Journal
AGING NEUROPSYCHOLOGY AND COGNITION
Volume 16, Issue 3, Pages 241-259Publisher
ROUTLEDGE JOURNALS, TAYLOR & FRANCIS LTD
DOI: 10.1080/13825580802438868
Keywords
Language production; Dual task demands
Funding
- NIA NIH HHS [R01 AG025906-03, R01 AG025906, R01 AG025906-01, R01 AG025906-04, R01 AG-025906, R01 AG025906-02] Funding Source: Medline
- NICHD NIH HHS [P30 HD002528, P30 HD-002528] Funding Source: Medline
- NIDCD NIH HHS [P30 DC-005803, P30 DC005803] Funding Source: Medline
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A digital Pursuit rotor task was used to measure dual task costs of language production by young and older adults. After training on the pursuit rotor, participants were asked to track the moving target while providing a language sample. When simultaneously engaged, Young adults experienced greater dual task costs to tracking, fluency, and grammatical complexity than older adults. Older adults were able to preserve their tracking performance by speaking more slowly. Individual differences in working memory, processing speed, and Stroop interference affected vulnerability to dual task costs. These results demonstrate the utility Of using a digital pursuit rotor to study the effects of aging and dual task demands on language production and confirm prior findings that young and older adults use different strategies to accommodate to dual task demands.
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