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(2)</label></li></ul></fieldset></details><details class="c-facetbox"><summary class="c-facetbox__summary"><span id="facetbox8">Reuse License</span></summary><fieldset aria-labelledby="facetbox8"><ul class="c-checkbox"><li class="c-checkbox__attrib-cc-by"><input type="checkbox" id="rights-CC_BY" class="c-checkbox__input" name="rights" value="CC BY"/><label for="rights-CC_BY" class="c-checkbox__label">BY - Attribution required (12)</label></li></ul></fieldset></details></div></div><button type="submit" id="facet-form-submit" style="display:none">Search</button></div></aside><main id="maincontent"><section class="o-columnbox1"><header><h2 class="o-columnbox1__heading" aria-live="polite">Scholarly Works (84 results)</h2></header><div class="c-sortpagination"><div class="c-sort"><div class="o-input__droplist1"><label for="c-sort1">Sort By:</label><select name="sort" id="c-sort1" form="facetForm"><option selected="" value="rel">Relevance</option><option value="a-title">A-Z By Title</option><option value="z-title">Z-A By Title</option><option value="a-author">A-Z By Author</option><option value="z-author">Z-A By Author</option><option value="asc">Date Ascending</option><option value="desc">Date Descending</option></select></div><div class="o-input__droplist1 c-sort__page-input"><label for="c-sort2">Show:</label><select name="rows" id="c-sort2" form="facetForm"><option selected="" value="10">10</option><option value="20">20</option><option value="30">30</option><option value="40">40</option><option value="50">50</option></select></div></div><input type="hidden" name="start" form="facetForm" value="0"/><nav class="c-pagination--next"><ul><li><a href="" aria-label="you are on result set 1" class="c-pagination__item--current">1</a></li><li><a href="" aria-label="go to result set 2" class="c-pagination__item">2</a></li><li><a href="" aria-label="go to result set 3" class="c-pagination__item">3</a></li><li><a href="" aria-label="go to result set 4" class="c-pagination__item">4</a></li><li><a href="" aria-label="go to result set 9" class="c-pagination__item">9</a></li><li class="c-pagination__next"><a href="" aria-label="go to Next result set">Next</a></li></ul></nav></div><section class="c-scholworks"><div class="c-scholworks__main-column"><ul class="c-scholworks__tag-list"><li class="c-scholworks__tag-article">Article</li><li class="c-scholworks__tag-peer">Peer Reviewed</li></ul><div><h3 class="c-scholworks__heading"><a href="/uc/item/956984rw"><div class="c-clientmarkup">Studying auditory verbal hallucinations using the RDoC framework</div></a></h3></div><div class="c-authorlist"><ul class="c-authorlist__list"><li class="c-authorlist__begin"><a href="/search/?q=author%3AFord%2C%20Judith%20M">Ford, Judith M</a> </li></ul></div><div class="c-scholworks__publication"><a href="/uc/ucsf_postprints">UC San Francisco Previously Published Works</a> (2016)</div><div class="c-scholworks__abstract"><div class="c-clientmarkup">In this paper, I explain why I adopted a Research Domain Criteria (RDoC) approach to study the neurobiology of auditory verbal hallucinations (AVH), or voices. I explain that the RDoC construct of "agency" fits well with AVH phenomenology. To the extent that voices sound nonself, voice hearers lack a sense of agency over the voices. Using a vocalization paradigm like those used with nonhuman primates to study mechanisms subserving the sense of agency, we find that the auditory N1 ERP is suppressed during vocalization, that EEG synchrony preceding speech onset is related to N1 suppression, and that both are reduced in patients with schizophrenia. Reduced cortical suppression is also seen across multiple psychotic disorders and in clinically high-risk youth, but it is not related to AVH. The motor activity preceding talking and connectivity between frontal and temporal lobes during talking have both proved sensitive to AVH, suggesting neural activity and connectivity associated with intentions to act may be a better way to study agency and predictions based on agency.</div></div><div class="c-scholworks__media"><ul class="c-medialist"></ul></div></div><div class="c-scholworks__ancillary"><a class="c-scholworks__thumbnail" href="/uc/item/956984rw"><img src="/cms-assets/ac6aedb41ef68dcfa4211ca1aa95d669fd5784d8c9ad38f93917b4f8213da916" alt="Cover page: Studying auditory verbal hallucinations using the RDoC framework"/></a></div></section><section class="c-scholworks"><div class="c-scholworks__main-column"><ul class="c-scholworks__tag-list"><li class="c-scholworks__tag-article">Article</li><li class="c-scholworks__tag-peer">Peer Reviewed</li></ul><div><h3 class="c-scholworks__heading"><a href="/uc/item/70s740hv"><div class="c-clientmarkup">The Role of Ketogenic Metabolic Therapy on the Brain in Serious Mental Illness: A Review</div></a></h3></div><div class="c-authorlist"><ul class="c-authorlist__list"><li class="c-authorlist__begin"><a href="/search/?q=author%3ASethi%2C%20Shebani">Sethi, Shebani</a>; </li><li class="c-authorlist__end"><a href="/search/?q=author%3AFord%2C%20Judith%20M">Ford, Judith M</a> </li></ul></div><div class="c-scholworks__publication"><a href="/uc/ucsf_postprints">UC San Francisco Previously Published Works</a> (2022)</div><div class="c-scholworks__abstract"><div class="c-clientmarkup">In search of interventions targeting brain dysfunction and underlying cognitive impairment in schizophrenia, we look at the brain and beyond to the potential role of dysfunctional systemic metabolism on neural network instability and insulin resistance in serious mental illness. We note that disrupted insulin and cerebral glucose metabolism are seen even in medication-naïve first-episode schizophrenia, suggesting that people with schizophrenia are at risk for Type 2 diabetes and cardiovascular disease, resulting in a shortened life span. Although glucose is the brain's default fuel, ketones are a more efficient fuel for the brain. We highlight evidence that a ketogenic diet can improve both the metabolic and neural stability profiles. Specifically, a ketogenic diet improves mitochondrial metabolism, neurotransmitter function, oxidative stress/inflammation, while also increasing neural network stability and cognitive function. To reverse the neurodegenerative process, increasing the brain's access to ketone bodies may be needed. We describe evidence that metabolic, neuroprotective, and neurochemical benefits of a ketogenic diet potentially provide symptomatic relief to people with schizophrenia while also improving their cardiovascular or metabolic health. We review evidence for KD side effects and note that although high in fat it improves various cardiovascular and metabolic risk markers in overweight/obese individuals. We conclude by calling for controlled clinical trials to confirm or refute the findings from anecdotal and case reports to address the potential beneficial effects of the ketogenic diet in people with serious mental illness.