{"id":2496,"date":"2021-11-24T10:43:17","date_gmt":"2021-11-24T00:43:17","guid":{"rendered":"https:\/\/www.cognav.net\/?p=2496"},"modified":"2021-11-24T10:43:17","modified_gmt":"2021-11-24T00:43:17","slug":"how-does-the-brain-encode-the-angular-head-velocity-with-multisensory-integration","status":"publish","type":"post","link":"https:\/\/braininspirednavigation.com\/?p=2496","title":{"rendered":"How does the brain encode the angular head velocity with multisensory integration?"},"content":{"rendered":"<p style=\"text-align: justify;\">Sepiedeh Keshavarzi, Edward F. Bracey, Richard A. Faville, Dario Campagner, Adam L. Tyson, Stephen C. Lenzi, Tiago Branco, Troy W. Margrie. <a href=\"https:\/\/www.cell.com\/neuron\/fulltext\/S0896-6273(21)00846-1\"><strong>Multisensory coding of angular head velocity in the retrosplenial cortex<\/strong><\/a>. Neuron, 2021, https:\/\/doi.org\/10.1016\/j.neuron.2021.10.031.<\/p>\n<p style=\"text-align: justify;\">Summary<br \/>\n&#8220;<strong><span style=\"color: #ff0000;\">To successfully navigate the environment, animals depend on their ability to continuously track their heading direction and speed<\/span><\/strong>. Neurons that encode angular head velocity (AHV) are fundamental to this process, yet the contribution of various motion signals to AHV coding in the cortex remains elusive. By performing chronic single-unit recordings in the retrosplenial cortex (RSP) of the mouse and tracking the activity of individual AHV cells between freely moving and head-restrained conditions, <strong><span style=\"color: #ff0000;\">we find that vestibular inputs dominate AHV signaling<\/span><\/strong>. Moreover, <strong><span style=\"color: #ff0000;\">the addition of visual inputs onto these neurons increases the gain and signal-to-noise ratio of their tuning during active exploration<\/span><\/strong>. Psychophysical experiments and neural decoding further reveal that <strong><span style=\"color: #ff0000;\">vestibular-visual integration increases the perceptual accuracy of angular self-motion and the fidelity of its representation by RSP ensembles<\/span><\/strong>. We conclude that while <strong><span style=\"color: #ff0000;\">cortical AHV coding requires vestibular input, where possible, it also uses vision to optimize heading estimation during navigation<\/span><\/strong>.&#8221;<\/p>\n<p style=\"text-align: justify;\">Sepiedeh Keshavarzi, Edward F. Bracey, Richard A. Faville, Dario Campagner, Adam L. Tyson, Stephen C. Lenzi, Tiago Branco, Troy W. Margrie. <a href=\"https:\/\/www.cell.com\/neuron\/fulltext\/S0896-6273(21)00846-1\"><strong>Multisensory coding of angular head velocity in the retrosplenial cortex<\/strong><\/a>. Neuron, 2021, https:\/\/doi.org\/10.1016\/j.neuron.2021.10.031.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Sepiedeh Keshavarzi, Edward F. Bracey, Richard A. Faville, Dario Campagner, Adam L. Tyson, Stephen C. Lenzi, Tiago Branco, Troy W. Margrie. Multisensory coding of angular head velocity in the retrosplenial cortex. Neuron, 2021, https:\/\/doi.org\/10.1016\/j.neuron.2021.10.031. Summary &#8220;To successfully navigate the environment, animals depend on their ability to continuously track their heading direction and speed. Neurons that [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[96,346],"tags":[691,934,668],"_links":{"self":[{"href":"https:\/\/braininspirednavigation.com\/index.php?rest_route=\/wp\/v2\/posts\/2496"}],"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=2496"}],"version-history":[{"count":1,"href":"https:\/\/braininspirednavigation.com\/index.php?rest_route=\/wp\/v2\/posts\/2496\/revisions"}],"predecessor-version":[{"id":2497,"href":"https:\/\/braininspirednavigation.com\/index.php?rest_route=\/wp\/v2\/posts\/2496\/revisions\/2497"}],"wp:attachment":[{"href":"https:\/\/braininspirednavigation.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2496"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/braininspirednavigation.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2496"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/braininspirednavigation.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2496"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}