a rel="nofollow" class="external text" href="https://web.archive.org/web/20130415015241/http://www.psychiatrictimes.com/display/article/10168/54411">Archived</a> 2013-04-15 at the <a href="/wiki/Wayback_Machine" title="Wayback Machine">Wayback Machine</a> Psychiatric Times, 2007 (nb: inconsistent access)</li> <li><a rel="nofollow" class="external text" href="https://web.archive.org/web/20090320111620/http://www.uiowa.edu/~c036090/abbott.pdf">Into the Mind of a Killer</a> <i>Nature</i>, 2001</li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation news cs1"><a rel="nofollow" class="external text" href="https://www.npr.org/2011/05/26/136619689/can-a-test-really-tell-whos-a-psychopath">"Can A Test Really Tell Who's A Psychopath?"</a>. <i>npr.org</i>. <a href="/wiki/NPR" title="NPR">NPR</a>. <q>NPR audio, text and expert panel report, 2011</q></cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=article&amp;rft.jtitle=npr.org&amp;rft.atitle=Can+A+Test+Really+Tell+Who%27s+A+Psychopath%3F&amp;rft_id=https%3A%2F%2Fwww.npr.org%2F2011%2F05%2F26%2F136619689%2Fcan-a-test-really-tell-whos-a-psychopath&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3APsychopathy" class="Z3988"></span></li> <li><a rel="nofollow" class="external text" href="http://www.scientificamerican.com/article.cfm?id=what-psychopaths-teach-us-about-how-to-succeed"><i>What Psychopaths Teach Us about How to Succeed</i></a> <i><a href="/wiki/Scientific_American" title="Scientific American">Scientific American</a></i>, October 2012</li> <li><a rel="nofollow" class="external text" href="https://www.theatlantic.com/magazine/archive/2017/06/when-your-child-is-a-psychopath/524502/">"When Your Child is a Psychopath"</a> in <i>The Atlantic</i></li></ul> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" 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title="Algorithmic radicalization">Algorithmic radicalization</a></li> <li><a href="/wiki/Alternative_facts" title="Alternative facts">Alternative facts</a></li> <li><a href="/wiki/Big_lie" title="Big lie">Big lie</a></li> <li><a href="/wiki/Cherry_picking" title="Cherry picking">Cherry picking</a></li> <li><a href="/wiki/Circular_reporting" title="Circular reporting">Circular reporting</a></li> <li><a href="/wiki/Cognitive_bias" title="Cognitive bias">Cognitive bias</a> <ul><li><a href="/wiki/List_of_cognitive_biases" title="List of cognitive biases">List of cognitive biases</a></li></ul></li> <li><a href="/wiki/Conspiracy_theory" title="Conspiracy theory">Conspiracy theory</a> (<a href="/wiki/List_of_conspiracy_theories" title="List of conspiracy theories">list</a>)</li> <li><a href="/wiki/Deception" title="Deception">Deception</a></li> <li><a href="/wiki/Denialism" title="Denialism">Denialism</a></li> <li><a href="/wiki/Disinformation_attack" title="Disinformation attack">Disinformation attack</a></li> <li><a href="/wiki/Doublespeak" title="Doublespeak">Doublespeak</a></li> <li><a href="/wiki/Euphemistic_misspeaking" class="mw-redirect" title="Euphemistic misspeaking">Euphemistic misspeaking</a></li> <li><a href="/wiki/Factoid" title="Factoid">Factoid</a></li> <li><a href="/wiki/Fake_news" title="Fake news">Fake news</a> <ul><li><a href="/wiki/Fake_news_website" title="Fake news website">online</a></li> <li><a href="/wiki/List_of_fake_news_websites" title="List of fake news websites">list of websites</a></li> <li><a href="/wiki/Lying_press" title="Lying press">Lying press</a></li></ul></li> <li><a href="/wiki/Fallacy" title="Fallacy">Fallacy</a> <ul><li><a href="/wiki/List_of_fallacies" title="List of fallacies">List of fallacies</a></li></ul></li> <li><a href="/wiki/False_accusation" title="False accusation">False accusation</a></li> <li><a href="/wiki/False_dilemma" title="False dilemma">False dilemma</a></li> <li><a href="/wiki/False_flag" title="False flag">False