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<!DOCTYPE html> <html > <head> <meta charset="utf-8"> <meta rel="search" type="application/opensearchdescription+xml" href="/open_search.xml" title="Academia.edu"> <meta content="width=device-width, initial-scale=1" name="viewport"> <meta name="google-site-verification" content="bKJMBZA7E43xhDOopFZkssMMkBRjvYERV-NaN4R6mrs"> <meta name="csrf-param" content="authenticity_token" /> <meta name="csrf-token" content="wXTiDkiHkG+vG36GPjhrBy08Q57iDpqT0HbopaOcTeWAKBYOm5EZfYqhpCXt5RL2NfsRcPBl2vCPLQoKIQgQ+A==" /> <meta name="citation_title" content="Feature selectivity of the gamma-band of the local field potential in primate primary visual cortex" /> <meta name="citation_publication_date" content="2008/01/01" /> <meta name="citation_journal_title" content="Frontiers in …" /> <meta name="citation_author" content="Georgios A Keliris" /> <meta name="twitter:card" content="summary" /> <meta name="twitter:url" content="https://www.academia.edu/482417/Feature_selectivity_of_the_gamma_band_of_the_local_field_potential_in_primate_primary_visual_cortex" /> <meta name="twitter:title" content="Feature selectivity of the gamma-band of the local field potential in primate primary visual cortex" /> <meta name="twitter:description" content="Extracellular voltage fluctuations (local field potentials, LFPs) reflecting neural mass action are ubiquitous across species and brain regions. Numerous studies have characterized the properties of LFP signals in the cortex to study sensory and" /> <meta name="twitter:image" content="https://0.academia-photos.com/272708/66918/18688077/s200_georgios.keliris.jpg" /> <meta property="fb:app_id" content="2369844204" /> <meta property="og:type" content="article" /> <meta property="og:url" content="https://www.academia.edu/482417/Feature_selectivity_of_the_gamma_band_of_the_local_field_potential_in_primate_primary_visual_cortex" /> <meta property="og:title" content="Feature selectivity of the gamma-band of the local field potential in primate primary visual cortex" /> <meta property="og:image" content="http://a.academia-assets.com/images/open-graph-icons/fb-paper.gif" /> <meta property="og:description" content="Extracellular voltage fluctuations (local field potentials, LFPs) reflecting neural mass action are ubiquitous across species and brain regions. Numerous studies have characterized the properties of LFP signals in the cortex to study sensory and" /> <meta property="article:author" content="https://antwerp.academia.edu/GeorgiosKeliris" /> <meta name="description" content="Extracellular voltage fluctuations (local field potentials, LFPs) reflecting neural mass action are ubiquitous across species and brain regions. Numerous studies have characterized the properties of LFP signals in the cortex to study sensory and" /> <title>(PDF) Feature selectivity of the gamma-band of the local field potential in primate primary visual cortex | Georgios A Keliris - Academia.edu</title> <link rel="canonical" href="https://www.academia.edu/26036315/Feature_selectivity_of_the_gamma_band_of_the_local_field_potential_in_primate_primary_visual_cortex" /> <script async src="https://www.googletagmanager.com/gtag/js?id=G-5VKX33P2DS"></script> <script> window.dataLayer = window.dataLayer || []; function gtag(){dataLayer.push(arguments);} gtag('js', new Date()); gtag('config', 'G-5VKX33P2DS', { cookie_domain: 'academia.edu', send_page_view: false, }); gtag('event', 'page_view', { 'controller': "single_work", 'action': "show", 'controller_action': 'single_work#show', 'logged_in': 'false', 'edge': 'unknown', // Send nil if there is no A/B test bucket, in case some records get logged // with missing data - that way we can distinguish between the two cases. // ab_test_bucket should be of the form <ab_test_name>:<bucket> 'ab_test_bucket': null, }) </script> <script> var $controller_name = 'single_work'; var $action_name = "show"; var $rails_env = 'production'; var $app_rev = '92477ec68c09d28ae4730a4143c926f074776319'; var $domain = 'academia.edu'; var $app_host = "academia.edu"; var $asset_host = "academia-assets.com"; var $start_time = new Date().getTime(); var $recaptcha_key = "6LdxlRMTAAAAADnu_zyLhLg0YF9uACwz78shpjJB"; var $recaptcha_invisible_key = "6Lf3KHUUAAAAACggoMpmGJdQDtiyrjVlvGJ6BbAj"; var $disableClientRecordHit = false; </script> <script> window.require = { config: function() { return function() {} } } </script> <script> window.Aedu = window.Aedu || {}; window.Aedu.hit_data = null; window.Aedu.serverRenderTime = new Date(1732844875000); window.Aedu.timeDifference = new Date().getTime() - 1732844875000; </script> <script type="application/ld+json">{"@context":"https://schema.org","@type":"ScholarlyArticle","abstract":"Extracellular voltage fluctuations (local field potentials, LFPs) reflecting neural mass action are ubiquitous across species and brain regions. Numerous studies have characterized the properties of LFP signals in the cortex to study sensory and motor computations as well as cognitive processes like attention, perception and memory. In addition, its extracranial counterpart – the electroencephalogram – is widely used in clinical applications. However, the link between LFP signals and the underlying activity of local populations of neurons remains largely elusive. Here, we review recent work elucidating the relationship between spiking activity of local neural populations and LFP signals. We focus on oscillations in the gamma-band (30–90 Hz) of the LFP in the primary visual cortex (V1) of the macaque that dominate during visual stimulation. Given that in area V1 much is known about the properties of single neurons and the cortical architecture, it provides an excellent opportunity to study the mechanisms underlying the generation of the LFP.","author":[{"@context":"https://schema.org","@type":"Person","name":"Georgios A Keliris"}],"contributor":[],"dateCreated":"2011-03-20","dateModified":"2014-04-22","datePublished":"2008-01-01","headline":"Feature selectivity of the gamma-band of the local field potential in primate primary visual cortex","inLanguage":"en","keywords":[],"locationCreated":null,"publication":"Frontiers in …","publisher":{"@context":"https://schema.org","@type":"Organization","name":"ncbi.nlm.nih.gov"},"image":null,"thumbnailUrl":null,"url":"https://www.academia.edu/482417/Feature_selectivity_of_the_gamma_band_of_the_local_field_potential_in_primate_primary_visual_cortex","sourceOrganization":[{"@context":"https://schema.org","@type":"EducationalOrganization","name":"antwerp"}]}</script><link 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LFPs) reflecting neural mass action are ubiquitous across species and brain regions. Numerous studies have characterized the properties of LFP signals in the cortex to study sensory and motor computations as well as cognitive processes like attention, perception and memory. In addition, its extracranial counterpart – the electroencephalogram – is widely used in clinical applications. However, the link between LFP signals and the underlying activity of local populations of neurons remains largely elusive. Here, we review recent work elucidating the relationship between spiking activity of local neural populations and LFP signals. We focus on oscillations in the gamma-band (30–90 Hz) of the LFP in the primary visual cortex (V1) of the macaque that dominate during visual stimulation. Given that in area V1 much is known about the properties of single neurons and the cortical architecture, it provides an excellent opportunity to study the mechanisms underlying the generation of the LFP.","publisher":"ncbi.nlm.nih.gov","publication_date":"2008,1,1","publication_name":"Frontiers in …"},"document_type":"paper","pre_hit_view_count_baseline":null,"quality":"high","language":"en","title":"Feature selectivity of the gamma-band of the local field potential in primate primary visual cortex","broadcastable":true,"draft":null,"has_indexable_attachment":true,"indexable":true}}["work"]; window.loswp.workCoauthors = [272708]; window.loswp.locale = "en"; window.loswp.countryCode = "SG"; window.loswp.cwvAbTestBucket = ""; window.loswp.designVariant = "ds_vanilla"; window.loswp.fullPageMobileSutdModalVariant = "full_page_mobile_sutd_modal"; window.loswp.useOptimizedScribd4genScript = false; window.loswp.appleClientId = 'edu.academia.applesignon';</script><script defer="" src="https://accounts.google.com/gsi/client"></script><div class="ds-loswp-container"><div class="ds-work-card--grid-container"><div class="ds-work-card--container js-loswp-work-card"><div