{"id":2790,"date":"2023-02-03T11:32:56","date_gmt":"2023-02-03T01:32:56","guid":{"rendered":"https:\/\/www.cognav.net\/?p=2790"},"modified":"2023-02-03T11:32:56","modified_gmt":"2023-02-03T01:32:56","slug":"how-the-brain-maintain-and-update-the-uncertainty-about-ones-location-to-navigate-efficiently","status":"publish","type":"post","link":"https:\/\/braininspirednavigation.com\/?p=2790","title":{"rendered":"How the brain maintain and update the uncertainty about one\u2019s location to navigate efficiently?"},"content":{"rendered":"<p style=\"text-align: justify;\">Yul HR Kang, Daniel M Wolpert, M\u00e1t\u00e9 Lengyel. <a href=\"https:\/\/www.biorxiv.org\/content\/10.1101\/2023.01.30.526278v1\"><strong>Spatial uncertainty and environmental geometry in navigation<\/strong><\/a>.\u00a0bioRxiv 2023.01.30.526278; doi: https:\/\/doi.org\/10.1101\/2023.01.30.526278<\/p>\n<p style=\"text-align: justify;\">Abstract<br \/>\n&#8220;<span style=\"color: #ff0000;\"><strong>Variations in the geometry of the environment, such as the shape and size of an enclosure, have profound effects on navigational behavior and its neural underpinning<\/strong><\/span>. Here, <strong><span style=\"color: #ff0000;\">we show that these effects arise as a consequence of a single, unifying principle: to navigate efficiently, the brain must maintain and update the uncertainty about one&#8217;s location<\/span><\/strong>. We developed <strong><span style=\"color: #ff0000;\">an image-computable Bayesian ideal observer model of navigation, continually combining noisy visual and self-motion inputs, and a neural encoding model optimized to represent the location uncertainty computed by the ideal observer<\/span><\/strong>. Through mathematical analysis and numerical simulations, <strong><span style=\"color: #ff0000;\">we show that the ideal observer accounts for a diverse range of sometimes paradoxical distortions of human homing behavior in anisotropic and deformed environments, including &#8216;boundary tethering&#8217;, and its neural encoding accounts for distortions of rodent grid cell responses under identical environmental manipulations<\/span><\/strong>. Our results demonstrate that <strong><span style=\"color: #ff0000;\">spatial uncertainty plays a key role in navigation<\/span><\/strong>.&#8221;<\/p>\n<p style=\"text-align: justify;\">Yul HR Kang, Daniel M Wolpert, M\u00e1t\u00e9 Lengyel. <a href=\"https:\/\/www.biorxiv.org\/content\/10.1101\/2023.01.30.526278v1\"><strong>Spatial uncertainty and environmental geometry in navigation<\/strong><\/a>.\u00a0bioRxiv 2023.01.30.526278; doi: https:\/\/doi.org\/10.1101\/2023.01.30.526278<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Yul HR Kang, Daniel M Wolpert, M\u00e1t\u00e9 Lengyel. Spatial uncertainty and environmental geometry in navigation.\u00a0bioRxiv 2023.01.30.526278; doi: https:\/\/doi.org\/10.1101\/2023.01.30.526278 Abstract &#8220;Variations in the geometry of the environment, such as the shape and size of an enclosure, have profound effects on navigational behavior and its neural underpinning. Here, we show that these effects arise as a consequence [&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":[506,1179],"_links":{"self":[{"href":"https:\/\/braininspirednavigation.com\/index.php?rest_route=\/wp\/v2\/posts\/2790"}],"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=2790"}],"version-history":[{"count":1,"href":"https:\/\/braininspirednavigation.com\/index.php?rest_route=\/wp\/v2\/posts\/2790\/revisions"}],"predecessor-version":[{"id":2791,"href":"https:\/\/braininspirednavigation.com\/index.php?rest_route=\/wp\/v2\/posts\/2790\/revisions\/2791"}],"wp:attachment":[{"href":"https:\/\/braininspirednavigation.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2790"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/braininspirednavigation.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2790"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/braininspirednavigation.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2790"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}