{"id":2058,"date":"2019-11-06T17:00:34","date_gmt":"2019-11-06T07:00:34","guid":{"rendered":"https:\/\/www.cognav.net\/?p=2058"},"modified":"2019-11-06T17:00:34","modified_gmt":"2019-11-06T07:00:34","slug":"how-the-brain-represent-allocentric-map-based-vectors-to-boundaries-objects-and-goals","status":"publish","type":"post","link":"https:\/\/braininspirednavigation.com\/?p=2058","title":{"rendered":"How the brain represent allocentric (map-based) vectors to boundaries, objects, and goals?"},"content":{"rendered":"<p style=\"text-align: justify;\">Steven Poulter, Sang Ah Lee, James Dachtler, Thomas J. Wills, Colin Lever. <a href=\"https:\/\/www.biorxiv.org\/content\/10.1101\/805242v1\"><strong>Vector Trace cells in the Subiculum of the Hippocampal formation<\/strong><\/a>. bioRxiv 805242; doi: https:\/\/doi.org\/10.1101\/805242<\/p>\n<p style=\"text-align: justify;\">Abstract<br \/>\n&#8220;<span style=\"color: #ff0000;\"><strong>Successfully navigating in physical or semantic space requires a neural representation of allocentric (map-based) vectors to boundaries, objects, and goals<\/strong><\/span>. Cognitive processes such as path-planning and imagination entail recall of vector representations, but <strong><span style=\"color: #ff0000;\">evidence of neuron-level memory for allocentric vectors has been lacking<\/span><\/strong>. Here <strong><span style=\"color: #ff0000;\">we describe a novel neuron type (Vector Trace cell, VTC) whose firing generates a new vector field when a cue is encountered, and also a \u2018trace\u2019 version of that field for hours after cue removal.<\/span> <\/strong>VTCs are concentrated in subiculum distal to CA1. Compared to non-trace cells, VTCs fire at further distances from cues, and exhibit earlier-going shifts in preferred theta phase in response to newly introduced cues, demonstrating a theta-linked neural substrate for memory encoding. <strong><span style=\"color: #ff0000;\">VTCs suggest a vector-based model of computing spatial relationships between an agent and multiple spatial objects, or between different objects, freed from the constraints of direct perception of those objects.<\/span><\/strong>&#8220;<\/p>\n<p style=\"text-align: justify;\">Steven Poulter, Sang Ah Lee, James Dachtler, Thomas J. Wills, Colin Lever. <a href=\"https:\/\/www.biorxiv.org\/content\/10.1101\/805242v1\"><strong>Vector Trace cells in the Subiculum of the Hippocampal formation<\/strong><\/a>. bioRxiv 805242; doi: https:\/\/doi.org\/10.1101\/805242<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Steven Poulter, Sang Ah Lee, James Dachtler, Thomas J. Wills, Colin Lever. Vector Trace cells in the Subiculum of the Hippocampal formation. bioRxiv 805242; doi: https:\/\/doi.org\/10.1101\/805242 Abstract &#8220;Successfully navigating in physical or semantic space requires a neural representation of allocentric (map-based) vectors to boundaries, objects, and goals. Cognitive processes such as path-planning and imagination entail [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[96,346,419,519],"tags":[564,349,563,565],"_links":{"self":[{"href":"https:\/\/braininspirednavigation.com\/index.php?rest_route=\/wp\/v2\/posts\/2058"}],"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=2058"}],"version-history":[{"count":1,"href":"https:\/\/braininspirednavigation.com\/index.php?rest_route=\/wp\/v2\/posts\/2058\/revisions"}],"predecessor-version":[{"id":2059,"href":"https:\/\/braininspirednavigation.com\/index.php?rest_route=\/wp\/v2\/posts\/2058\/revisions\/2059"}],"wp:attachment":[{"href":"https:\/\/braininspirednavigation.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2058"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/braininspirednavigation.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2058"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/braininspirednavigation.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2058"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}