flag</a></li> <li><a href="/wiki/Fear,_uncertainty,_and_doubt" title="Fear, uncertainty, and doubt">Fear, uncertainty, and doubt</a></li> <li><a href="/wiki/Firehose_of_falsehood" title="Firehose of falsehood">Firehose of falsehood</a></li> <li><a href="/wiki/Forgery_as_covert_operation" title="Forgery as covert operation">Forgery as covert operation</a></li> <li><a href="/wiki/Gaslighting" title="Gaslighting">Gaslighting</a></li> <li><a href="/wiki/Half-truth" title="Half-truth">Half-truth</a></li> <li><a href="/wiki/Historical_negationism" title="Historical negationism">Historical negationism</a></li> <li><a href="/wiki/Hoax" title="Hoax">Hoax</a></li> <li><a href="/wiki/Infodemic" title="Infodemic">Infodemic</a></li> <li><a href="/wiki/Internet_manipulation" title="Internet manipulation">Internet manipulation</a></li> <li><a href="/wiki/Manipulation_(psychology)" title="Manipulation (psychology)">Manipulation (psychology)</a></li> <li><a href="/wiki/Media_culture" title="Media culture">Media culture</a></li> <li><a href="/wiki/Media_manipulation" title="Media manipulation">Media manipulation</a></li> <li><a href="/wiki/Potemkin_village" title="Potemkin village">Potemkin village</a></li> <li><a href="/wiki/Post-truth_politics" title="Post-truth politics">Post-truth politics</a></li> <li><a href="/wiki/Psychological_warfare" title="Psychological warfare">Psychological warfare</a> <ul><li><a href="/wiki/Memetic_warfare" title="Memetic warfare">Memetic warfare</a></li> <li><a href="/wiki/Military_deception" title="Military deception">Military deception</a></li></ul></li> <li><a href="/wiki/Propaganda" title="Propaganda">Propaganda</a> <ul><li><a href="/wiki/Black_propaganda" title="Black propaganda">black propaganda</a></li> <li><a href="/wiki/Counterpropaganda" title="Counterpropaganda">counterpropaganda</a></li> <li><a href="/wiki/State-sponsored_Internet_propaganda" title="State-sponsored Internet propaganda">State-sponsored Internet propaganda</a></li></ul></li> <li><a href="/wiki/Quoting_out_of_context" title="Quoting out of context">Quote mining</a></li> <li><a href="/wiki/Fabrication_(science)" class="mw-redirect" title="Fabrication (science)">Scientific fabrication</a></li> <li><a href="/wiki/Smear_campaign" title="Smear campaign">Smearing</a></li> <li><a href="/wiki/Social_bot" title="Social bot">Social bot</a></li> <li><a href="/wiki/Spin_(propaganda)" title="Spin (propaganda)">Spin</a></li> <li><a href="/wiki/Truthiness" title="Truthiness">Truthiness</a></li> <li><a href="/wiki/Urban_legends_and_myths" class="mw-redirect" title="Urban legends and myths">Urban legend</a></li> <li><a href="/wiki/Whataboutism" title="Whataboutism">Whataboutism</a></li> <li><a href="/wiki/Yellow_journalism" title="Yellow journalism">Yellow journalism</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks mw-collapsible mw-collapsed navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><div id="Books_and_documentaries" style="font-size:114%;margin:0 4em">Books and documentaries</div></th></tr><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Disinformation_(book)" title="Disinformation (book)"><i>Disinformation</i> by Ion Mihai Pacepa</a></li> <li><a href="/wiki/Dezinformatsia_(book)" title="Dezinformatsia (book)"><i>Dezinformatsia: Active Measures in Soviet Strategy</i></a></li> <li><i><a href="/wiki/The_KGB_and_Soviet_Disinformation" title="The KGB and Soviet Disinformation">The KGB and Soviet Disinformation</a></i></li> <li><i><a href="/wiki/Who%27s_Who_in_the_CIA" title="Who&#39;s Who in the CIA">Who's Who in the CIA</a></i></li> <li><i><a href="/wiki/Merchants_of_Doubt" title="Merchants of Doubt">Merchants of Doubt</a></i></li> <li><i><a href="/wiki/After_Truth:_Disinformation_and_the_Cost_of_Fake_News" title="After Truth: Disinformation and the Cost of Fake News">After Truth: Disinformation and