class="ds-work-card--cover"><div class="ds-work-cover--wrapper"><div class="ds-work-cover--container"><button class="ds-work-cover--clickable js-swp-download-button" data-signup-modal="{"location":"swp-splash-paper-cover","attachmentId":51391107,"attachmentType":"pdf"}"><img alt="First page of “Feature selectivity of the gamma-band of the local field potential in primate primary visual cortex”" class="ds-work-cover--cover-thumbnail" src="https://0.academia-photos.com/attachment_thumbnails/51391107/mini_magick20190125-28355-ud6zva.png?1548455334" /><img alt="PDF Icon" class="ds-work-cover--file-icon" src="//a.academia-assets.com/assets/single_work_splash/adobe.icon-574afd46eb6b03a77a153a647fb47e30546f9215c0ee6a25df597a779717f9ef.svg" /><div class="ds-work-cover--hover-container"><span class="material-symbols-outlined" style="font-size: 20px" translate="no">download</span><p>Download Free PDF</p></div><div class="ds-work-cover--ribbon-container">Download Free PDF</div><div class="ds-work-cover--ribbon-triangle"></div></button></div></div></div><div class="ds-work-card--work-information"><h1 class="ds-work-card--work-title">Feature selectivity of the gamma-band of the local field potential in primate primary visual cortex</h1><div class="ds-work-card--work-authors ds-work-card--detail"><a class="ds-work-card--author js-wsj-grid-card-author ds2-5-body-md ds2-5-body-link" data-author-id="272708" href="https://antwerp.academia.edu/GeorgiosKeliris"><img alt="Profile image of Georgios A Keliris" class="ds-work-card--author-avatar" src="https://0.academia-photos.com/272708/66918/18688077/s65_georgios.keliris.jpg" />Georgios A Keliris</a></div><div class="ds-work-card--detail"><p class="ds-work-card--detail ds2-5-body-sm">2008, Frontiers in …</p><div class="ds-work-card--work-metadata"><div class="ds-work-card--work-metadata__stat"><span class="material-symbols-outlined" style="font-size: 20px" translate="no">visibility</span><p class="ds2-5-body-sm" id="work-metadata-view-count">…</p></div><div class="ds-work-card--work-metadata__stat"><span class="material-symbols-outlined" style="font-size: 20px" translate="no">description</span><p class="ds2-5-body-sm">10 pages</p></div><div class="ds-work-card--work-metadata__stat"><span class="material-symbols-outlined" style="font-size: 20px" translate="no">link</span><p class="ds2-5-body-sm">1 file</p></div></div><script>(async () => { const workId = 482417; const worksViewsPath = "/v0/works/views?subdomain_param=api&work_ids%5B%5D=482417"; const getWorkViews = async (workId) => { const response = await fetch(worksViewsPath); if (!response.ok) { throw new Error('Failed to load work views'); } const data = await response.json(); return data.views[workId]; }; // Get the view count for the work - we send this immediately rather than waiting for // the DOM to load, so it can be available as soon as possible (but without holding up // the backend or other resource requests, because it's a bit expensive and not critical). const viewCount = await getWorkViews(workId); const updateViewCount = (viewCount) => { const viewCountNumber = Number(viewCount); if (!viewCountNumber) { throw new Error('Failed to parse view count'); } const commaizedViewCount = viewCountNumber.toLocaleString(); const viewCountBody = document.getElementById('work-metadata-view-count'); if (viewCountBody) { viewCountBody.textContent = `${commaizedViewCount} views`; } else { throw new Error('Failed to find work views element'); } }; // If the DOM is still loading, wait for it to be ready before updating the view count. if (document.readyState === "loading") { document.addEventListener('DOMContentLoaded', () => { updateViewCount(viewCount); }); // Otherwise, just update it immediately. } else { updateViewCount(viewCount); } })();</script></div><p class="ds-work-card--work-abstract ds-work-card--detail ds2-5-body-md">Extracellular voltage fluctuations (local field potentials, LFPs) reflecting neural mass action are ubiquitous across species and brain regions. Numerous studies have characterized the properties of LFP signals in the cortex to study sensory and motor computations as well as cognitive processes like attention, perception and memory. In addition, its extracranial counterpart – the electroencephalogram – is widely used in clinical applications. However, the link between LFP signals and the underlying activity of local populations of neurons remains largely elusive. Here, we review recent work elucidating the relationship between spiking activity of local neural populations and LFP signals. We focus on oscillations in the gamma-band (30–90 Hz) of the LFP in the primary visual cortex (V1) of the macaque that dominate during visual stimulation. Given that in area V1 much is known about the properties of single neurons and the cortical architecture, it provides an excellent opportunity to study the mechanisms underlying the generation of the LFP.