Journal
PSYCHOLOGY AND AGING
Volume 27, Issue 2, Pages 484-497Publisher
AMER PSYCHOLOGICAL ASSOC
DOI: 10.1037/a0024729
Keywords
aging; source memory; binding; associative deficit; remember/know
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Younger adults' remember judgments are accompanied by better memory for the source of an item than know judgments. Furthermore, remember judgments are not merely associated with better memory for individual source features but also with bound memory for multiple source features. However, older adults, independent of their subjective memory experience, are generally less likely to bind source features to an item and to each other in memory (i.e., the associative deficit). In two experiments, we tested whether memory for perceptual source features, independently or bound, is also the basis for older adults' remember responses or if their associative deficit leads them to base their responses on other types of information. The results suggest that retrieval of perceptual source features, individually or bound, forms the basis for younger but not for older adults' remember judgments even when the overall level of memory for perceptual sources is closely equated (Experiment 1) and when attention is explicitly directed to the source information at encoding (Experiment 2).
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