</div></div><div class="c-scholworks__media"><ul class="c-medialist"></ul></div></div><div class="c-scholworks__ancillary"><a class="c-scholworks__thumbnail" href="/uc/item/70s740hv"><img src="/cms-assets/093d5d2891b1f0b2a4b21ede98c64a4b60a2c2369731e61c214728a90f9f7b68" alt="Cover page: The Role of Ketogenic Metabolic Therapy on the Brain in Serious Mental Illness: A Review"/></a></div></section><section class="c-scholworks"><div class="c-scholworks__main-column"><ul class="c-scholworks__tag-list"><li class="c-scholworks__tag-article">Article</li><li class="c-scholworks__tag-peer">Peer Reviewed</li></ul><div><h3 class="c-scholworks__heading"><a href="/uc/item/00j792m7"><div class="c-clientmarkup">Distinguishing Between Schizophrenia and Other Psychotic Disorders</div></a></h3></div><div class="c-authorlist"><ul class="c-authorlist__list"><li class="c-authorlist__begin"><a href="/search/?q=author%3APearlson%2C%20Godfrey%20D">Pearlson, Godfrey D</a>; </li><li class="c-authorlist__end"><a href="/search/?q=author%3AFord%2C%20Judith%20M">Ford, Judith M</a> </li></ul></div><div class="c-scholworks__publication"><a href="/uc/ucsf_postprints">UC San Francisco Previously Published Works</a> (2014)</div><div class="c-scholworks__abstract"><div class="c-clientmarkup">The Diagnostic and Statistical Manual of Mental Disorders (DSM) has provided diagnostic reliability across observers while neglecting biological validity. The current theme issue explores the boundaries between schizophrenia and bipolar disorder, using neuro-cognition, systems neuroscience, and genetics as points of departure to begin consideration of a biologically based reclassification of these illnesses.</div></div><div class="c-scholworks__media"><ul class="c-medialist"></ul></div></div><div class="c-scholworks__ancillary"><a class="c-scholworks__thumbnail" href="/uc/item/00j792m7"><img src="/cms-assets/7863dae8d2f90c2a429af4345714299ab6a68677959806d2b8ef3f27cacde550" alt="Cover page: Distinguishing Between Schizophrenia and Other Psychotic Disorders"/></a></div></section><section class="c-scholworks"><div class="c-scholworks__main-column"><ul class="c-scholworks__tag-list"><li class="c-scholworks__tag-article">Article</li><li class="c-scholworks__tag-peer">Peer Reviewed</li></ul><div><h3 class="c-scholworks__heading"><a href="/uc/item/4gn5m2xd"><div class="c-clientmarkup">Reconciling competing mechanisms posited to underlie auditory verbal hallucinations</div></a></h3></div><div class="c-authorlist"><ul class="c-authorlist__list"><li class="c-authorlist__begin"><a href="/search/?q=author%3AThakkar%2C%20Katharine%20N">Thakkar, Katharine N</a>; </li><li><a href="/search/?q=author%3AMathalon%2C%20Daniel%20H">Mathalon, Daniel H</a>; </li><li class="c-authorlist__end"><a href="/search/?q=author%3AFord%2C%20Judith%20M">Ford, Judith M</a> </li></ul></div><div class="c-scholworks__publication"><a href="/uc/ucsf_postprints">UC San Francisco Previously Published Works</a> (2021)</div><div class="c-scholworks__abstract"><div class="c-clientmarkup">Perception is not the passive registration of incoming sensory data. Rather, it involves some analysis by synthesis, based on past experiences and context. One adaptive consequence of this arrangement is imagination-the ability to richly simulate sensory experiences, interrogate and manipulate those simulations, in service of action and decision making. In this paper, we will discuss one possible cost of this adaptation, namely hallucinations-perceptions without sensory stimulation, which characterize serious mental illnesses like schizophrenia, but which also occur in neurological illnesses, and-crucially for the present piece-are common also in the non-treatment-seeking population. We will draw upon a framework for imagination that distinguishes voluntary from non-voluntary experiences and explore the extent to which the varieties and features of hallucinations map onto this distinction, with a focus on auditory-verbal hallucinations (AVHs)-colloquially, hearing voices. We will propose that sense of agency for the act of imagining is key to meaningfully dissecting different forms and features of AVHs, and we will outline the neural, cognitive and phenomenological sequelae of this sense. We will conclude that a compelling unifying framework for action, perception and belief-predictive processing-can incorporate observations regarding sense of agency, imagination and hallucination. This article is part of the theme issue 'Offline perception: voluntary and spontaneous perceptual experiences without matching external stimulation'.</div></div><div class="c-scholworks__media"><ul class="c-medialist"></ul></div></div><div class="c-scholworks__ancillary"><a class="c-scholworks__thumbnail" href="/uc/item/4gn5m2xd"><img src="/cms-assets/f92bd9be0fff3249359c1ea53df718d3c785f43f84cbbfaf3d4cbc170432a2e9" alt="Cover page: Reconciling competing mechanisms posited to underlie auditory verbal hallucinations"/></a></div></section><section class="c-scholworks"><div class="c-scholworks__main-column"><ul class="c-scholworks__tag-list"><li class="c-scholworks__tag-article">Article</li><li class="c-scholworks__tag-peer">Peer Reviewed</li></ul><div><h3 class="c-scholworks__heading"><a href="/uc/item/57t1z7cb"><div class="c-clientmarkup">P300 in Schizophrenia: Then and Now</div></a></h3></div><div class="c-authorlist"><ul class="c-authorlist__list"><li class="c-authorlist__begin"><a href="/search/?q=author%3AHamilton%2C%20Holly%20K">Hamilton, Holly K</a>; </li><li><a href="/search/?q=author%3AMathalon%2C%20Daniel%20H">Mathalon, Daniel H</a>; </li><li class="c-authorlist__end"><a href="/search/?q=author%3AFord%2C%20Judith%20M">Ford, Judith M</a> </li></ul></div><div class="c-scholworks__publication"><a href="/uc/ucsf_postprints">UC San Francisco Previously Published Works</a> (2024)</div><div class="c-scholworks__abstract"><div class="c-clientmarkup">The 1965 discovery of the P300 component of the electroencephalography (EEG)-based event-related potential (ERP), along with the subsequent identification of its alteration in people with schizophrenia, initiated over 50 years of P300 research in schizophrenia. Here, we review what we now know about P300 in schizophrenia after nearly six decades of research. We describe recent efforts to expand our understanding of P300 beyond its sensitivity to schizophrenia itself to its potential role as a biomarker of risk for psychosis or a heritable endophenotype that bridges genetic risk and psychosis phenomenology. We also highlight efforts to move beyond a syndrome-based approach to understand P300 within the context of the clinical, cognitive, and presumed pathophysiological heterogeneity among people diagnosed with schizophrenia. Finally, we describe several recent approaches that extend beyond measuring the traditional P300 ERP component in people with schizophrenia, including time-frequency analyses and pharmacological challenge studies, that may help to clarify specific cognitive mechanisms that are disrupted in schizophrenia. Moreover, we discuss several promising areas for future research, including studies of animal models that can be used for treatment development.