</p><div class="ds-work-card--button-container"><button class="ds2-5-button js-swp-download-button" data-signup-modal="{"location":"continue-reading-button--work-card","attachmentId":51391107,"attachmentType":"pdf","workUrl":"https://www.academia.edu/482417/Feature_selectivity_of_the_gamma_band_of_the_local_field_potential_in_primate_primary_visual_cortex"}">See full PDF</button><button class="ds2-5-button ds2-5-button--secondary js-swp-download-button" data-signup-modal="{"location":"download-pdf-button--work-card","attachmentId":51391107,"attachmentType":"pdf","workUrl":"https://www.academia.edu/482417/Feature_selectivity_of_the_gamma_band_of_the_local_field_potential_in_primate_primary_visual_cortex"}"><span class="material-symbols-outlined" style="font-size: 20px" translate="no">download</span>Download PDF</button></div></div></div></div><div data-auto_select="false" data-client_id="331998490334-rsn3chp12mbkiqhl6e7lu2q0mlbu0f1b" data-doc_id="51391107" data-landing_url="https://www.academia.edu/482417/Feature_selectivity_of_the_gamma_band_of_the_local_field_potential_in_primate_primary_visual_cortex" data-login_uri="https://www.academia.edu/registrations/google_one_tap" data-moment_callback="onGoogleOneTapEvent" id="g_id_onload"></div><div class="ds-top-related-works--grid-container"><div class="ds-related-content--container ds-top-related-works--container"><h2 class="ds-related-content--heading">Related papers</h2><div class="ds-related-work--container js-wsj-grid-card" data-collection-position="0" data-entity-id="482419" data-sort-order="default"><a class="ds-related-work--title js-wsj-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/482419/Comparing_the_feature_selectivity_of_the_gamma_band_of_the_local_field_potential_and_the_underlying_spiking_activity_in_primate_visual_cortex">Comparing the feature selectivity of the gamma-band of the local field potential and the underlying spiking activity in primate visual cortex</a><div class="ds-related-work--metadata"><a class="js-wsj-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="272708" href="https://antwerp.academia.edu/GeorgiosKeliris">Georgios A Keliris</a></div><p class="ds-related-work--metadata ds2-5-body-xs">Frontiers in systems …, 2008</p><p class="ds-related-work--abstract ds2-5-body-sm">The local field potential (LFP), comprised of low-frequency extra-cellular voltage fluctuations, has been used extensively to study the mechanisms of brain function. In particular, oscillations in the gamma-band (30–90Hz) are ubiquitous in the cortex of many species during various cognitive processes. Surprisingly little is known about the underlying biophysical processes generating this signal. Here, we examine the relationship of the local field potential to the activity of localized populations of neurons by simultaneously recording spiking activity and LFP from the primary visual cortex (V1) of awake, behaving macaques. The spatial organization of orientation tuning and ocular dominance in this area provides an excellent opportunity to study this question, because orientation tuning is organized at a scale around one order of magnitude finer than the size of ocular dominance columns. While we find a surprisingly weak correlation between the preferred orientation of multi-unit activity and gamma-band LFP recorded on the same tetrode, there is a strong correlation between the ocular preferences of both signals. Given the spatial arrangement of orientation tuning and ocular dominance, this leads us to conclude that the gamma-band of the LFP seems to sample an area considerably larger than orientation columns. Rather, its spatial resolution lies at the scale of ocular dominance columns.