the Cost of Fake News</a></i></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks mw-collapsible mw-collapsed navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><div id="Examples" style="font-size:114%;margin:0 4em">Examples</div></th></tr><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Bermuda_Triangle" title="Bermuda Triangle">Bermuda Triangle</a></li> <li><a href="/wiki/Congo_Free_State_propaganda_war" title="Congo Free State propaganda war">Congo Free State propaganda war</a></li> <li><a href="/wiki/Climate_change_denial" title="Climate change denial">Climate change denial</a></li> <li><a href="/wiki/Free_energy_suppression_conspiracy_theory" title="Free energy suppression conspiracy theory">Free energy suppression</a></li> <li><a href="/wiki/Genocide_denial" title="Genocide denial">Genocide denial</a> <ul><li><a href="/wiki/Holocaust_denial" title="Holocaust denial">Holocaust denial</a></li></ul></li> <li><a href="/wiki/Illuminati" title="Illuminati">Illuminati</a></li> <li><a href="/wiki/International_Jewish_conspiracy" title="International Jewish conspiracy">International Jewish conspiracy</a></li> <li><a href="/wiki/Misinformation_in_the_Israel%E2%80%93Hamas_war" title="Misinformation in the Israel–Hamas war">Misinformation in the Israel–Hamas war</a></li> <li><a href="/wiki/Disinformation_in_the_Russian_invasion_of_Ukraine" title="Disinformation in the Russian invasion of Ukraine">Disinformation in the Russian invasion of Ukraine</a></li> <li><a href="/wiki/New_World_Order_(conspiracy_theory)" class="mw-redirect" title="New World Order (conspiracy theory)">New World Order</a></li> <li><a href="/wiki/Red_mercury" title="Red mercury">Red mercury</a></li> <li><a href="/wiki/Reptilian_conspiracy_theory" title="Reptilian conspiracy theory">Reptilians</a></li> <li><a href="/wiki/Rothschild_family#Conspiracy_theories" title="Rothschild family">Rothschilds</a></li> <li><a href="/wiki/Strategy_of_tension" title="Strategy of tension">Strategy of tension</a></li></ul> </div></td></tr><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Health" scope="row" class="navbox-group" style="width:1%">Health</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Misinformation_related_to_5G_technology" class="mw-redirect" title="Misinformation related to 5G technology">5G</a></li> <li><a href="/wiki/COVID-19_misinformation" title="COVID-19 misinformation">COVID-19 misinformation</a> <ul><li><a href="/wiki/COVID-19_misinformation_by_governments" title="COVID-19 misinformation by governments">by governments</a></li></ul></li> <li><a href="/wiki/Ebola_misinformation" title="Ebola misinformation">Ebola</a></li> <li><a href="/wiki/HIV/AIDS_denialism" title="HIV/AIDS denialism">HIV/AIDS denialism</a></li> <li><a href="/wiki/Mental_illness_denial" title="Mental illness denial">Mental illness denial</a></li> <li><a href="/wiki/Misinformation_related_to_abortion" title="Misinformation related to abortion">Misinformation related to abortion</a></li> <li><a href="/wiki/Vaccine_misinformation" title="Vaccine misinformation">Vaccines</a> <ul><li><a href="/wiki/Anti-vaccine_activism" title="Anti-vaccine activism">anti-vaccination</a></li> <li><a href="/wiki/Vaccines_and_autism" title="Vaccines and autism">autism</a></li> <li><a href="/wiki/COVID-19_vaccine_misinformation_and_hesitancy" title="COVID-19 vaccine misinformation and hesitancy">COVID-19</a></li></ul></li> <li><a href="/wiki/Water_fluoridation_controversy" title="Water fluoridation controversy">Water fluoridation controversy</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr></tbody></table><div></div></td></tr></tbody></table><div></div></td></tr><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks mw-collapsible mw-collapsed navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><div id="Operations_and_events_by_country" style="font-size:114%;margin:0 