</div></div><div class="c-scholworks__media"><ul class="c-medialist"></ul></div></div><div class="c-scholworks__ancillary"><a class="c-scholworks__thumbnail" href="/uc/item/57t1z7cb"><img src="/cms-assets/a1ddb328238bf775c692d974523ac40628b275417d8a7c1e7cbbc452873b2557" alt="Cover page: P300 in Schizophrenia: Then and Now"/></a></div></section><section class="c-scholworks"><div class="c-scholworks__main-column"><ul class="c-scholworks__tag-list"><li class="c-scholworks__tag-article">Article</li><li class="c-scholworks__tag-peer">Peer Reviewed</li></ul><div><h3 class="c-scholworks__heading"><a href="/uc/item/5nx15580"><div class="c-clientmarkup">Cerebellar stimulation in schizophrenia: A systematic review of the evidence and an overview of the methods.</div></a></h3></div><div class="c-authorlist"><ul class="c-authorlist__list"><li class="c-authorlist__begin"><a href="/search/?q=author%3AHua%2C%20Jessica%20PY">Hua, Jessica PY</a>; </li><li><a href="/search/?q=author%3AAbram%2C%20Samantha%20V">Abram, Samantha V</a>; </li><li class="c-authorlist__end"><a href="/search/?q=author%3AFord%2C%20Judith%20M">Ford, Judith M</a> </li></ul></div><div class="c-scholworks__publication"><a href="/uc/ucsf_postprints">UC San Francisco Previously Published Works</a> (2022)</div><div class="c-scholworks__abstract"><div class="c-clientmarkup"><h3>Background</h3>Cerebellar structural and functional abnormalities underlie widespread deficits in clinical, cognitive, and motor functioning that are observed in schizophrenia. Consequently, the cerebellum is a promising target for novel schizophrenia treatments. Here we conducted an updated systematic review examining the literature on cerebellar stimulation efficacy and tolerability for mitigating symptoms of schizophrenia. We discuss the purported mechanisms of cerebellar stimulation, current methods for implementing stimulation, and future directions of cerebellar stimulation for intervention development with this population.<h3>Methods</h3>Two independent authors identified 20 published studies (7 randomized controlled trials, 7 open-label studies, 1 pilot study, 4 case reports, 1 preclinical study) that describe the effects of cerebellar circuitry modulation in patients with schizophrenia or animal models of psychosis. Published studies up to October 11, 2022 were identified from a search within PubMed, Scopus, and PsycInfo.<h3>Results</h3>Most studies stimulating the cerebellum used transcranial magnetic stimulation or transcranial direct-current stimulation, specifically targeting the cerebellar vermis/midline. Accounting for levels of methodological rigor across studies, these studies detected post-cerebellar modulation in schizophrenia as indicated by the alleviation of certain clinical symptoms (mainly negative and depressive symptoms), as well as increased frontal-cerebellar connectivity and augmentation of canonical neuro-oscillations known to be abnormal in schizophrenia. In contrast to a prior review, we did not find consistent evidence for cognitive improvements following cerebellar modulation stimulation. Modern cerebellar stimulation methods appear tolerable for individuals with schizophrenia, with only mild and temporary side effects.<h3>Conclusion</h3>Cerebellar stimulation is a promising intervention for individuals with schizophrenia that may be more relevant to some symptom domains than others. Initial results highlight the need for continued research using more methodologically rigorous designs, such as additional longitudinal and randomized controlled trials.<h3>Systematic review registration</h3>[https://www.crd.york.ac.uk/prospero/], identifier [CRD42022346667].</div></div><div class="c-scholworks__media"><ul class="c-medialist"></ul></div></div><div class="c-scholworks__ancillary"><a class="c-scholworks__thumbnail" href="/uc/item/5nx15580"><img src="/cms-assets/d90c52f0f81d14d216ac6d0c7043cea143feb031c5f6417b84c1ac97f4c53219" alt="Cover page: Cerebellar stimulation in schizophrenia: A systematic review of the evidence and an overview of the methods."/></a><a href="https://creativecommons.org/licenses/by/4.0/" class="c-scholworks__license"><img class="c-lazyimage" data-src="/images/cc-by-small.svg" alt="Creative Commons 'BY' version 4.0 license"/></a></div></section><section class="c-scholworks"><div class="c-scholworks__main-column"><ul class="c-scholworks__tag-list"><li class="c-scholworks__tag-article">Article</li><li class="c-scholworks__tag-peer">Peer Reviewed</li></ul><div><h3 class="c-scholworks__heading"><a href="/uc/item/78t261nw"><div class="c-clientmarkup">Theta Phase Synchrony Is Sensitive to Corollary Discharge Abnormalities in Early Illness Schizophrenia but Not in the Psychosis Risk Syndrome</div></a></h3></div><div class="c-authorlist"><ul class="c-authorlist__list"><li class="c-authorlist__begin"><a href="/search/?q=author%3ARoach%2C%20Brian%20J">Roach, Brian J</a>; </li><li><a href="/search/?q=author%3AFord%2C%20Judith%20M">Ford, Judith M</a>; </li><li><a href="/search/?q=author%3ALoewy%2C%20Rachel%20L">Loewy, Rachel L</a>; </li><li><a href="/search/?q=author%3AStuart%2C%20Barbara%20K">Stuart, Barbara K</a>; </li><li class="c-authorlist__end"><a href="/search/?q=author%3AMathalon%2C%20Daniel%20H">Mathalon, Daniel H</a> </li></ul></div><div class="c-scholworks__publication"><a href="/uc/ucsf_postprints">UC San Francisco Previously Published Works</a> (2021)</div><div class="c-scholworks__abstract"><div class="c-clientmarkup"><h3>Background</h3>Prior studies have shown that the auditory N1 event-related potential component elicited by self-generated vocalizations is reduced relative to played back vocalizations, putatively reflecting a corollary discharge mechanism. Schizophrenia patients and psychosis risk syndrome (PRS) youth show deficient N1 suppression during vocalization, consistent with corollary discharge dysfunction. Because N1 is an admixture of theta (4-7 Hz) power and phase synchrony, we examined their contributions to N1 suppression during vocalization, as well as their sensitivity, relative to N1, to corollary discharge dysfunction in schizophrenia and PRS individuals.<h3>Methods</h3>Theta phase and power values were extracted from electroencephalography data acquired from PRS youth (n = 71), early illness schizophrenia patients (ESZ; n = 84), and healthy controls (HCs; n = 103) as they said "ah" (Talk) and then listened to the playback of their vocalizations (Listen). A principal component analysis extracted theta intertrial coherence (ITC; phase consistency) and event-related spectral power, peaking in the N1 latency range. Talk-Listen suppression scores were analyzed.