</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"Comparing the feature selectivity of the gamma-band of the local field potential and the underlying spiking activity in primate visual cortex","attachmentId":51391092,"attachmentType":"pdf","work_url":"https://www.academia.edu/482419/Comparing_the_feature_selectivity_of_the_gamma_band_of_the_local_field_potential_and_the_underlying_spiking_activity_in_primate_visual_cortex","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-wsj-grid-card-view-pdf" href="https://www.academia.edu/482419/Comparing_the_feature_selectivity_of_the_gamma_band_of_the_local_field_potential_and_the_underlying_spiking_activity_in_primate_visual_cortex"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-wsj-grid-card" data-collection-position="1" data-entity-id="292754" data-sort-order="default"><a class="ds-related-work--title js-wsj-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/292754/Low_Frequency_Local_Field_Potentials_and_Spikes_In_Primary_Visual_Cortex_Convey_Independent_Visual_Information">Low-Frequency Local Field Potentials and Spikes In Primary Visual Cortex Convey Independent Visual Information</a><div class="ds-related-work--metadata"><a class="js-wsj-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="231442" href="https://ucl.academia.edu/ArthurGretton">Arthur Gretton</a></div><p class="ds-related-work--metadata ds2-5-body-xs">Journal of …, 2008</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"Low-Frequency Local Field Potentials and Spikes In Primary Visual Cortex Convey Independent Visual Information","attachmentId":51464668,"attachmentType":"pdf","work_url":"https://www.academia.edu/292754/Low_Frequency_Local_Field_Potentials_and_Spikes_In_Primary_Visual_Cortex_Convey_Independent_Visual_Information","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-wsj-grid-card-view-pdf" href="https://www.academia.edu/292754/Low_Frequency_Local_Field_Potentials_and_Spikes_In_Primary_Visual_Cortex_Convey_Independent_Visual_Information"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-wsj-grid-card" data-collection-position="2" data-entity-id="47545109" data-sort-order="default"><a class="ds-related-work--title js-wsj-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/47545109/Local_field_potentials_are_induced_by_visually_evoked_spiking_activity_in_macaque_cortical_area_MT">Local field potentials are induced by visually evoked spiking activity in macaque cortical area MT</a><div class="ds-related-work--metadata"><a class="js-wsj-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="124620298" href="https://independent.academia.edu/MohammadRezaDaliri">Mohammad Reza Daliri</a></div><p class="ds-related-work--metadata ds2-5-body-xs">Scientific reports, 2017</p><p class="ds-related-work--abstract ds2-5-body-sm">Local field potentials (LFP) have been the focus of many recent studies in systems neuroscience. However, the exact neural basis of these signals remains unclear. To address this question, we determined the relationship between LFP signals and another, much better understood, signature of neural activity: action potentials. Specifically, we focused on the relationship between the amplitude of stimulus-induced LFPs and the magnitude of spiking activity in visual cortex of non-human primates. Our trial-by-trial correlation analyses between these two components of extracellular signals in macaque visual cortex show that the spike rate is coupled to the LFP amplitude with a surprisingly long latency, typically 50 ms. Our analysis shows that the neural spike rate is a significant predictor of the LFP amplitude. This limits the functional interpretation of LFP signals beyond that based on spiking activities.