Context familiarity is a third kind of episodic memory distinct from item familiarity and recollection

Autor: Richard J. Addante, Evan Clise, Randall Waechter, Jesse Bengson, Daniel L. Drane, Jahdiel Perez-Caban
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: iScience, Vol 27, Iss 12, Pp 111439- (2024)
Druh dokumentu: article
ISSN: 2589-0042
DOI: 10.1016/j.isci.2024.111439
Popis: Summary: Episodic memory is accounted for with two processes: “familiarity” when generally recognizing an item and “recollection” when retrieving the full contextual details bound with the item. We tested a combination of item recognition confidence and source memory, focusing upon three conditions: “item-only hits with source unknown” (‘item familiarity’), “low-confidence hits with correct source memory” (‘context familiarity’), and “high-confidence hits with correct source memory” (‘recollection’). Behaviorally, context familiarity was slower than the others during item recognition, but faster during source memory. Electrophysiologically, a triple dissociation was evident in event-related potentials (ERPs), which was independently replicated. Context familiarity exhibited a negative effect from 800 to 1200 ms, differentiated from positive ERPs for item-familiarity (400–600 ms) and recollection (600–900 ms). These three conditions thus reflect mutually exclusive, fundamentally different processes of episodic memory, and we offer a new, tri-component model of memory. Context familiarity is a third distinct process of episodic memory.
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