<h3>Results</h3>Talk-Listen suppression was greater for theta ITC (Cohen's d = 1.46) than for N1 in HC (d = 0.63). Both were deficient in ESZ, but only N1 suppression was deficient in PRS. When deprived of variance shared with theta ITC suppression, N1 suppression no longer differentiated ESZ and PRS individuals from HC. Deficits in theta ITC suppression were correlated with delusions (P = .007) in ESZ. Theta power suppression did not differentiate groups.<h3>Conclusions</h3>Theta ITC-suppression during vocalization is a more sensitive index of corollary discharge-mediated auditory cortical suppression than N1 suppression and is more sensitive to corollary discharge dysfunction in ESZ than in PRS individuals.</div></div><div class="c-scholworks__media"><ul class="c-medialist"></ul></div></div><div class="c-scholworks__ancillary"><a class="c-scholworks__thumbnail" href="/uc/item/78t261nw"><img src="/cms-assets/ca0b36757bf753c0a551eec0eb23dc460818962ea328c49c15cc7b5fcc9099c9" alt="Cover page: Theta Phase Synchrony Is Sensitive to Corollary Discharge Abnormalities in Early Illness Schizophrenia but Not in the Psychosis Risk Syndrome"/></a></div></section><section class="c-scholworks"><div class="c-scholworks__main-column"><ul class="c-scholworks__tag-list"><li class="c-scholworks__tag-article">Article</li><li class="c-scholworks__tag-peer">Peer Reviewed</li></ul><div><h3 class="c-scholworks__heading"><a href="/uc/item/2165k383"><div class="c-clientmarkup">Did I Do That? Abnormal Predictive Processes in Schizophrenia When Button Pressing to Deliver a Tone</div></a></h3></div><div class="c-authorlist"><ul class="c-authorlist__list"><li class="c-authorlist__begin"><a href="/search/?q=author%3AFord%2C%20Judith%20M">Ford, Judith M</a>; </li><li><a href="/search/?q=author%3APalzes%2C%20Vanessa%20A">Palzes, Vanessa A</a>; </li><li><a href="/search/?q=author%3ARoach%2C%20Brian%20J">Roach, Brian J</a>; </li><li class="c-authorlist__end"><a href="/search/?q=author%3AMathalon%2C%20Daniel%20H">Mathalon, Daniel H</a> </li></ul></div><div class="c-scholworks__publication"><a href="/uc/ucsf_postprints">UC San Francisco Previously Published Works</a> (2014)</div><div class="c-scholworks__abstract"><div class="c-clientmarkup">Motor actions are preceded by an efference copy of the motor command, resulting in a corollary discharge of the expected sensation in sensory cortex. These mechanisms allow animals to predict sensations, suppress responses to self-generated sensations, and thereby process sensations efficiently and economically. During talking, patients with schizophrenia show less evidence of pretalking activity and less suppression of the speech sound, consistent with dysfunction of efference copy and corollary discharge, respectively. We asked if patterns seen in talking would generalize to pressing a button to hear a tone, a paradigm translatable to less vocal animals. In 26 patients [23 schizophrenia, 3 schizoaffective (SZ)] and 22 healthy controls (HC), suppression of the N1 component of the auditory event-related potential was estimated by comparing N1 to tones delivered by button presses and N1 to those tones played back. The lateralized readiness potential (LRP) associated with the motor plan preceding presses to deliver tones was estimated by comparing right and left hemispheres' neural activity. The relationship between N1 suppression and LRP amplitude was assessed. LRP preceding button presses to deliver tones was larger in HC than SZ, as was N1 suppression. LRP amplitude and N1 suppression were correlated in both groups, suggesting stronger efference copies are associated with stronger corollary discharges. SZ have reduced N1 suppression, reflecting corollary discharge action, and smaller LRPs preceding button presses to deliver tones, reflecting the efference copy of the motor plan. Effects seen during vocalization largely extend to other motor acts more translatable to lab animals.</div></div><div class="c-scholworks__media"><ul class="c-medialist"></ul></div></div><div class="c-scholworks__ancillary"><a class="c-scholworks__thumbnail" href="/uc/item/2165k383"><img src="/cms-assets/e1edeb918771fbe027cfc9215cc9f46668fea186d410ab15098f92657d95f231" alt="Cover page: Did I Do That? Abnormal Predictive Processes in Schizophrenia When Button Pressing to Deliver a Tone"/></a></div></section><section class="c-scholworks"><div class="c-scholworks__main-column"><ul class="c-scholworks__tag-list"><li class="c-scholworks__tag-article">Article</li><li class="c-scholworks__tag-peer">Peer Reviewed</li></ul><div><h3 class="c-scholworks__heading"><a href="/uc/item/6qt123x9"><div class="c-clientmarkup">Aberrant activity in conceptual networks underlies N400 deficits and unusual thoughts in schizophrenia</div></a></h3></div><div class="c-authorlist"><ul class="c-authorlist__list"><li class="c-authorlist__begin"><a href="/search/?q=author%3AJacob%2C%20Michael%20S">Jacob, Michael S</a>; </li><li><a href="/search/?q=author%3AFord%2C%20Judith%20M">Ford, Judith M</a>; </li><li><a href="/search/?q=author%3ARoach%2C%20Brian%20J">Roach, Brian J</a>; </li><li><a href="/search/?q=author%3ACalhoun%2C%20Vince%20D">Calhoun, Vince D</a>; </li><li class="c-authorlist__end"><a href="/search/?q=author%3AMathalon%2C%20Daniel%20H">Mathalon, Daniel H</a> </li></ul></div><div class="c-scholworks__publication"><a href="/uc/ucsf_postprints">UC San Francisco Previously Published Works</a> (2019)</div><div class="c-scholworks__abstract"><div class="c-clientmarkup"><h3>Background</h3>The N400 event-related potential (ERP) is triggered by meaningful stimuli that are incongruous, or unmatched, with their semantic context. Functional magnetic resonance imaging (fMRI) studies have identified brain regions activated by semantic incongruity, but their precise links to the N400 ERP are unclear. In schizophrenia (SZ), N400 amplitude reduction is thought to reflect overly broad associations in semantic networks, but the abnormalities in brain networks underlying deficient N400 remain unknown. We utilized joint independent component analysis (JICA) to link temporal patterns in ERPs to neuroanatomical patterns from fMRI and investigate relationships between N400 amplitude and neuroanatomical activation in SZ patients and healthy controls (HC).<h3>Methods</h3>SZ patients (n = 24) and HC participants (n = 25) performed a picture-word matching task, in which words were either matched (APPLE→apple) by preceding pictures, or were unmatched by semantically related (in-category; IC, APPLE→lemon) or unrelated (out of category; OC, APPLE→cow) pictures, in separate ERP and fMRI sessions. A JICA "data fusion" analysis was conducted to identify the fMRI brain regions specifically associated with the ERP N400 component. SZ and HC loading weights were compared and correlations with clinical symptoms were assessed.<h3>Results</h3>JICA identified an ERP-fMRI "fused" component that captured the N400, with loading weights that were reduced in SZ. The JICA map for the IC condition showed peaks of activation in the cingulate, precuneus, bilateral temporal poles and cerebellum, whereas the JICA map from the OC condition was linked primarily to visual cortical activation and the left temporal pole. Among SZ patients, fMRI activity from the IC condition was inversely correlated with unusual thought content.