{"id":3012,"date":"2024-08-09T10:47:56","date_gmt":"2024-08-09T00:47:56","guid":{"rendered":"https:\/\/www.cognav.net\/?p=3012"},"modified":"2024-08-09T10:47:56","modified_gmt":"2024-08-09T00:47:56","slug":"how-the-hippocampus-supports-episodic-and-spatial-memory-at-the-same-time","status":"publish","type":"post","link":"https:\/\/braininspirednavigation.com\/?p=3012","title":{"rendered":"How the hippocampus supports episodic and spatial memory at the same time?"},"content":{"rendered":"<p style=\"text-align: justify;\">Alexander Nitsch, Naomi de Haas, Mona M. Garvert, Christian F. Doeller. <a href=\"https:\/\/www.biorxiv.org\/content\/10.1101\/2024.06.24.600445v1\"><strong>Integrating episodic and spatial context signals in the hippocampu<\/strong><\/a>s. bioRxiv 2024.06.24.600445; doi: https:\/\/doi.org\/10.1101\/2024.06.24.600445<\/p>\n<p style=\"text-align: justify;\">Abstract<br \/>\n&#8220;<strong><span style=\"color: #ff0000;\">Episodic and spatial memory are the two key components of the mnemonic system in humans<\/span><\/strong>. Episodic memory enables us to remember events from the past whereas spatial memory enables us to form a map-like representation of the environment. Interestingly, these seemingly different functions rely on the same brain structure: the hippocampus. Yet, <strong><span style=\"color: #ff0000;\">how the hippocampus supports both at the same time remains unclear<\/span><\/strong>. Here, we tested the hypotheses that the hippocampus supports these two systems either via a common coding mechanism or via a parallel processing mechanism. To this end, we combined functional magnetic resonance imaging (fMRI) with an episodic life-simulation task and a spatial virtual reality task to manipulate episodic and spatial context associations of objects. We then investigated fMRI adaptation effects between these objects as a result of shared contexts. <strong><span style=\"color: #ff0000;\">We found that the fMRI signal in the anterior hippocampus scaled with the combined prediction of shared episodic and spatial contexts, in line with the idea of a common coding mechanism<\/span><\/strong>. We found no evidence for a parallel processing mechanism, as there were no differences between episodic and spatial effects. <strong><span style=\"color: #ff0000;\">The common coding effect for episodic and spatial memory dovetails with the broader notion of domain-general hippocampal cognitive maps<\/span><\/strong>.&#8221;<\/p>\n<p style=\"text-align: justify;\">Alexander Nitsch, Naomi de Haas, Mona M. Garvert, Christian F. Doeller. <a href=\"https:\/\/www.biorxiv.org\/content\/10.1101\/2024.06.24.600445v1\"><strong>Integrating episodic and spatial context signals in the hippocampu<\/strong><\/a>s. bioRxiv 2024.06.24.600445; doi: https:\/\/doi.org\/10.1101\/2024.06.24.600445<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Alexander Nitsch, Naomi de Haas, Mona M. Garvert, Christian F. Doeller. Integrating episodic and spatial context signals in the hippocampus. bioRxiv 2024.06.24.600445; doi: https:\/\/doi.org\/10.1101\/2024.06.24.600445 Abstract &#8220;Episodic and spatial memory are the two key components of the mnemonic system in humans. Episodic memory enables us to remember events from the past whereas spatial memory enables us [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[987,96,636,346,519],"tags":[1140,169,349,358],"_links":{"self":[{"href":"https:\/\/braininspirednavigation.com\/index.php?rest_route=\/wp\/v2\/posts\/3012"}],"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=3012"}],"version-history":[{"count":1,"href":"https:\/\/braininspirednavigation.com\/index.php?rest_route=\/wp\/v2\/posts\/3012\/revisions"}],"predecessor-version":[{"id":3013,"href":"https:\/\/braininspirednavigation.com\/index.php?rest_route=\/wp\/v2\/posts\/3012\/revisions\/3013"}],"wp:attachment":[{"href":"https:\/\/braininspirednavigation.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3012"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/braininspirednavigation.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3012"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/braininspirednavigation.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3012"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}