</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"Local field potentials are induced by visually evoked spiking activity in macaque cortical area MT","attachmentId":66582715,"attachmentType":"pdf","work_url":"https://www.academia.edu/47545109/Local_field_potentials_are_induced_by_visually_evoked_spiking_activity_in_macaque_cortical_area_MT","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-wsj-grid-card-view-pdf" href="https://www.academia.edu/47545109/Local_field_potentials_are_induced_by_visually_evoked_spiking_activity_in_macaque_cortical_area_MT"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-wsj-grid-card" data-collection-position="3" data-entity-id="47889050" data-sort-order="default"><a class="ds-related-work--title js-wsj-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/47889050/Comparisons_of_the_Dynamics_of_Local_Field_Potential_and_Multiunit_Activity_Signals_in_Macaque_Visual_Cortex">Comparisons of the Dynamics of Local Field Potential and Multiunit Activity Signals in Macaque Visual Cortex</a><div class="ds-related-work--metadata"><a class="js-wsj-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="38191640" href="https://independent.academia.edu/RobertShapley">Robert Shapley</a></div><p class="ds-related-work--metadata ds2-5-body-xs">Journal of Neuroscience, 2010</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"Comparisons of the Dynamics of Local Field Potential and Multiunit Activity Signals in Macaque Visual Cortex","attachmentId":66783090,"attachmentType":"pdf","work_url":"https://www.academia.edu/47889050/Comparisons_of_the_Dynamics_of_Local_Field_Potential_and_Multiunit_Activity_Signals_in_Macaque_Visual_Cortex","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-wsj-grid-card-view-pdf" href="https://www.academia.edu/47889050/Comparisons_of_the_Dynamics_of_Local_Field_Potential_and_Multiunit_Activity_Signals_in_Macaque_Visual_Cortex"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-wsj-grid-card" data-collection-position="4" data-entity-id="23244348" data-sort-order="default"><a class="ds-related-work--title js-wsj-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/23244348/Orientation_tuning_of_the_local_field_potential_and_multi_unit_activity_in_the_primary_visual_cortex_of_the_macaque">Orientation tuning of the local field potential and multi-unit activity in the primary visual cortex of the macaque</a><div class="ds-related-work--metadata"><a class="js-wsj-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="272708" href="https://antwerp.academia.edu/GeorgiosKeliris">Georgios A Keliris</a></div><p class="ds-related-work--abstract ds2-5-body-sm">Oscillations in the local field potential (LFP) are abundant across species and brain regions. The possible relationship of these low-frequency extracelluar voltage fluctuations with the activity of the underlying local population of neurons remains largely elusive. To study this relationship, we used an array of chronically implanted tetrodes spanning a distance of 700 µm and simultaneously recorded action potentials from multiple well-isolated single units, multi unit activity (MUA) and LFP from area V1 of the awake, behaving macaque. Moving and static gratings of different orientations were used for visual stimulation. In agreement with previous studies we find that the increase of LFP gamma-band power is a function of the orientation of the stimulus. However, the power of the gamma-band contains much less information about the orientation of the stimulus than the MUA and SUA recorded at the same site (Figure 1A). The average discriminability d&#39; between preferred and orthogon...</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"Orientation tuning of the local field potential and multi-unit activity in the primary visual cortex of the macaque","attachmentId":43726805,"attachmentType":"pdf","work_url":"https://www.academia.edu/23244348/Orientation_tuning_of_the_local_field_potential_and_multi_unit_activity_in_the_primary_visual_cortex_of_the_macaque","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-wsj-grid-card-view-pdf" href="https://www.academia.edu/23244348/Orientation_tuning_of_the_local_field_potential_and_multi_unit_activity_in_the_primary_visual_cortex_of_the_macaque"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-wsj-grid-card" data-collection-position="5" data-entity-id="15030779" data-sort-order="default"><a class="ds-related-work--title js-wsj-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/15030779/Local_field_potentials_indicate_network_state_and_account_for_neuronal_response_variability">Local field potentials indicate network state and account for neuronal response variability</a><div class="ds-related-work--metadata"><a class="js-wsj-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="34041019" href="https://independent.academia.edu/matthewsmith93">matthew