<h3>Conclusions</h3>The neural networks associated with the N400 ERP response to semantic violations depends on conceptual relatedness. These findings are consistent with a distributed network underlying neural responses to semantic incongruity including unimodal visual areas as well as integrative, transmodal areas. Unusual thoughts in SZ may reflect impaired processing in transmodal hub regions such as the precuneus, leading to overly broad semantic associations.</div></div><div class="c-scholworks__media"><ul class="c-medialist"></ul></div></div><div class="c-scholworks__ancillary"><a class="c-scholworks__thumbnail" href="/uc/item/6qt123x9"><img src="/cms-assets/dfd2a80ef400dfe2f0a92101ce052a0e34b647fe6fbed834f08ec61ddf952849" alt="Cover page: Aberrant activity in conceptual networks underlies N400 deficits and unusual thoughts in schizophrenia"/></a></div></section><section class="c-scholworks"><div class="c-scholworks__main-column"><ul class="c-scholworks__tag-list"><li class="c-scholworks__tag-article">Article</li><li class="c-scholworks__tag-peer">Peer Reviewed</li></ul><div><h3 class="c-scholworks__heading"><a href="/uc/item/8vf2392x"><div class="c-clientmarkup">Corrigendum: Inefficient Preparatory fMRI-BOLD Network Activations Predict Working Memory Dysfunctions in Patients with Schizophrenia</div></a></h3></div><div class="c-authorlist"><ul class="c-authorlist__list"><li class="c-authorlist__begin"><a href="/search/?q=author%3ABaenninger%2C%20Anja">Baenninger, Anja</a>; </li><li><a href="/search/?q=author%3AHernandez%2C%20Laura%20Diaz">Hernandez, Laura Diaz</a>; </li><li><a href="/search/?q=author%3ARieger%2C%20Kathryn">Rieger, Kathryn</a>; </li><li><a href="/search/?q=author%3AFord%2C%20Judith%20M">Ford, Judith M</a>; </li><li><a href="/search/?q=author%3AKottlow%2C%20Mara">Kottlow, Mara</a>; </li><li class="c-authorlist__end"><a href="/search/?q=author%3AKoenig%2C%20Thomas">Koenig, Thomas</a> </li></ul></div><div class="c-scholworks__publication"><a href="/uc/ucsf_postprints">UC San Francisco Previously Published Works</a> (2016)</div><div class="c-scholworks__abstract"><div class="c-clientmarkup">[This corrects the article on p. 29 in vol. 7, PMID: 27047395.].</div></div><div class="c-scholworks__media"><ul class="c-medialist"></ul></div></div><div class="c-scholworks__ancillary"><a class="c-scholworks__thumbnail" href="/uc/item/8vf2392x"><img src="/cms-assets/5c98db274ff69478094dc024875f7b42fe275ce7e9c1d4cd2e0bdf29d05806c7" alt="Cover page: Corrigendum: Inefficient Preparatory fMRI-BOLD Network Activations Predict Working Memory Dysfunctions in Patients with Schizophrenia"/></a></div></section><nav class="c-pagination--next"><ul><li><a href="" aria-label="you are on result set 1" class="c-pagination__item--current">1</a></li><li><a href="" aria-label="go to result set 2" class="c-pagination__item">2</a></li><li><a href="" aria-label="go to result set 3" class="c-pagination__item">3</a></li><li><a href="" aria-label="go to result set 4" class="c-pagination__item">4</a></li><li><a href="" aria-label="go to result set 9" class="c-pagination__item">9</a></li><li class="c-pagination__next"><a href="" aria-label="go to Next result set">Next</a></li></ul></nav></section></main></form></div><div><div class="c-toplink"><a 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framework","abstract":"In this paper, I explain why I adopted a Research Domain Criteria (RDoC) approach to study the neurobiology of auditory verbal hallucinations (AVH), or voices. I explain that the RDoC construct of \"agency\" fits well with AVH phenomenology. To the extent that voices sound nonself, voice hearers lack a sense of agency over the voices. Using a vocalization paradigm like those used with nonhuman primates to study mechanisms subserving the sense of agency, we find that the auditory N1 ERP is suppressed during vocalization, that EEG synchrony preceding speech onset is related to N1 suppression, and that both are reduced in patients with schizophrenia. Reduced cortical suppression is also seen across multiple psychotic disorders and in clinically high-risk youth, but it is not related to AVH. The motor activity preceding talking and connectivity between frontal and temporal lobes during talking have both proved sensitive to AVH, suggesting neural activity and connectivity associated with intentions to act may be a better way to study agency and predictions based on agency.","content_type":"application/pdf","author_hide":null,"authors":[{"name":"Ford, Judith M","email":"judith.ford@ucsf.edu","fname":"Judith M","lname":"Ford"}],"supp_files":[{"type":"pdf","count":0},{"type":"image","count":0},{"type":"video","count":0},{"type":"audio","count":0},{"type":"zip","count":0},{"type":"other","count":0}],"thumbnail":{"width":121,"height":149,"asset_id":"ac6aedb41ef68dcfa4211ca1aa95d669fd5784d8c9ad38f93917b4f8213da916","timestamp":1683026484,"image_type":"png"},"pub_year":2016,"genre":"article","rights":null,"peerReviewed":true,"unitInfo":{"displayName":"UC San Francisco Previously Published Works","link_path":"ucsf_postprints"}},{"id":"qt70s740hv","title":"The Role of Ketogenic Metabolic Therapy on the Brain in Serious Mental Illness: A Review","abstract":"In search of interventions targeting brain dysfunction and underlying cognitive impairment in schizophrenia, we look at the brain and beyond to the potential role of dysfunctional systemic metabolism on neural network instability and insulin resistance in serious mental illness. We note that disrupted insulin and cerebral glucose metabolism are seen even in medication-na\u00EFve first-episode schizophrenia, suggesting that people with schizophrenia are at risk for Type 2 diabetes and cardiovascular disease, resulting in a shortened life span. Although glucose is the brain's default fuel, ketones are a more efficient fuel for the brain. We highlight evidence that a ketogenic diet can improve both the metabolic and neural stability profiles. Specifically, a ketogenic diet improves mitochondrial metabolism, neurotransmitter function, oxidative stress/inflammation, while also increasing neural network stability and cognitive function. To reverse the neurodegenerative process, increasing the brain's access to ketone bodies may be needed. We describe evidence that metabolic, neuroprotective, and neurochemical benefits of a ketogenic diet potentially provide symptomatic relief to people with schizophrenia while also improving their cardiovascular or metabolic health. We review evidence for KD side effects and note that although high in fat it improves various cardiovascular and metabolic risk markers in overweight/obese individuals. We conclude by calling for controlled clinical trials to confirm or refute the findings from anecdotal and case reports to address the potential beneficial effects of the