{"pk":26333,"title":"A Dream Model: Reactivation and Re-encoding Mechanisms for Sleep-dependentMemory Consolidation","subtitle":null,"abstract":"We humans spend almost a third of our lives asleep, andthere is mounting evidence that sleep not only maintains, butactually improves many of our cognitive functions. Mem-ory consolidation–the process of crystallizing and integratingmemories into knowledge and skills–is particularly benefittedby sleep. We survey the evidence that sleep aids memory con-solidation in various declarative and implicit tasks and reviewthe basic neurophysiological structure of sleep with a focus onunderstanding what neural systems are involved. Drawing onmachine learning research, we discuss why it might be usefulfor humans–and robots, perhaps–to have such an offline pe-riod for processing, even though humans are clearly capable oflearning incrementally, online. Finally, we propose and simu-late two mechanisms for use in computational memory modelsto accomplish sleep-based consolidation via either or both 1)re-encoding knowledge representations and 2) reactivating andstrengthening recent memories.","language":"eng","license":{"name":"","short_name":"","text":null,"url":""},"keywords":[{"word":"memory consolidation; sleep; dreaming; hip-pocampal replay; memory model"}],"section":"Papers","is_remote":true,"remote_url":"https://escholarship.org/uc/item/9ns183zb","frozenauthors":[{"first_name":"George","middle_name":"","last_name":"Kachergis","name_suffix":"","institution":"New York University","department":""},{"first_name":"Roy","middle_name":"de","last_name":"Kleijn","name_suffix":"","institution":"Leiden University","department":""},{"first_name":"Bernhard","middle_name":"","last_name":"Hommel","name_suffix":"","institution":"Leiden University","department":""}],"date_submitted":null,"date_accepted":null,"date_published":"2016-01-01T18:00:00Z","render_galley":null,"galleys":[{"label":"PDF","type":"pdf","path":"https://journalpub.escholarship.org/cognitivesciencesociety/article/26333/galley/15969/download/"}]}