4em">Operations and events by country</div></th></tr><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%">Canada</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"><a href="/wiki/Jihadunspun.com" title="Jihadunspun.com">Jihadunspun.com</a></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">China</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Chinese_information_operations_and_information_warfare" title="Chinese information operations and information warfare">Chinese information operations</a> <ul><li><a href="/wiki/50_Cent_Party" title="50 Cent Party">50 Cent Party</a></li> <li><a href="/wiki/Cyberwarfare_by_China" title="Cyberwarfare by China">cyberwarfare</a></li> <li><a href="/wiki/Little_Pink" title="Little Pink">Little Pink</a></li> <li><a href="/wiki/Internet_Water_Army" class="mw-redirect" title="Internet Water Army">Internet Water Army</a></li> <li><a href="/wiki/PLA_Unit_61398" title="PLA Unit 61398">PLA Unit 61398</a></li> <li><a href="/wiki/Spamouflage" title="Spamouflage">Spamouflage</a></li></ul></li> <li><a href="/wiki/COVID-19_misinformation_by_China" title="COVID-19 misinformation by China">COVID-19</a></li> <li><i><a href="/wiki/Global_Times" title="Global Times">Global Times</a></i></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Czechoslovakia</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"><a href="/wiki/Operation_Neptune_(espionage)" title="Operation Neptune (espionage)">Operation Neptune</a></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Germany</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Funkspiel" title="Funkspiel">Funkspiel</a></li> <li><a href="/wiki/Propaganda_in_Nazi_Germany" title="Propaganda in Nazi Germany">Propaganda in Nazi Germany</a></li> <li><a href="/wiki/Myth_of_the_clean_Wehrmacht" title="Myth of the clean Wehrmacht">Myth of the clean Wehrmacht</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">India</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Fake_news_in_India" title="Fake news in India">Fake news in India</a></li> <li><a href="/wiki/Godi-media" class="mw-redirect" title="Godi-media">Godi-media</a></li> <li><a href="/wiki/Paid_news_in_India" title="Paid news in India">Paid news in India</a></li> <li><a href="/wiki/OpIndia" title="OpIndia">OpIndia</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Israel</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"><a href="/wiki/Team_Jorge" title="Team Jorge">Team Jorge</a></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Korea</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"><a href="/wiki/Voluntary_Agency_Network_of_Korea" title="Voluntary Agency Network of Korea">Voluntary Agency Network of Korea</a></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Kuwait</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"><a href="/wiki/Fintas_Group" title="Fintas Group">Fintas Group</a></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Mexico</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"><a href="/wiki/Pe%C3%B1abot" title="Peñabot">Peñabots</a></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Philippines</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/COVID-19_misinformation_in_the_Philippines" title="COVID-19 misinformation in the Philippines">COVID-19 misinformation in the Philippines</a> (<a href="/wiki/ChinaAngVirus_disinformation_campaign" title="ChinaAngVirus disinformation campaign">ChinaAngVirus disinformation campaign</a>)</li> <li><a href="/wiki/Fake_news_in_the_Philippines" title="Fake news in the Philippines">Fake news in the Philippines</a></li> <li><a href="/wiki/Historical_distortion_regarding_Ferdinand_Marcos" title="Historical distortion regarding Ferdinand Marcos">Historical distortion regarding Ferdinand Marcos</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Russian_disinformation" title="Russian