ketogenic diet in people with serious mental illness.","content_type":"application/pdf","author_hide":null,"authors":[{"name":"Sethi, Shebani","fname":"Shebani","lname":"Sethi"},{"name":"Ford, Judith M","email":"judith.ford@ucsf.edu","fname":"Judith M","lname":"Ford"}],"supp_files":[{"type":"pdf","count":0},{"type":"image","count":0},{"type":"video","count":0},{"type":"audio","count":0},{"type":"zip","count":0},{"type":"other","count":0}],"thumbnail":{"width":121,"height":149,"asset_id":"093d5d2891b1f0b2a4b21ede98c64a4b60a2c2369731e61c214728a90f9f7b68","timestamp":1689061364,"image_type":"png"},"pub_year":2022,"genre":"article","rights":null,"peerReviewed":true,"unitInfo":{"displayName":"UC San Francisco Previously Published Works","link_path":"ucsf_postprints"}},{"id":"qt00j792m7","title":"Distinguishing Between Schizophrenia and Other Psychotic Disorders","abstract":"The Diagnostic and Statistical Manual of Mental Disorders (DSM) has provided diagnostic reliability across observers while neglecting biological validity. The current theme issue explores the boundaries between schizophrenia and bipolar disorder, using neuro-cognition, systems neuroscience, and genetics as points of departure to begin consideration of a biologically based reclassification of these illnesses.","content_type":"application/pdf","author_hide":null,"authors":[{"name":"Pearlson, Godfrey D","fname":"Godfrey D","lname":"Pearlson"},{"name":"Ford, Judith M","email":"judith.ford@ucsf.edu","fname":"Judith M","lname":"Ford"}],"supp_files":[{"type":"pdf","count":0},{"type":"image","count":0},{"type":"video","count":0},{"type":"audio","count":0},{"type":"zip","count":0},{"type":"other","count":0}],"thumbnail":{"width":121,"height":164,"asset_id":"7863dae8d2f90c2a429af4345714299ab6a68677959806d2b8ef3f27cacde550","timestamp":1680856140,"image_type":"png"},"pub_year":2014,"genre":"article","rights":null,"peerReviewed":true,"unitInfo":{"displayName":"UC San Francisco Previously Published Works","link_path":"ucsf_postprints"}},{"id":"qt4gn5m2xd","title":"Reconciling competing mechanisms posited to underlie auditory verbal hallucinations","abstract":"Perception is not the passive registration of incoming sensory data. Rather, it involves some analysis by synthesis, based on past experiences and context. One adaptive consequence of this arrangement is imagination-the ability to richly simulate sensory experiences, interrogate and manipulate those simulations, in service of action and decision making. In this paper, we will discuss one possible cost of this adaptation, namely hallucinations-perceptions without sensory stimulation, which characterize serious mental illnesses like schizophrenia, but which also occur in neurological illnesses, and-crucially for the present piece-are common also in the non-treatment-seeking population. We will draw upon a framework for imagination that distinguishes voluntary from non-voluntary experiences and explore the extent to which the varieties and features of hallucinations map onto this distinction, with a focus on auditory-verbal hallucinations (AVHs)-colloquially, hearing voices. We will propose that sense of agency for the act of imagining is key to meaningfully dissecting different forms and features of AVHs, and we will outline the neural, cognitive and phenomenological sequelae of this sense. We will conclude that a compelling unifying framework for action, perception and belief-predictive processing-can incorporate observations regarding sense of agency, imagination and hallucination. This article is part of the theme issue 'Offline perception: voluntary and spontaneous perceptual experiences without matching external stimulation'.","content_type":"application/pdf","author_hide":null,"authors":[{"name":"Thakkar, Katharine N","fname":"Katharine N","lname":"Thakkar"},{"name":"Mathalon, Daniel H","email":"daniel.mathalon@ucsf.edu","fname":"Daniel H","lname":"Mathalon","ORCID_id":"0000-0001-6090-4974"},{"name":"Ford, Judith M","email":"judith.ford@ucsf.edu","fname":"Judith M","lname":"Ford"}],"supp_files":[{"type":"pdf","count":0},{"type":"image","count":0},{"type":"video","count":0},{"type":"audio","count":0},{"type":"zip","count":0},{"type":"other","count":0}],"thumbnail":{"width":121,"height":171,"asset_id":"f92bd9be0fff3249359c1ea53df718d3c785f43f84cbbfaf3d4cbc170432a2e9","timestamp":1686870303,"image_type":"png"},"pub_year":2021,"genre":"article","rights":null,"peerReviewed":true,"unitInfo":{"displayName":"UC San Francisco Previously Published Works","link_path":"ucsf_postprints"}},{"id":"qt57t1z7cb","title":"P300 in Schizophrenia: Then and Now","abstract":"The 1965 discovery of the P300 component of the electroencephalography (EEG)-based event-related potential (ERP), along with the subsequent identification of its alteration in people with schizophrenia, initiated over 50 years of P300 research in schizophrenia. Here, we review what we now know about P300 in schizophrenia after nearly six decades of research. We describe recent efforts to expand our understanding of P300 beyond its sensitivity to schizophrenia itself to its potential role as a biomarker of risk for psychosis or a heritable endophenotype that bridges genetic risk and psychosis phenomenology. We also highlight efforts to move beyond a syndrome-based approach to understand P300 within the context of the clinical, cognitive, and presumed pathophysiological heterogeneity among people diagnosed with schizophrenia. Finally, we describe several recent approaches that extend beyond measuring the traditional P300 ERP component in people with schizophrenia, including time-frequency analyses and pharmacological challenge studies, that may help to clarify specific cognitive mechanisms that are disrupted in schizophrenia. Moreover, we discuss several promising areas for future research, including studies of animal models that can be used for treatment development.","content_type":"application/pdf","author_hide":null,"authors":[{"name":"Hamilton, Holly K","fname":"Holly K","lname":"Hamilton"},{"name":"Mathalon, Daniel H","email":"daniel.mathalon@ucsf.edu","fname":"Daniel H","lname":"Mathalon","ORCID_id":"0000-0001-6090-4974"},{"name":"Ford, Judith M","email":"judith.ford@ucsf.edu","fname":"Judith M","lname":"Ford"}],"supp_files":[{"type":"pdf","count":0},{"type":"image","count":0},{"type":"video","count":0},{"type":"audio","count":0},{"type":"zip","count":0},{"type":"other","count":0}],"thumbnail":{"width":121,"height":157,"asset_id":"a1ddb328238bf775c692d974523ac40628b275417d8a7c1e7cbbc452873b2557","timestamp":1709254192,"image_type":"png"},"pub_year":2024,"genre":"article","rights":null,"peerReviewed":true,"unitInfo":{"displayName":"UC San Francisco Previously Published Works","link_path":"ucsf_postprints"}},{"id":"qt5nx15580","title":"Cerebellar stimulation in schizophrenia: A systematic review of the evidence and an overview of the methods.","abstract":"<h4>Background</h4>Cerebellar structural and functional abnormalities underlie widespread deficits in clinical, cognitive, and motor functioning that are observed in schizophrenia. Consequently, the cerebellum is a promising target for novel schizophrenia treatments. Here we conducted an updated systematic review examining the literature on cerebellar stimulation efficacy and tolerability for mitigating symptoms of schizophrenia. We discuss the purported mechanisms of cerebellar stimulation, current methods for implementing stimulation, and future directions of cerebellar stimulation for intervention development with this population.