{"id":2197,"date":"2020-01-19T12:22:00","date_gmt":"2020-01-19T02:22:00","guid":{"rendered":"https:\/\/www.cognav.net\/?p=2197"},"modified":"2020-01-19T12:22:00","modified_gmt":"2020-01-19T02:22:00","slug":"how-the-3d-head-orienting-movements-are-encoded-in-primary-visual-cortex","status":"publish","type":"post","link":"https:\/\/braininspirednavigation.com\/?p=2197","title":{"rendered":"How the 3D Head Orienting Movements are encoded in Primary Visual Cortex?"},"content":{"rendered":"<p style=\"text-align: justify;\">Grigori Guitchounts, Javier Alejandro Masis, Steffen B.E. Wolff, David Cox. <a href=\"https:\/\/www.biorxiv.org\/content\/10.1101\/2020.01.16.909473v1\"><strong>Encoding of 3D Head Orienting Movements in Primary Visual Cortex<\/strong><\/a>. bioRxiv 2020.01.16.909473; doi: https:\/\/doi.org\/10.1101\/2020.01.16.909473<\/p>\n<p style=\"text-align: justify;\">Abstract<br \/>\n&#8220;<span style=\"color: #ff0000;\"><strong>Animals actively sample from the sensory world by generating complex patterns of movement that evolve in three dimensions<\/strong><\/span>. At least some of these movements have been shown to influence neural codes in sensory areas. For example, <strong><span style=\"color: #ff0000;\">in primary visual cortex (V1)<\/span><\/strong>, <strong><span style=\"color: #ff0000;\">locomotion-related neural activity influences sensory gain, encodes running speed, and predicts the direction of visual flow<\/span><\/strong>. As most experiments exploring movement-related modulation of V1 have been performed in head-fixed animals, <strong><span style=\"color: #ff0000;\">it remains unclear whether or how the naturalistic movements used to interact with sensory stimuli&#8211;like head orienting&#8211;influence visual processing<\/span><\/strong>. Here we show that <strong><span style=\"color: #ff0000;\">3D head orienting movements modulate V1 neuronal activity in a direction-specific manner that also depends on the presence or absence of light<\/span><\/strong>. We identify two largely independent populations of movement-direction-tuned neurons that support this modulation, one of which is direction-tuned in the dark and the other in the light. Finally, we demonstrate that V1 gains access to a motor efference copy related to orientation from secondary motor cortex, which has been shown to control head orienting movements. <strong><span style=\"color: #ff0000;\">These results suggest a mechanism through which sensory signals generated by purposeful movement can be distinguished from those arising in the outside world, and reveal a pervasive role of 3D movement in shaping sensory cortical dynamics<\/span><\/strong>.&#8221;<\/p>\n<p style=\"text-align: justify;\">Grigori Guitchounts, Javier Alejandro Masis, Steffen B.E. Wolff, David Cox. <a href=\"https:\/\/www.biorxiv.org\/content\/10.1101\/2020.01.16.909473v1\"><strong>Encoding of 3D Head Orienting Movements in Primary Visual Cortex<\/strong><\/a>. bioRxiv 2020.01.16.909473; doi: https:\/\/doi.org\/10.1101\/2020.01.16.909473<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Grigori Guitchounts, Javier Alejandro Masis, Steffen B.E. Wolff, David Cox. Encoding of 3D Head Orienting Movements in Primary Visual Cortex. bioRxiv 2020.01.16.909473; doi: https:\/\/doi.org\/10.1101\/2020.01.16.909473 Abstract &#8220;Animals actively sample from the sensory world by generating complex patterns of movement that evolve in three dimensions. At least some of these movements have been shown to influence neural [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[390,479,389,96,419],"tags":[716,718,721,717,680,630,719,720],"_links":{"self":[{"href":"https:\/\/braininspirednavigation.com\/index.php?rest_route=\/wp\/v2\/posts\/2197"}],"collection":[{"href":"https:\/\/braininspirednavigation.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/braininspirednavigation.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/braininspirednavigation.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/braininspirednavigation.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2197"}],"version-history":[{"count":1,"href":"https:\/\/braininspirednavigation.com\/index.php?rest_route=\/wp\/v2\/posts\/2197\/revisions"}],"predecessor-version":[{"id":2198,"href":"https:\/\/braininspirednavigation.com\/index.php?rest_route=\/wp\/v2\/posts\/2197\/revisions\/2198"}],"wp:attachment":[{"href":"https:\/\/braininspirednavigation.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2197"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/braininspirednavigation.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2197"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/braininspirednavigation.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2197"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}