{"id":2612,"date":"2022-04-08T19:15:38","date_gmt":"2022-04-08T09:15:38","guid":{"rendered":"https:\/\/www.cognav.net\/?p=2612"},"modified":"2022-04-08T19:20:59","modified_gmt":"2022-04-08T09:20:59","slug":"how-linear-angular-speed-derivative-in-time-of-position-direction-may-allow-the-updating-of-spatial-representations","status":"publish","type":"post","link":"https:\/\/braininspirednavigation.com\/?p=2612","title":{"rendered":"How linear\/angular speed \u2013 derivative in time of position\/direction \u2013 may allow the updating of spatial representations?"},"content":{"rendered":"<p style=\"text-align: justify;\">Spalla, D., Treves, A. &amp; Boccara, C.N. <a href=\"https:\/\/www.nature.com\/articles\/s41467-022-29583-z\"><strong>Angular and linear speed cells in the parahippocampal circuits<\/strong><\/a>. Nat Commun 13, 1907 (2022). https:\/\/doi.org\/10.1038\/s41467-022-29583-z<\/p>\n<p style=\"text-align: justify;\">Abstract<br \/>\n&#8220;<strong><span style=\"color: #ff0000;\">An essential role of the hippocampal region is to integrate information to compute and update representations.<\/span><\/strong> How this transpires is highly debated. Many theories hinge on the integration of self-motion signals and the existence of continuous attractor networks (CAN). CAN models hypothesise that neurons coding for navigational correlates \u2013 such as position and direction \u2013 receive inputs from cells conjunctively coding for position, direction, and self-motion. <strong><span style=\"color: #ff0000;\">As yet, very little data exist on such conjunctive coding in the hippocampal region.<\/span><\/strong> Here, <strong><span style=\"color: #ff0000;\">we report neurons coding for angular and linear velocity, uniformly distributed across the medial entorhinal cortex (MEC), the presubiculum and the parasubiculum, except for MEC layer II.<\/span> <\/strong>Self-motion neurons often conjunctively encoded position and\/or direction, yet lacked a structured organisation. <strong><span style=\"color: #ff0000;\">These results offer insights as to how linear\/angular speed \u2013 derivative in time of position\/direction \u2013 may allow the updating of spatial representations, possibly uncovering a generalised algorithm to update any representation<\/span><\/strong>.&#8221;<\/p>\n<p style=\"text-align: justify;\">Spalla, D., Treves, A. &amp; Boccara, C.N. <a href=\"https:\/\/www.nature.com\/articles\/s41467-022-29583-z\"><strong>Angular and linear speed cells in the parahippocampal circuits<\/strong><\/a>. Nat Commun 13, 1907 (2022). https:\/\/doi.org\/10.1038\/s41467-022-29583-z<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Spalla, D., Treves, A. &amp; Boccara, C.N. Angular and linear speed cells in the parahippocampal circuits. Nat Commun 13, 1907 (2022). https:\/\/doi.org\/10.1038\/s41467-022-29583-z Abstract &#8220;An essential role of the hippocampal region is to integrate information to compute and update representations. How this transpires is highly debated. Many theories hinge on the integration of self-motion signals and [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[987,96],"tags":[1001],"_links":{"self":[{"href":"https:\/\/braininspirednavigation.com\/index.php?rest_route=\/wp\/v2\/posts\/2612"}],"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=2612"}],"version-history":[{"count":1,"href":"https:\/\/braininspirednavigation.com\/index.php?rest_route=\/wp\/v2\/posts\/2612\/revisions"}],"predecessor-version":[{"id":2613,"href":"https:\/\/braininspirednavigation.com\/index.php?rest_route=\/wp\/v2\/posts\/2612\/revisions\/2613"}],"wp:attachment":[{"href":"https:\/\/braininspirednavigation.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2612"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/braininspirednavigation.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2612"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/braininspirednavigation.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2612"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}