disinformation">Russia</a> /<br />Soviet Union</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Soviet_disinformation" title="Soviet disinformation">Soviet era</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Active_measures" title="Active measures">Active Measures</a></li> <li><a href="/wiki/K-1000_battleship" title="K-1000 battleship">K-1000 battleship</a></li> <li><a href="/wiki/Operation_INFEKTION" class="mw-redirect" title="Operation INFEKTION">Operation INFEKTION</a></li> <li><a href="/wiki/Operation_Toucan_(KGB)" title="Operation Toucan (KGB)">Operation Toucan</a></li> <li><a href="/wiki/Seat_12" title="Seat 12">Seat 12</a></li> <li><a href="/wiki/Soviet_influence_on_the_peace_movement" title="Soviet influence on the peace movement">Soviet influence on the peace movement</a></li> <li><a href="/wiki/U.S._Army_Field_Manual_30-31B" title="U.S. Army Field Manual 30-31B">U.S. Army Field Manual 30-31B</a></li> <li><a href="/wiki/Useful_idiot" title="Useful idiot">Useful idiot</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Russian_disinformation_in_the_post-Soviet_era" class="mw-redirect" title="Russian disinformation in the post-Soviet era">Post-Soviet era</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Cyberwarfare_by_Russia" title="Cyberwarfare by Russia">Cyberwarfare</a> <ul><li><a href="/wiki/2007_cyberattacks_on_Estonia" title="2007 cyberattacks on Estonia">on Estonia</a></li> <li><a href="/wiki/Cyberattacks_during_the_Russo-Georgian_War" title="Cyberattacks during the Russo-Georgian War">during the Russo-Georgian War</a></li></ul></li> <li><a href="/wiki/Russian_information_war_against_Ukraine" title="Russian information war against Ukraine">Information war against Ukraine</a> <ul><li><a href="/wiki/Disinformation_in_the_Russian_invasion_of_Ukraine" title="Disinformation in the Russian invasion of Ukraine">Disinformation in the Russian invasion of Ukraine</a></li></ul></li> <li>On US elections <ul><li><a href="/wiki/Russian_interference_in_the_2016_United_States_elections" title="Russian interference in the 2016 United States elections">2016</a></li> <li><a href="/wiki/Russian_interference_in_the_2018_United_States_elections" title="Russian interference in the 2018 United States elections">2018</a></li> <li><a href="/wiki/Russian_interference_in_the_2020_United_States_elections" title="Russian interference in the 2020 United States elections">2020</a></li></ul></li> <li><a href="/wiki/Russian_interference_in_the_2016_Brexit_referendum" title="Russian interference in the 2016 Brexit referendum">2016 Brexit referendum</a></li> <li><a href="/wiki/Russian_Institute_for_Strategic_Studies" title="Russian Institute for Strategic Studies">Russian Institute for Strategic Studies</a></li> <li><a href="/wiki/Internet_Research_Agency" title="Internet Research Agency">Trolls from Olgino</a></li> <li><a href="/wiki/Russian_web_brigades" title="Russian web brigades">Web brigades</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">South Africa</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"><a href="/wiki/HIV/AIDS_denialism_in_South_Africa" title="HIV/AIDS denialism in South Africa">HIV/AIDS denialism</a></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Turkey</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Conspiracy_theories_in_Turkey" title="Conspiracy theories in Turkey">Conspiracy theories</a></li> <li><a href="/wiki/Media_censorship_and_disinformation_during_the_Gezi_Park_protests" title="Media censorship and disinformation during the Gezi Park protests">Media censorship and disinformation during the Gezi Park protests</a></li> <li><a href="/wiki/AK_Trolls" title="AK Trolls">AK Trolls</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">United Kingdom</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Bell_Pottinger" title="Bell