Differences between young and older adults in unity and diversity of executive functions
AuthorGlisky, Elizabeth L
Alexander, Gene E
Woolverton, Cindy B
Zigman, Erika K
Nguyen, Lauren A
Figueredo, Aurelio J
AffiliationUniv Arizona, Dept Psychol
MetadataShow full item record
PublisherROUTLEDGE JOURNALS, TAYLOR & FRANCIS LTD
CitationGlisky, E. L., Alexander, G. E., Hou, M., Kawa, K., Woolverton, C. B., Zigman, E. K., ... & Ryan, L. (2020). Differences between young and older adults in unity and diversity of executive functions. Aging, Neuropsychology, and Cognition, 1-26.
RightsCopyright © 2020 Informa UK Limited, trading as Taylor & Francis Group.
Collection InformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at firstname.lastname@example.org.
AbstractMiyake and colleagues (2000) identified three independent but correlated components of executive function in young adults - set shifting, inhibition, and updating. The present study compared the factor structure in young adults to two groups of older adults (ages 60-73 and 74-98). A three-factor model of shifting, inhibition and updating was confirmed in young adults, but the factors were weakly or uncorrelated. In both older groups, a two-factor solution was indicated, updating/inhibition and shifting, which were moderately correlated in young-older adults, and strongly correlated in the old-older group. A nested factors model in the oldest group revealed a common factor, which loaded on all but one of the tests, and a shifting-specific factor. We concluded that in young adulthood, shifting, updating and inhibition may operate relatively independently. As people age and processing becomes less efficient, they may rely increasingly on general executive control processes, reallocating their limited resources to optimize performance.
Note12 month embargo; published online: 08 October 2020
VersionFinal accepted manuscript