Aging, working memory capacity and the proactive control of recollection: an event-related potential study

  • Alexandra Morcom (Creator)
  • Ronny Wiegand (Creator)
  • Jessica Keating (Creator)
  • Caitlin Affleck-Brodie (Creator)

Dataset

Abstract

The present study investigated the role of working memory capacity (WMC) in the control of recollection in young and older adults. We used electroencephalographic event-related potentials (ERPs) to examine the effects of age and of individual differences in WMC on the ability to prioritize recollection according to current goals. Targets in a recognition exclusion task were words encoded using two alternative decisions. The left parietal ERP old/new effect was used as an electrophysiological index of recollection, and the selectivity of recollection measured in terms of the difference in its magnitude according to whether recognized items were targets or non-targets. Young adults with higher WMC showed greater recollection selectivity than those with lower WMC, while older adults showed nonselective recollection which did not vary with WMC. The data suggest that aging impairs the ability to engage cognitive control effectively to prioritize what will be recollected.

Data Citation

Morcom, Alexa; Wiegand, Ronny; Keating, Jessica; Affleck-Brodie, Caitlin. (2017). Aging, working memory capacity and the proactive control of recollection: an event-related potential study, 2015 [dataset]. University of Edinburgh. http://dx.doi.org/10.7488/ds/2073.
Date made available23 Jun 2017
PublisherEdinburgh DataShare
Temporal coverage1 Apr 2015 - 14 Sep 2015
Geographical coverageEdinburgh, United Kingdom

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