Pottinger">Bell Pottinger</a></li> <li><a href="/wiki/Double-Cross_System" title="Double-Cross System">Double-Cross System</a></li> <li><a href="/wiki/Clockwork_Orange_(plot)" title="Clockwork Orange (plot)">Clockwork Orange plot</a></li> <li><a href="/wiki/Euromyth" title="Euromyth">Euromyth</a></li> <li><a href="/wiki/Lancet_MMR_autism_fraud" title="Lancet MMR autism fraud"><i>Lancet</i> MMR autism fraud</a></li> <li><a href="/wiki/Operation_Mass_Appeal" title="Operation Mass Appeal">Operation Mass Appeal</a></li> <li><a href="/wiki/Psychological_Warfare_Division" title="Psychological Warfare Division">Psychological Warfare Division</a></li> <li><a href="/wiki/Zinoviev_letter" title="Zinoviev letter">Zinoviev letter</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">United States</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/1995_CIA_disinformation_controversy" title="1995 CIA disinformation controversy">1995 CIA disinformation controversy</a></li> <li><a href="/wiki/Attempts_to_overturn_the_2020_United_States_presidential_election" title="Attempts to overturn the 2020 United States presidential election">Attempts to overturn the 2020 election</a></li> <li><a href="/wiki/Conspiracy_theories_in_United_States_politics" title="Conspiracy theories in United States politics">Conspiracy theories</a> <ul><li><a href="/wiki/9/11_conspiracy_theories" title="9/11 conspiracy theories">9/11 conspiracy theories</a></li> <li><a href="/wiki/CIA_Kennedy_assassination_conspiracy_theory" title="CIA Kennedy assassination conspiracy theory">CIA Kennedy assassination</a></li> <li><a href="/wiki/QAnon" title="QAnon">QAnon</a></li> <li><a href="/wiki/Sandy_Hook_Elementary_School_shooting_conspiracy_theories" title="Sandy Hook Elementary School shooting conspiracy theories">Sandy Hook</a></li></ul></li> <li><a href="/wiki/COVID-19_misinformation_by_the_United_States" title="COVID-19 misinformation by the United States">COVID-19</a></li> <li><a href="/wiki/Fake_news_in_the_United_States" title="Fake news in the United States">Fake news</a> <ul><li><a href="/wiki/Fake_news_websites_in_the_United_States" title="Fake news websites in the United States">online</a></li></ul></li> <li><a href="/wiki/Election_denial_movement_in_the_United_States" title="Election denial movement in the United States">Election denial movement in the United States</a></li> <li><a href="/wiki/The_Freedom_Fighter%27s_Manual" title="The Freedom Fighter&#39;s Manual">The Freedom Fighter's Manual</a></li> <li><a href="/wiki/Habbush_letter" title="Habbush letter">Habbush letter</a></li> <li><a href="/wiki/Information_Operations_Roadmap" title="Information Operations Roadmap">Information Operations Roadmap</a></li> <li><a href="/wiki/Litter_boxes_in_schools_hoax" title="Litter boxes in schools hoax">Litter boxes in schools</a></li> <li><a href="/wiki/Mohamed_Atta%27s_alleged_Prague_connection" title="Mohamed Atta&#39;s alleged Prague connection">Mohamed Atta's alleged Prague connection</a></li> <li><a href="/wiki/Niger_uranium_forgeries" title="Niger uranium forgeries">Niger uranium forgeries</a></li> <li><a href="/wiki/Tobacco_industry_playbook" title="Tobacco industry playbook">Tobacco industry playbook</a></li> <li><a href="/wiki/Operation_Shocker" title="Operation Shocker">Operation Shocker</a></li> <li><a href="/wiki/Yellow_rain" title="Yellow rain">Yellow rain</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Venezuela</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"><a href="/wiki/Bolivarian_Army_of_Trolls" title="Bolivarian Army of Trolls">Bolivarian Army of Trolls</a></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Vietnam</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Public_opinion_brigades" title="Public opinion brigades">Public opinion brigades</a></li> <li><a