Neural correlates of post-retrieval monitoring in older adults are preserved under divided attention, but are decoupled from memory performance

Horne, Erin D., de Chastelaine, Marianne and Rugg, Michael D. (2021) Neural correlates of post-retrieval monitoring in older adults are preserved under divided attention, but are decoupled from memory performance. Neurobiology of Aging, 97. pp. 106-119. ISSN 0197-4580

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Abstract

Post-retrieval monitoring is associated with engagement of anterior cingulate and dorsolateral prefrontal cortex. Recent fMRI studies reported age-invariant monitoring effects in these regions and an age-invariant correlation between these effects and memory performance. The present study examined monitoring effects during associative recognition (difference in activity elicited by ‘rearranged’ and ‘intact’ test pairs) under single and dual (tone detection) task conditions in young and older adults (Ns = 28 per group). It was predicted that, for the older adults only, dual tasking would attenuate memory performance and monitoring effects and weaken their correlation. Consistent with this prediction, in the older group imposition of the secondary task led to lower memory performance and elimination of the relationship between monitoring effects and performance. However, the size of the effects did not differ between single and dual task conditions. The findings suggest that the decline in older adults’ memory performance in the dual task condition resulted not from impaired monitoring, but from a different cause that also weakened the dependence of performance on monitoring.

Item Type: Article
Faculty \ School: Faculty of Social Sciences > School of Psychology
Related URLs:
Depositing User: LivePure Connector
Date Deposited: 20 Oct 2020 23:58
Last Modified: 14 Apr 2021 23:50
URI: https://ueaeprints.uea.ac.uk/id/eprint/77378
DOI: 10.1016/j.neurobiolaging.2020.10.010

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