Journal
JOURNAL OF EXPERIMENTAL PSYCHOLOGY-LEARNING MEMORY AND COGNITION
Volume 34, Issue 4, Pages 730-740Publisher
AMER PSYCHOLOGICAL ASSOC
DOI: 10.1037/0278-7393.34.4.730
Keywords
source memory; familiarity; unitization; recollection; ROCS
Categories
Funding
- NIMH NIH HHS [R01 MH059352-09, R01 MH068721, MH068721, F32 MH079621, F32 MH079621-02, R01 MH059352, MH059352, R01 MH068721-04] Funding Source: Medline
- NINDS NIH HHS [NS40813, P01 NS040813] Funding Source: Medline
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Performance on tests of source memory is typically based on recollection of contextual information associated with an item. However, recent neuroimaging results have suggested that the perirhinal cortex, a region thought to support familiarity-based item recognition, may support source attributions if source information is encoded as a feature of the relevant item (i.e., unitized). The authors hypothesized that familiarity may contribute to source memory performance if item and source information are unitized during encoding, whereas performance may rely more heavily on recollection if source information is encoded as an arbitrary contextual association. Three source recognition experiments examining receiver operating characteristics and response deadline performance indicated that familiarity makes a greater contribution to source memory if source and item information are unitized during encoding. These findings suggest that familiarity can contribute to source recognition and that its contribution depends critically on the way item and source information are initially processed.
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