{"pk":26899,"title":"A Biologically Constrained Model of Semantic Memory Search","subtitle":null,"abstract":"The semantic fluency task has been used to understand the ef-fects of semantic relationships on human memory search. Avariety of computational models have been proposed that ex-plain human behavioral data, yet it remains unclear how mil-lions of spiking neurons work in unison to realize the cogni-tive processes involved in memory search. In this paper, wepresent a biologically constrained neural network model thatperforms the task in a fashion similar to humans. The modelreproduces experimentally observed response timing effects,as well as similarity trends within and across semantic cate-gories derived from responses. Three different sources of theassociation data have been tested by embedding associationsin neural connections, with free association norms providingthe best match.","language":"eng","license":{"name":"","short_name":"","text":null,"url":""},"keywords":[{"word":"semantic memory; associations; semantic search;spiking neural network; neural engineering framework"}],"section":"Talks: Papers","is_remote":true,"remote_url":"https://escholarship.org/uc/item/1n71300b","frozenauthors":[{"first_name":"Ivana","middle_name":"","last_name":"Kajic","name_suffix":"","institution":"University of Waterloo","department":""},{"first_name":"Jan","middle_name":"","last_name":"Gosmann","name_suffix":"","institution":"University of Waterloo","department":""},{"first_name":"Brent","middle_name":"","last_name":"Komer","name_suffix":"","institution":"University of Waterloo","department":""},{"first_name":"Ryan","middle_name":"W.","last_name":"Orr","name_suffix":"","institution":"University of Waterloo","department":""},{"first_name":"Terrence","middle_name":"C.","last_name":"Stewart","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":"2017-01-01T18:00:00Z","render_galley":null,"galleys":[{"label":"PDF","type":"pdf","path":"https://journalpub.escholarship.org/cognitivesciencesociety/article/26899/galley/16535/download/"}]}