href="/wiki/Force_47" class="mw-redirect" title="Force 47">Force 47</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr></tbody></table><div></div></td></tr><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks mw-collapsible mw-collapsed navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><div id="Opposition" style="font-size:114%;margin:0 4em">Opposition</div></th></tr><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Fact-checking" title="Fact-checking">Fact-checking</a> <ul><li><a href="/wiki/Fact-checking_website" class="mw-redirect" title="Fact-checking website">Fact-checking website</a></li></ul></li> <li><a href="/wiki/Active_Measures_Working_Group" title="Active Measures Working Group">Active Measures Working Group</a></li> <li><a href="/wiki/Counter_disinformation_unit" title="Counter disinformation unit">Counter disinformation unit</a></li> <li><a href="/wiki/Counter_Misinformation_Team" class="mw-redirect" title="Counter Misinformation Team">Counter Misinformation Team</a></li> <li><a href="/wiki/Countering_Foreign_Propaganda_and_Disinformation_Act" title="Countering Foreign Propaganda and Disinformation Act">Countering Foreign Propaganda and Disinformation Act</a></li> <li><a href="/wiki/The_Disinformation_Project" title="The Disinformation Project">The Disinformation Project</a></li> <li><a href="/wiki/East_StratCom_Task_Force" title="East StratCom Task Force">East StratCom Task Force</a></li> <li><a href="/wiki/FactCheck.org" title="FactCheck.org">FactCheck.org</a></li> <li><a href="/wiki/Full_Fact" title="Full Fact">Full Fact</a></li> <li><a href="/wiki/Logically_(company)" title="Logically (company)">Logically</a></li> <li><a href="/wiki/NewsGuard" title="NewsGuard">NewsGuard</a></li> <li><a href="/wiki/PolitiFact" title="PolitiFact">PolitiFact</a></li> <li><a href="/wiki/Snopes" title="Snopes">Snopes</a></li> <li><a href="/wiki/StopFake" title="StopFake">StopFake</a></li> <li><a href="/wiki/United_States_Information_Agency" title="United States Information Agency">United States Information Agency</a></li> <li><a href="/wiki/USAFacts" title="USAFacts">USAFacts</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr></tbody></table></div> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236075235"></div><div role="navigation" class="navbox" aria-labelledby="Psychopathy" style="padding:3px"><table class="nowraplinks mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239400231"><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Psychopathy" title="Template:Psychopathy"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Psychopathy" title="Template talk:Psychopathy"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Psychopathy" title="Special:EditPage/Template:Psychopathy"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Psychopathy" style="font-size:114%;margin:0 4em"><a class="mw-selflink selflink">Psychopathy</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%">Contexts</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Fictional_portrayals_of_psychopaths" title="Fictional portrayals of psychopaths">In fiction</a></li> <li><a href="/wiki/Psychopathy_in_the_workplace" title="Psychopathy in the workplace">In the workplace</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Characteristics</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Anti-social_behaviour" title="Anti-social behaviour">Anti-social behaviour</a></li> <li><a href="/wiki/Boldness" title="Boldness">Bold</a></li> <li><a href="/wiki/Callous_and_unemotional_traits" title="Callous and unemotional traits">Callous</a></li> <li><a href="/wiki/Empathy#Psychopathy" title="Empathy">Diminished empathy</a></li> <li><a href="/wiki/Disinhibition" title="Disinhibition">Disinhibited</a></li> <li><a href="/wiki/Grandiosity" title="Grandiosity">Grandiose</a></li> <li><a