Instantiation of general terms in young and older adults.
Instantiation of general terms in discourse requires inference from general world knowledge and use of linguistic context to particularize meaning. According to the semantic deficit hypothesis, older adults should be less likely than young adults to generate or to store such inferences. In Experiments 1 and 2 an indirect measure, relatedness judgment, was used to assess immediate comprehension and memory for inferences. In Experiment 3 a direct measure, cued recall, was used to tap memory for inferences. No age differences in immediate or delayed memory were observed in Experiments 1 or 2. In Experiment 3 older adults recalled fewer sentences, but there was no evidence for a specific decrement in storage of inferential material. Older adults are not impaired in ability to draw inferences based on general world knowledge, nor are they more likely than young adults to encode linguistic information in a general, stereotypic fashion.
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Psychology Department, Pitzer College, Claremont, California 91711.
Valencia-Laver
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Zavis
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D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000375:Aging / Q000523:psychology*; D001288:Attention; D003210:Concept Formation; D005260:Female; D006801:Humans; D008297:Male; D011939:Mental Recall; D010153:Paired-Associate Learning; D011930:Reaction Time; D011932:Reading; D014706:Verbal Learning