Abstract
Age-related differences in memory for facts, source, and contextual details were examined in healthy young (18-35 years old) and old (65-80 years old) volunteers. In all tested memory functions, decline over time was greater in the elderly than in the young. A time-dependent increase in the prevalence of source amnesia errors was clearly associated with old age. Contrary to several recent reports, measures of frontal lobe functions did not predict source memory. Nevertheless, some of these putative frontal function measures were related to memory for contextual details. The number of perseverative responses on the Wisconsin Card Sorting Test was inversely related to performance on both factual and contextual memory tests, but the association with contextual memory was stronger. Difficulties with response selection on a Stroop task predicted poor contextual memory in young but not in old adults.
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