<h4>Methods</h4>Two independent authors identified 20 published studies (7 randomized controlled trials, 7 open-label studies, 1 pilot study, 4 case reports, 1 preclinical study) that describe the effects of cerebellar circuitry modulation in patients with schizophrenia or animal models of psychosis. Published studies up to October 11, 2022 were identified from a search within PubMed, Scopus, and PsycInfo.<h4>Results</h4>Most studies stimulating the cerebellum used transcranial magnetic stimulation or transcranial direct-current stimulation, specifically targeting the cerebellar vermis/midline. Accounting for levels of methodological rigor across studies, these studies detected post-cerebellar modulation in schizophrenia as indicated by the alleviation of certain clinical symptoms (mainly negative and depressive symptoms), as well as increased frontal-cerebellar connectivity and augmentation of canonical neuro-oscillations known to be abnormal in schizophrenia. In contrast to a prior review, we did not find consistent evidence for cognitive improvements following cerebellar modulation stimulation. Modern cerebellar stimulation methods appear tolerable for individuals with schizophrenia, with only mild and temporary side effects.<h4>Conclusion</h4>Cerebellar stimulation is a promising intervention for individuals with schizophrenia that may be more relevant to some symptom domains than others. Initial results highlight the need for continued research using more methodologically rigorous designs, such as additional longitudinal and randomized controlled trials.<h4>Systematic review registration</h4>[https://www.crd.york.ac.uk/prospero/], identifier [CRD42022346667].","content_type":"application/pdf","author_hide":null,"authors":[{"name":"Hua, Jessica PY","fname":"Jessica PY","lname":"Hua"},{"name":"Abram, Samantha V","email":"samantha.abram@ucsf.edu","fname":"Samantha V","lname":"Abram"},{"name":"Ford, Judith M","email":"judith.ford@ucsf.edu","fname":"Judith M","lname":"Ford"}],"supp_files":[{"type":"pdf","count":0},{"type":"image","count":0},{"type":"video","count":0},{"type":"audio","count":0},{"type":"zip","count":0},{"type":"other","count":0}],"thumbnail":{"width":121,"height":189,"asset_id":"d90c52f0f81d14d216ac6d0c7043cea143feb031c5f6417b84c1ac97f4c53219","timestamp":1688846794,"image_type":"png"},"pub_year":2022,"genre":"article","rights":"https://creativecommons.org/licenses/by/4.0/","peerReviewed":true,"unitInfo":{"displayName":"UC San Francisco Previously Published Works","link_path":"ucsf_postprints"}},{"id":"qt78t261nw","title":"Theta Phase Synchrony Is Sensitive to Corollary Discharge Abnormalities in Early Illness Schizophrenia but Not in the Psychosis Risk Syndrome","abstract":"<h4>Background</h4>Prior studies have shown that the auditory N1 event-related potential component elicited by self-generated vocalizations is reduced relative to played back vocalizations, putatively reflecting a corollary discharge mechanism. Schizophrenia patients and psychosis risk syndrome (PRS) youth show deficient N1 suppression during vocalization, consistent with corollary discharge dysfunction. Because N1 is an admixture of theta (4-7 Hz) power and phase synchrony, we examined their contributions to N1 suppression during vocalization, as well as their sensitivity, relative to N1, to corollary discharge dysfunction in schizophrenia and PRS individuals.<h4>Methods</h4>Theta phase and power values were extracted from electroencephalography data acquired from PRS youth (n = 71), early illness schizophrenia patients (ESZ; n = 84), and healthy controls (HCs; n = 103) as they said \"ah\" (Talk) and then listened to the playback of their vocalizations (Listen). A principal component analysis extracted theta intertrial coherence (ITC; phase consistency) and event-related spectral power, peaking in the N1 latency range. Talk-Listen suppression scores were analyzed.<h4>Results</h4>Talk-Listen suppression was greater for theta ITC (Cohen's d = 1.46) than for N1 in HC (d = 0.63). Both were deficient in ESZ, but only N1 suppression was deficient in PRS. When deprived of variance shared with theta ITC suppression, N1 suppression no longer differentiated ESZ and PRS individuals from HC. Deficits in theta ITC suppression were correlated with delusions (P = .007) in ESZ. Theta power suppression did not differentiate groups.<h4>Conclusions</h4>Theta ITC-suppression during vocalization is a more sensitive index of corollary discharge-mediated auditory cortical suppression than N1 suppression and is more sensitive to corollary discharge dysfunction in ESZ than in PRS individuals.","content_type":"application/pdf","author_hide":null,"authors":[{"name":"Roach, Brian J","fname":"Brian J","lname":"Roach"},{"name":"Ford, Judith M","email":"judith.ford@ucsf.edu","fname":"Judith M","lname":"Ford"},{"name":"Loewy, Rachel L","fname":"Rachel L","lname":"Loewy"},{"name":"Stuart, Barbara K","fname":"Barbara K","lname":"Stuart"},{"name":"Mathalon, Daniel H","email":"daniel.mathalon@ucsf.edu","fname":"Daniel H","lname":"Mathalon","ORCID_id":"0000-0001-6090-4974"}],"supp_files":[{"type":"pdf","count":0},{"type":"image","count":0},{"type":"video","count":0},{"type":"audio","count":0},{"type":"zip","count":0},{"type":"other","count":0}],"thumbnail":{"width":121,"height":165,"asset_id":"ca0b36757bf753c0a551eec0eb23dc460818962ea328c49c15cc7b5fcc9099c9","timestamp":1686449954,"image_type":"png"},"pub_year":2021,"genre":"article","rights":null,"peerReviewed":true,"unitInfo":{"displayName":"UC San Francisco Previously Published Works","link_path":"ucsf_postprints"}},{"id":"qt2165k383","title":"Did I Do That? Abnormal Predictive Processes in Schizophrenia When Button Pressing to Deliver a Tone","abstract":"Motor actions are preceded by an efference copy of the motor command, resulting in a corollary discharge of the expected sensation in sensory cortex. These mechanisms allow animals to predict sensations, suppress responses to self-generated sensations, and thereby process sensations efficiently and economically. During talking, patients with schizophrenia show less evidence of pretalking activity and less suppression of the speech sound, consistent with dysfunction of efference copy and corollary discharge, respectively. We asked if patterns seen in talking would generalize to pressing a button to hear a tone, a paradigm translatable to less vocal animals. In 26 patients [23 schizophrenia, 3 