{"pk":28566,"title":"A Mechanistic Account of Constraints on Control-Dependent Processing:Shared Representation, Conflict and Persistence","subtitle":null,"abstract":"One of the most fundamental and striking limitations of hu-man cognitive function is the constraint on the number ofcontrol-dependent processes that can be executed simultane-ously. However, the sources of this capacity constraint re-main largely unexplored. Previous work has attributed the con-straints on control-dependent processing to the sharing of rep-resentations between tasks in neural systems. Here, we exam-ine how shared representations interact with two other factorsin producing constraints on control-dependent processing. Wefirst demonstrate that the detrimental effects of shared repre-sentations on multitasking performance are contingent on theamount of conflict that is induced by the tasks that share rep-resentations. We then examine how the persistence of sharedrepresentations between tasks affects processing interferenceduring serial task execution. Finally, we discuss how this set ofmechanisms can account for various phenomena in neural ar-chitectures, including the psychological refractory period, taskswitch costs, as well as constraints on cognitive control.","language":"eng","license":{"name":"","short_name":"","text":null,"url":""},"keywords":[{"word":"cognitive control; capacity constraint; dual-tasking; psychological refractory period; neural networks"}],"section":"Papers with Oral Presentations","is_remote":true,"remote_url":"https://escholarship.org/uc/item/0q15s405","frozenauthors":[{"first_name":"Sebastian","middle_name":"","last_name":"Musslick","name_suffix":"","institution":"Princeton University","department":""},{"first_name":"Jonathan","middle_name":"D.","last_name":"Cohen","name_suffix":"","institution":"Princeton University","department":""}],"date_submitted":null,"date_accepted":null,"date_published":"2019-01-01T18:00:00Z","render_galley":null,"galleys":[{"label":"PDF","type":"pdf","path":"https://journalpub.escholarship.org/cognitivesciencesociety/article/28566/galley/18437/download/"}]}