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ERIC Number: EJ1182879
Record Type: Journal
Publication Date: 2018-Jul
Pages: 16
Abstractor: As Provided
ISBN: N/A
ISSN: ISSN-0278-7393
EISSN: N/A
Perceptual Boundaries Cause Mnemonic Trade-Offs between Local Boundary Processing and Across-Trial Associative Binding
Heusser, Andrew C.; Ezzyat, Youssef; Shiff, Ilana; Davachi, Lila
Journal of Experimental Psychology: Learning, Memory, and Cognition, v44 n7 p1075-1090 Jul 2018
Episodic memories are not veridical records of our lives, but rather are better described as organized summaries of experience. Theories and empirical research suggest that shifts in perceptual, temporal, and semantic information lead to a chunking of our continuous experiences into segments, or "events." However, the consequences of these contextual shifts on memory formation and organization remains unclear. In a series of 3 behavioral studies, we introduced context shifts (or "event boundaries") between trains of stimuli and then examined the influence of the boundaries on several measures of associative memory. In Experiment 1, we found that perceptual event boundaries strengthened associative binding of item-context pairings present at event boundaries. In Experiment 2, we observed reduced temporal order memory for items encoded in distinct events relative to items encoded within the same event, and a trade-off between the speed of processing at boundaries, and temporal order memory for items that flanked those boundaries. Finally, in Experiment 3 we found that event organization imprinted structure on the order in which items were freely recalled. These results provide insight into how boundary- and event-related organizational processes during encoding shape subsequent representations of events in episodic memory.
American Psychological Association. Journals Department, 750 First Street NE, Washington, DC 20002. Tel: 800-374-2721; Tel: 202-336-5510; Fax: 202-336-5502; e-mail: order@apa.org; Web site: http://www.apa.org
Publication Type: Journal Articles; Reports - Research
Education Level: Higher Education
Audience: N/A
Language: English
Sponsor: National Institute of Mental Health (DHHS/NIH)
Authoring Institution: N/A
Identifiers - Location: New York
Grant or Contract Numbers: RO1MH074692