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Hippocampal activity during recognition memory co‐varies with the accuracy and confidence of source memory judgments
Author(s) -
Yu Sarah S.,
Johnson Jeffrey D.,
Rugg Michael D.
Publication year - 2012
Publication title -
hippocampus
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.767
H-Index - 155
eISSN - 1098-1063
pISSN - 1050-9631
DOI - 10.1002/hipo.20982
Subject(s) - recall , hippocampus , recognition memory , psychology , memory test , cognitive psychology , explicit memory , hippocampal formation , episodic memory , memory errors , computer science , neuroscience , cognition
It has been proposed that the hippocampus selectively supports retrieval of contextual associations, but an alternative view holds that the hippocampus supports strong memories regardless of whether they contain contextual information. We employed a memory test that combined the ‘Remember/Know’ and source memory procedures, which allowed test items to be segregated both by memory strength (recognition accuracy) and, separately, by the quality of the contextual information that could be retrieved (indexed by the accuracy/confidence of a source memory judgment). As measured by fMRI, retrieval‐related hippocampal activity tracked the quality of retrieved contextual information and not memory strength. These findings are consistent with the proposal that the hippocampus supports contextual recollection rather than recognition memory more generally. © 2011 Wiley Periodicals, Inc.