en
Scientific article
English

The contribution of aging to the understanding of the dimensionality of executive functions

Published inArchives of gerontology and geriatrics, vol. 49, no. 1, p. e51-59
Publication date2009
Abstract

It has been reported in the literature that executive functions may be fractioned into updating, shifting, and inhibition. The present study aimed to explore whether these executive sub-components can be identified in a more age-heterogeneous sample and see if they are prone to an age-related decline. We tested the performances of 81 individuals aged from 18 to 88 years old in each executive sub-component, working memory, fluid intelligence and processing speed. Correlation analysis revealed only a slight positive relationship between the two updating measures. A linear decrement with age was observed only for two complex executive tests. Tasks indexing working memory, processing speed and fluid intelligence showed a stronger linear decline with age than executive tasks. In conclusion, our results did not replicate the executive structure known from the literature, and revealed that decrement in executive function is not an unavoidable concomitant of aging but rather concerns specific executive tasks.

Keywords
  • Adolescent
  • Adult
  • Aged
  • Aged, 80 and over
  • Aging/*physiology
  • Cognition Disorders/*diagnosis/epidemiology
  • Female
  • Humans
  • Male
  • Middle Aged
  • Neuropsychological Tests
  • Young Adult
Citation (ISO format)
DELALOYE, Christophe et al. The contribution of aging to the understanding of the dimensionality of executive functions. In: Archives of gerontology and geriatrics, 2009, vol. 49, n° 1, p. e51–59. doi: 10.1016/j.archger.2008.08.011
Main files (1)
Article
accessLevelRestricted
Identifiers
ISSN of the journal0167-4943
560views
0downloads

Technical informations

Creation04/23/2012 1:23:21 PM
First validation04/23/2012 1:23:21 PM
Update time03/14/2023 5:24:41 PM
Status update03/14/2023 5:24:41 PM
Last indexation02/12/2024 7:57:41 PM
All rights reserved by Archive ouverte UNIGE and the University of GenevaunigeBlack