{"pk":29897,"title":"Accurate representation for spatial cognition using grid cells","subtitle":null,"abstract":"Spatial cognition relies on an internal map-like representationof space provided by hippocampal place cells, which in turnare thought to rely on grid cells as a basis. Spatial Seman-tic Pointers (SSP) have been introduced as a way to representcontinuous spaces and positions via the activity of a spikingneural network. In this work, we further develop SSP rep-resentation to replicate the firing patterns of grid cells. Thisadds biological realism to the SSP representation and links bi-ological findings with a larger theoretical framework for rep-resenting concepts. Furthermore, replicating grid cell activitywith SSPs results in greater accuracy when constructing placecells.Improved accuracy is a result of grid cells forming the op-timal basis for decoding positions and place cell output. Ourresults have implications for modelling spatial cognition andmore general cognitive representations over continuous vari-ables.","language":"eng","license":{"name":"","short_name":"","text":null,"url":""},"keywords":[{"word":"Neural Engineering Framework; Semantic PointerArchitecture; spatial semantic pointer; spatial representation;spiking neural networks; cognitive maps; grid cells; place cells"}],"section":"Poster Session 2","is_remote":true,"remote_url":"https://escholarship.org/uc/item/8720b88v","frozenauthors":[{"first_name":"Nicole","middle_name":"Sandra-Yaffa","last_name":"Dumont","name_suffix":"","institution":"University of Waterloo","department":""},{"first_name":"Chris","middle_name":"","last_name":"Eliasmith","name_suffix":"","institution":"University of Waterloo","department":""}],"date_submitted":null,"date_accepted":null,"date_published":"2020-01-01T13:00:00-05:00","render_galley":null,"galleys":[{"label":"PDF","type":"pdf","path":"https://journalpub.escholarship.org/cognitivesciencesociety/article/29897/galley/19751/download/"}]}