{"id":1924,"date":"2019-06-14T14:47:23","date_gmt":"2019-06-14T04:47:23","guid":{"rendered":"https:\/\/www.cognav.net\/?p=1924"},"modified":"2019-06-14T14:47:23","modified_gmt":"2019-06-14T04:47:23","slug":"why-do-the-typical-boundaries-in-natural-scenes-affect-spatial-cognition-differently-from-the-non-boundaries-in-natural-scenes","status":"publish","type":"post","link":"https:\/\/braininspirednavigation.com\/?p=1924","title":{"rendered":"Why do the typical boundaries in natural scenes affect spatial cognition differently from the non-boundaries in natural scenes?"},"content":{"rendered":"<p style=\"text-align: justify;\">James Negen, Angela Sandri, Sang Ah Lee, Marko Nardini. <strong><a href=\"https:\/\/www.biorxiv.org\/content\/10.1101\/391037v2\">Boundaries in Spatial Cognition: Looking like a Boundary is More Important than Being a Boundary.<\/a><\/strong> June 12, 2019. doi: https:\/\/doi.org\/10.1101\/391037<\/p>\n<p style=\"text-align: justify;\"><strong>Abstract<\/strong><\/p>\n<p style=\"text-align: justify;\"><span style=\"color: #ff0000;\"><strong>Large walls and other typical boundaries strongly influence neural activity related to navigation and the representations of spatial layouts.<\/strong> <\/span>They are also major aids to reliable navigation behavior in young children and non-human animals. <span style=\"color: #ff0000;\"><strong>Is this because they are physical boundaries (barriers to movement), or because they present certain visual features, such as visually extended 3D surfaces?<\/strong> <\/span>Here, these two factors were dissociated by using immersive virtual reality and real boundaries. Eighty adults recalled target locations in one of four environments: plywood, where a virtual wall coincided with a large piece of real plywood; pass through, where the virtual wall coincided with empty space and participants could pass through it; pass over, where the virtual wall was projected downward to be visible underneath a transparent floor; and cones, where the walls were replaced with traffic cones. One condition had features that were boundaries and looked like boundaries (plywood); two had features that were not boundaries but looked like boundaries (pass over\/through); and one had features that were not boundaries and did not look like boundaries (cones). The precision and bias of responses changed only as a function of looking like a boundary. <strong><span style=\"color: #ff0000;\">This suggests that variations in spatial coding are more closely linked to the visual properties of environmental layouts than to whether they contain physical boundaries (barriers to movement).<\/span><\/strong><\/p>\n<p style=\"text-align: justify;\"><strong>Conclusion<\/strong><\/p>\n<p style=\"text-align: justify;\"><span style=\"color: #ff0000;\"><strong> Experiencing that an item is a (physical) boundary, independent of how much it looks like a typical boundary, does not directly affect adult participants\u2019 coding of the locations around it.<\/strong><\/span> In contrast, <span style=\"color: #ff0000;\"><strong>non-boundaries that vary in how they look can lead to substantial differences in the pattern of responses.<\/strong><\/span> This is the clearest evidence to date that <strong><span style=\"color: #ff0000;\">the typical boundaries in natural scenes have their particular effects on spatial cognition because of visual aspects such as horizontal extent, the presence of a visually extended 3D surface, or large-scale structure \u2013 not because they limit navigation.\u00a0<\/span><\/strong><\/p>\n<p>James Negen, Angela Sandri, Sang Ah Lee, Marko Nardini. <strong><a href=\"https:\/\/www.biorxiv.org\/content\/10.1101\/391037v2\">Boundaries in Spatial Cognition: Looking like a Boundary is More Important than Being a Boundary.<\/a><\/strong> June 12, 2019. doi: https:\/\/doi.org\/10.1101\/391037<\/p>\n","protected":false},"excerpt":{"rendered":"<p>James Negen, Angela Sandri, Sang Ah Lee, Marko Nardini. Boundaries in Spatial Cognition: Looking like a Boundary is More Important than Being a Boundary. June 12, 2019. doi: https:\/\/doi.org\/10.1101\/391037 Abstract Large walls and other typical boundaries strongly influence neural activity related to navigation and the representations of spatial layouts. They are also major aids to [&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":[407,101,161],"_links":{"self":[{"href":"https:\/\/braininspirednavigation.com\/index.php?rest_route=\/wp\/v2\/posts\/1924"}],"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=1924"}],"version-history":[{"count":1,"href":"https:\/\/braininspirednavigation.com\/index.php?rest_route=\/wp\/v2\/posts\/1924\/revisions"}],"predecessor-version":[{"id":1925,"href":"https:\/\/braininspirednavigation.com\/index.php?rest_route=\/wp\/v2\/posts\/1924\/revisions\/1925"}],"wp:attachment":[{"href":"https:\/\/braininspirednavigation.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1924"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/braininspirednavigation.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1924"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/braininspirednavigation.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1924"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}