smith</a></div><p class="ds-related-work--metadata ds2-5-body-xs">Journal of Computational Neuroscience, 2010</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"Local field potentials indicate network state and account for neuronal response variability","attachmentId":43644812,"attachmentType":"pdf","work_url":"https://www.academia.edu/15030779/Local_field_potentials_indicate_network_state_and_account_for_neuronal_response_variability","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-wsj-grid-card-view-pdf" href="https://www.academia.edu/15030779/Local_field_potentials_indicate_network_state_and_account_for_neuronal_response_variability"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-wsj-grid-card" data-collection-position="6" data-entity-id="47888986" data-sort-order="default"><a class="ds-related-work--title js-wsj-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/47888986/LFP_spectral_peaks_in_V1_cortex_network_resonance_and_cortico_cortical_feedback">LFP spectral peaks in V1 cortex: network resonance and cortico-cortical feedback</a><div class="ds-related-work--metadata"><a class="js-wsj-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="38191640" href="https://independent.academia.edu/RobertShapley">Robert Shapley</a></div><p class="ds-related-work--metadata ds2-5-body-xs">Journal of Computational Neuroscience, 2010</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"LFP spectral peaks in V1 cortex: network resonance and cortico-cortical feedback","attachmentId":66783079,"attachmentType":"pdf","work_url":"https://www.academia.edu/47888986/LFP_spectral_peaks_in_V1_cortex_network_resonance_and_cortico_cortical_feedback","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-wsj-grid-card-view-pdf" href="https://www.academia.edu/47888986/LFP_spectral_peaks_in_V1_cortex_network_resonance_and_cortico_cortical_feedback"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-wsj-grid-card" data-collection-position="7" data-entity-id="48268628" data-sort-order="default"><a class="ds-related-work--title js-wsj-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/48268628/Stimulus_Selectivity_and_Spatial_Coherence_of_Gamma_Components_of_the_Local_Field_Potential">Stimulus Selectivity and Spatial Coherence of Gamma Components of the Local Field Potential</a><div class="ds-related-work--metadata"><a class="js-wsj-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="146652062" href="https://independent.academia.edu/XiaoxuanJia">Xiaoxuan Jia</a></div><p class="ds-related-work--metadata ds2-5-body-xs">Journal of Neuroscience, 2011</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"Stimulus Selectivity and Spatial Coherence of Gamma Components of the Local Field Potential","attachmentId":66970441,"attachmentType":"pdf","work_url":"https://www.academia.edu/48268628/Stimulus_Selectivity_and_Spatial_Coherence_of_Gamma_Components_of_the_Local_Field_Potential","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-wsj-grid-card-view-pdf" href="https://www.academia.edu/48268628/Stimulus_Selectivity_and_Spatial_Coherence_of_Gamma_Components_of_the_Local_Field_Potential"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-wsj-grid-card" data-collection-position="8" data-entity-id="20431918" data-sort-order="default"><a class="ds-related-work--title js-wsj-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/20431918/Response_properties_of_local_field_potentials_and_multiunit_activity_in_the_mouse_visual_cortex">Response properties of local field potentials and multiunit activity in the mouse visual cortex</a><div class="ds-related-work--metadata"><a class="js-wsj-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="16091314" href="https://mh-hannover.academia.edu/R%C3%BCdigerLand">Rüdiger Land</a><span>, </span><a class="js-wsj-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="43094782" href="https://mh-hannover.academia.edu/AndrejKral">Andrej Kral</a></div><p class="ds-related-work--abstract ds2-5-body-sm">Extracellular local field potentials (LFPs) and multiunit activity (MUA) reflect the spatially integrated activity of multiple neurons in a given cortical structure. In the cat and primate visual cortices, these signals exhibit selectivity for visual stimulus features, such as orientation, direction