schizoaffective (SZ)] and 22 healthy controls (HC), suppression of the N1 component of the auditory event-related potential was estimated by comparing N1 to tones delivered by button presses and N1 to those tones played back. The lateralized readiness potential (LRP) associated with the motor plan preceding presses to deliver tones was estimated by comparing right and left hemispheres' neural activity. The relationship between N1 suppression and LRP amplitude was assessed. LRP preceding button presses to deliver tones was larger in HC than SZ, as was N1 suppression. LRP amplitude and N1 suppression were correlated in both groups, suggesting stronger efference copies are associated with stronger corollary discharges. SZ have reduced N1 suppression, reflecting corollary discharge action, and smaller LRPs preceding button presses to deliver tones, reflecting the efference copy of the motor plan. Effects seen during vocalization largely extend to other motor acts more translatable to lab animals.","content_type":"application/pdf","author_hide":null,"authors":[{"name":"Ford, Judith M","email":"judith.ford@ucsf.edu","fname":"Judith M","lname":"Ford"},{"name":"Palzes, Vanessa A","fname":"Vanessa A","lname":"Palzes"},{"name":"Roach, Brian J","fname":"Brian J","lname":"Roach"},{"name":"Mathalon, Daniel H","email":"daniel.mathalon@ucsf.edu","fname":"Daniel H","lname":"Mathalon","ORCID_id":"0000-0001-6090-4974"}],"supp_files":[{"type":"pdf","count":0},{"type":"image","count":0},{"type":"video","count":0},{"type":"audio","count":0},{"type":"zip","count":0},{"type":"other","count":0}],"thumbnail":{"width":121,"height":164,"asset_id":"e1edeb918771fbe027cfc9215cc9f46668fea186d410ab15098f92657d95f231","timestamp":1680544392,"image_type":"png"},"pub_year":2014,"genre":"article","rights":null,"peerReviewed":true,"unitInfo":{"displayName":"UC San Francisco Previously Published Works","link_path":"ucsf_postprints"}},{"id":"qt6qt123x9","title":"Aberrant activity in conceptual networks underlies N400 deficits and unusual thoughts in schizophrenia","abstract":"<h4>Background</h4>The N400 event-related potential (ERP) is triggered by meaningful stimuli that are incongruous, or unmatched, with their semantic context. Functional magnetic resonance imaging (fMRI) studies have identified brain regions activated by semantic incongruity, but their precise links to the N400 ERP are unclear. In schizophrenia (SZ), N400 amplitude reduction is thought to reflect overly broad associations in semantic networks, but the abnormalities in brain networks underlying deficient N400 remain unknown. We utilized joint independent component analysis (JICA) to link temporal patterns in ERPs to neuroanatomical patterns from fMRI and investigate relationships between N400 amplitude and neuroanatomical activation in SZ patients and healthy controls (HC).<h4>Methods</h4>SZ patients (n\u202F=\u202F24) and HC participants (n\u202F=\u202F25) performed a picture-word matching task, in which words were either matched (APPLE\u2192apple) by preceding pictures, or were unmatched by semantically related (in-category; IC, APPLE\u2192lemon) or unrelated (out of category; OC, APPLE\u2192cow) pictures, in separate ERP and fMRI sessions. A JICA \"data fusion\" analysis was conducted to identify the fMRI brain regions specifically associated with the ERP N400 component. SZ and HC loading weights were compared and correlations with clinical symptoms were assessed.<h4>Results</h4>JICA identified an ERP-fMRI \"fused\" component that captured the N400, with loading weights that were reduced in SZ. The JICA map for the IC condition showed peaks of activation in the cingulate, precuneus, bilateral temporal poles and cerebellum, whereas the JICA map from the OC condition was linked primarily to visual cortical activation and the left temporal pole. Among SZ patients, fMRI activity from the IC condition was inversely correlated with unusual thought content.<h4>Conclusions</h4>The neural networks associated with the N400 ERP response to semantic violations depends on conceptual relatedness. These findings are consistent with a distributed network underlying neural responses to semantic incongruity including unimodal visual areas as well as integrative, transmodal areas. Unusual thoughts in SZ may reflect impaired processing in transmodal hub regions such as the precuneus, leading to overly broad semantic associations.","content_type":"application/pdf","author_hide":null,"authors":[{"name":"Jacob, Michael S","fname":"Michael S","lname":"Jacob"},{"name":"Ford, Judith M","fname":"Judith M","lname":"Ford"},{"name":"Roach, Brian J","fname":"Brian J","lname":"Roach"},{"name":"Calhoun, Vince D","fname":"Vince D","lname":"Calhoun"},{"name":"Mathalon, Daniel H","fname":"Daniel H","lname":"Mathalon"}],"supp_files":[{"type":"pdf","count":0},{"type":"image","count":0},{"type":"video","count":0},{"type":"audio","count":0},{"type":"zip","count":0},{"type":"other","count":0}],"thumbnail":{"width":121,"height":168,"asset_id":"dfd2a80ef400dfe2f0a92101ce052a0e34b647fe6fbed834f08ec61ddf952849","timestamp":1589685410,"image_type":"png"},"pub_year":2019,"genre":"article","rights":null,"peerReviewed":true,"unitInfo":{"displayName":"UC San Francisco Previously Published Works","link_path":"ucsf_postprints"}},{"id":"qt8vf2392x","title":"Corrigendum: Inefficient Preparatory fMRI-BOLD Network Activations Predict Working Memory Dysfunctions in Patients with Schizophrenia","abstract":"[This corrects the article on p. 29 in vol. 7, PMID: 27047395.].","content_type":"application/pdf","author_hide":null,"authors":[{"name":"Baenninger, Anja","fname":"Anja","lname":"Baenninger"},{"name":"Hernandez, Laura Diaz","fname":"Laura Diaz","lname":"Hernandez"},{"name":"Rieger, Kathryn","fname":"Kathryn","lname":"Rieger"},{"name":"Ford, Judith M","email":"judith.ford@ucsf.edu","fname":"Judith M","lname":"Ford"},{"name":"Kottlow, Mara","fname":"Mara","lname":"Kottlow"},{"name":"Koenig, Thomas","fname":"Thomas","lname":"Koenig"}],"supp_files":[{"type":"pdf","count":0},{"type":"image","count":0},{"type":"video","count":0},{"type":"audio","count":0},{"type":"zip","count":0},{"type":"other","count":0}],"thumbnail":{"width":121,"height":172,"asset_id":"5c98db274ff69478094dc024875f7b42fe275ce7e9c1d4cd2e0bdf29d05806c7","timestamp":1612793961,"image_type":"png"},"pub_year":2016,"genre":"article","rights":null,"peerReviewed":true,"unitInfo":{"displayName":"UC San Francisco Previously Published Works","link_path":"ucsf_postprints"}}],"facets":[{"display":"Type of Work","fieldName":"type_of_work","facets":[{"value":"article","count":84,"displayName":"Article"},{"value":"monograph","count":0,"displayName":"Book"},{"value":"dissertation","count":0,"displayName":"Theses"},{"value":"multimedia","count":0,"displayName":"Multimedia"}]},{"display":"Peer Review","fieldName":"peer_reviewed","facets":[{"value":"1","count":84,"displayName":"Peer-reviewed only"}]},{"display":"Supplemental 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