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Aging Influences the Efficiency of Attentional Maintenance in Verbal Working Memory

Author

Listed:
  • Gabriel JarjatMA
  • Sophie PortratPhD
  • Pascal Hot

Abstract

ObjectivesNumerous studies reported an age-related deficit in verbal working memory (WM). Beyond the well-established general factors of cognitive aging, the alteration of the specific WM maintenance mechanisms may account for this deficit. This paper aims to investigate the hypothesis that WM attentional maintenance is impaired with age.MethodIn a WM task adapted to individual short-term memory and processing speed, younger and older participants maintained letters while verbally responding to a concurrent processing task, in order to constrain the use of rehearsal. Critically, the opportunity to use attentional maintenance was manipulated by varying the cognitive load (CL) of the concurrent processing via its nature and pace.ResultsYounger participants outperformed older participants and, in both groups, recall performance decreased as the CL increased. Importantly, in line with our predictions, the CL effect was modulated by age. Older adults benefited less from free pauses that allowed participants to engage in attentional maintenance of WM traces.DiscussionAlthough still effective in normal aging, WM attentional maintenance seems to be altered. It could therefore be a good candidate to account for WM age-related deficits.

Suggested Citation

  • Gabriel JarjatMA & Sophie PortratPhD & Pascal Hot, 2019. "Aging Influences the Efficiency of Attentional Maintenance in Verbal Working Memory," The Journals of Gerontology: Series B, The Gerontological Society of America, vol. 74(4), pages 600-608.
    • Handle: RePEc:oup:geronb:v:74:y:2019:i:4:p:600-608.
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    File URL: http://hdl.handle.net/10.1093/geronb/gby067
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