of motion or spatial frequency. In the mouse visual cortex, a model which has been increasingly used in visual neuroscience, the visual stimulus selectivity of population signals has not been examined in detail. We recorded LFPs and MUA using multielectrode arrays and two derived measures, the high-pass filtered continuous MUA and the bipolar first spatial derivative of the LFP, in the visual cortex of isoflurane-anesthetized C57Bl/6 mice. We analyzed the onset latency and characterized the receptive fields in addition to the direction, orientation, and spatial and temporal frequency preferences of these signals. Population signals exhibited onset latencies as short as ∼30 ms and possessed receptive fields as large as ∼38° with MUA receptive fields smaller than those of LFPs. All four population signals exhibited similar spatial frequency preferences (∼0.1 cycles per degree) and temporal frequency preferences (∼1 cycle per second). However, for all population signals, spatial and frequency tunings were broad and orientation and direction of motion preferences were absent. The characterization of the visual stimulus selectivity of LFPs and MUA in the mouse visual cortex should provide information regarding their usability in characterizing stimulus properties and disclose possible limitations.</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"Response properties of local field potentials and multiunit activity in the mouse visual cortex","attachmentId":41367686,"attachmentType":"pdf","work_url":"https://www.academia.edu/20431918/Response_properties_of_local_field_potentials_and_multiunit_activity_in_the_mouse_visual_cortex","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-wsj-grid-card-view-pdf" href="https://www.academia.edu/20431918/Response_properties_of_local_field_potentials_and_multiunit_activity_in_the_mouse_visual_cortex"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-wsj-grid-card" data-collection-position="9" data-entity-id="24445348" data-sort-order="default"><a class="ds-related-work--title js-wsj-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/24445348/Local_Origin_of_Field_Potentials_in_Visual_Cortex">Local Origin of Field Potentials in Visual Cortex</a><div class="ds-related-work--metadata"><a class="js-wsj-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="47123872" href="https://independent.academia.edu/DarioRingach">Dario Ringach</a></div><p class="ds-related-work--metadata ds2-5-body-xs">Neuron, 2009</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"Local Origin of Field Potentials in Visual Cortex","attachmentId":44776475,"attachmentType":"pdf","work_url":"https://www.academia.edu/24445348/Local_Origin_of_Field_Potentials_in_Visual_Cortex","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-wsj-grid-card-view-pdf" href="https://www.academia.edu/24445348/Local_Origin_of_Field_Potentials_in_Visual_Cortex"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div></div></div><div class="ds-sticky-ctas--wrapper js-loswp-sticky-ctas hidden"><div class="ds-sticky-ctas--grid-container"><div class="ds-sticky-ctas--container"><button class="ds2-5-button js-swp-download-button" data-signup-modal="{"location":"continue-reading-button--sticky-ctas","attachmentId":51391107,"attachmentType":"pdf","workUrl":null}">See full PDF</button><button class="ds2-5-button ds2-5-button--secondary js-swp-download-button" data-signup-modal="{"location":"download-pdf-button--sticky-ctas","attachmentId":51391107,"attachmentType":"pdf","workUrl":null}"><span class="material-symbols-outlined" style="font-size: 20px" translate="no">download</span>Download PDF</button></div></div></div><div class="ds-below-fold--grid-container"><div class="ds-work--container js-loswp-embedded-document"><div class="attachment_preview" data-attachment="Attachment_51391107" style="display: none"><div class="js-scribd-document-container"><div class="scribd--document-loading js-scribd-document-loader" style="display: block;"><img alt="Loading..." src="//a.academia-assets.com/images/loaders/paper-load.gif" /><p>Loading Preview</p></div></div><div style="text-align: center;"><div class="scribd--no-preview-alert js-preview-unavailable"><p>Sorry, preview is currently unavailable. 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