{"id":2822,"date":"2023-03-10T10:10:48","date_gmt":"2023-03-10T00:10:48","guid":{"rendered":"https:\/\/www.cognav.net\/?p=2822"},"modified":"2023-03-10T10:10:48","modified_gmt":"2023-03-10T00:10:48","slug":"how-human-visual-area-v6-transforms-spatially-relevant-sensory-information-into-an-egocentric-representation-for-navigation%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/braininspirednavigation.com\/?p=2822","title":{"rendered":"How human visual area V6 transforms spatially relevant sensory information into an egocentric representation for navigation\uff1f"},"content":{"rendered":"<p style=\"text-align: justify;\">Aggius-Vella E, Chebat DR, Maidenbaum S, Amedi A. <a href=\"https:\/\/doi.org\/10.1016\/j.cub.2023.02.025\"><strong>Activation of human visual area V6 during egocentric navigation with and without visual experience<\/strong><\/a>. Current Biology. 2023 Mar 1.<\/p>\n<p style=\"text-align: justify;\">Summary<br \/>\n&#8220;<strong><span style=\"color: #ff0000;\">V6 is a retinotopic area located in the dorsal visual stream that integrates eye movements with retinal and visuo-motor signals<\/span><\/strong>. Despite the known role of V6 in visual motion, <strong><span style=\"color: #ff0000;\">it is unknown whether it is involved in navigation and how sensory experiences shape its functional properties<\/span><\/strong>. <strong><span style=\"color: #ff0000;\">We explored the involvement of V6 in egocentric navigation in sighted and in congenitally blind (CB) participants<\/span><\/strong> navigating via an in-house distance-to-sound sensory substitution device (SSD), the EyeCane. We performed two fMRI experiments on two independent datasets. In the first experiment, CB and sighted participants navigated the same mazes. The sighted performed the mazes via vision, while the CB performed them via audition. The CB performed the mazes before and after a training session, using the EyeCane SSD. In the second experiment, a group of sighted participants performed a motor topography task. <strong><span style=\"color: #ff0000;\">Our results show that right V6 (rhV6) is selectively involved in egocentric navigation independently of the sensory modality used<\/span><\/strong>. Indeed, after training, rhV6 of CB is selectively recruited for auditory navigation, similarly to rhV6 in the sighted. Moreover, <strong><span style=\"color: #ff0000;\">we found activation for body movement in area V6, which can putatively contribute to its involvement in egocentric navigation<\/span><\/strong>. Taken together, <strong><span style=\"color: #ff0000;\">our findings suggest that area rhV6 is a unique hub that transforms spatially relevant sensory information into an egocentric representation for navigation<\/span><\/strong>. While vision is clearly the dominant modality,<strong><span style=\"color: #ff0000;\"> rhV6 is in fact a supramodal area that can develop its selectivity for navigation in the absence of visual experience<\/span><\/strong>.&#8221;<\/p>\n<p style=\"text-align: justify;\">Aggius-Vella E, Chebat DR, Maidenbaum S, Amedi A. <a href=\"https:\/\/doi.org\/10.1016\/j.cub.2023.02.025\"><strong>Activation of human visual area V6 during egocentric navigation with and without visual experience<\/strong><\/a>. Current Biology. 2023 Mar 1.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Aggius-Vella E, Chebat DR, Maidenbaum S, Amedi A. Activation of human visual area V6 during egocentric navigation with and without visual experience. Current Biology. 2023 Mar 1. Summary &#8220;V6 is a retinotopic area located in the dorsal visual stream that integrates eye movements with retinal and visuo-motor signals. Despite the known role of V6 in [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[96,346,850],"tags":[1212,1211,817],"_links":{"self":[{"href":"https:\/\/braininspirednavigation.com\/index.php?rest_route=\/wp\/v2\/posts\/2822"}],"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=2822"}],"version-history":[{"count":1,"href":"https:\/\/braininspirednavigation.com\/index.php?rest_route=\/wp\/v2\/posts\/2822\/revisions"}],"predecessor-version":[{"id":2823,"href":"https:\/\/braininspirednavigation.com\/index.php?rest_route=\/wp\/v2\/posts\/2822\/revisions\/2823"}],"wp:attachment":[{"href":"https:\/\/braininspirednavigation.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2822"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/braininspirednavigation.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2822"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/braininspirednavigation.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2822"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}