href="/wiki/Impulsivity" title="Impulsivity">Impulsive</a></li> <li><a href="/wiki/Guilt_(emotion)#Lack_of_guilt_in_psychopaths" title="Guilt (emotion)">Lack of guilt</a></li> <li><a href="/wiki/Manipulation_(psychology)" title="Manipulation (psychology)">Manipulative</a></li> <li><a href="/wiki/Pathological_lying" title="Pathological lying">Pathological lying</a></li> <li><a href="/wiki/Remorse#Psychopathy" title="Remorse">Remorseless</a></li> <li><a href="/wiki/Shallow_affect" class="mw-redirect" title="Shallow affect">Shallow affect</a></li> <li><a href="/wiki/Superficial_charm" title="Superficial charm">Superficially charming</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Related topics</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Antisocial_personality_disorder" title="Antisocial personality disorder">Antisocial personality disorder</a></li> <li><a href="/wiki/Conduct_disorder" title="Conduct disorder">Conduct disorder</a></li> <li><a href="/wiki/Dark_triad" title="Dark triad">Dark triad</a></li> <li><a href="/wiki/History_of_psychopathy" title="History of psychopathy">History of psychopathy</a></li> <li><a href="/wiki/Juvenile_delinquency" title="Juvenile delinquency">Juvenile delinquency</a></li> <li><a href="/wiki/Machiavellianism_(psychology)" title="Machiavellianism (psychology)">Machiavellianism</a></li> <li><a href="/wiki/Macdonald_triad" title="Macdonald triad">Macdonald triad</a></li> <li><a href="/wiki/Narcissism" title="Narcissism">Narcissism</a></li> <li><a href="/wiki/Psychopathic_Personality_Inventory" title="Psychopathic Personality Inventory">Psychopathic Personality Inventory</a></li> <li><a href="/wiki/Psychopathy_Checklist" title="Psychopathy Checklist">Psychopathy Checklist</a></li> <li><a href="/wiki/Sadistic_personality_disorder" title="Sadistic personality disorder">Sadistic personality disorder</a></li> <li><a href="/wiki/Sexual_sadism_disorder" title="Sexual sadism disorder">Sexual sadism disorder</a></li> <li><a class="mw-selflink-fragment" href="#Sociopathy">Sociopathy</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Notable theorists</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Hervey_M._Cleckley" title="Hervey M. Cleckley">Hervey M. Cleckley</a></li> <li><a href="/wiki/George_E._Partridge" title="George E. Partridge">George E. Partridge</a></li> <li><a href="/wiki/Robert_D._Hare" title="Robert D. Hare">Robert D. Hare</a></li></ul> </div></td></tr></tbody></table></div> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236075235"></div><div role="navigation" class="navbox" aria-labelledby="Abuse" style="padding:3px"><table class="nowraplinks mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239400231"><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Abuse" title="Template:Abuse"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Abuse" title="Template talk:Abuse"><abbr title="Discuss this 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<li><a href="/wiki/Umpire_abuse" title="Umpire abuse">Referee and umpire abuse</a></li> <li><a href="/wiki/Religious_abuse" title="Religious abuse">Religious abuse</a></li> <li><a href="/wiki/Sexual_abuse" title="Sexual abuse">Sexual abuse</a></li> <li><a href="/wiki/Stalking" title="Stalking">Stalking</a></li> <li><a href="/wiki/Structural_abuse" title="Structural abuse">Structural abuse</a></li> <li><a href="/wiki/Surveillance_abuse" title="Surveillance abuse">Surveillance abuse</a></li> <li><a href="/wiki/Verbal_abuse" title="Verbal abuse">Verbal abuse</a></li> <li><i><a href="/wiki/Abuse#Types_and_contexts_of_abuse" title="Abuse">more...</a></i></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Related topics</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Abusive_supervision" title="Abusive supervision">Abusive supervision</a></li> <li><a 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