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Working memory capacity for spoken sentences decreases with adult ageing: Recall of fewer but not smaller chunks in older adults
- DOI:
- 10.1080/09658210802261124
pages 773-787
Available online: 19 Sep 2008Abstract
Previous studies show that older adults have poorer immediate recall for language but the reason is unknown. Older adults may recall fewer chunks from working memory, or may have difficulty binding words together to form multi-unit chunks. We examined these two hypotheses by presenting four types of spoken sentences for immediate free recall, differing in the number and length of chunks per trial: four short, simple sentences; eight such sentences; four compound sentences, each incorporating two meaningful, short sentences; and four random word lists, each under a sentence-like intonation. Older adults recalled words from (accessed) fewer clauses than young adults, but there was no ageing deficit in the degree of completion of clauses that were accessed. An age-related decline in working memory capacity measured in chunks appears to account for deficits in memory for spoken language.
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- Available online: 19 Sep 2008
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- a University of Missouri, Columbia, MO, USA
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