Working memory capacity is related to variations in the magnitude of an electrophysiological marker of recollection

Journal article


Elward, R. and Wilding, E.L. (2010). Working memory capacity is related to variations in the magnitude of an electrophysiological marker of recollection. Brain Research. 1342, pp. 55-62.
AuthorsElward, R. and Wilding, E.L.
Abstract

he links between the resources available for cognitive control and the ability to recover and maintain episodic content were investigated by contrasting an ERP index of recollection (the left-parietal ERP old/new effect) with a measure of working memory capacity (WMC). Participants were given the O-Span measure of WMC and completed a retrieval task in which they had to make responses on one key to previously studied words (targets) and responses on a second key to words that were presented at retrieval on either one or two occasions (new words and non-targets, respectively). The size of the ERP index of recollection associated with correct responses to targets was correlated with WMC, a finding consistent with the view that this ERP effect is linked to operations associated with maintaining information on-line in service of task goals. In addition, the degree to which left-parietal ERP old/new effects for targets were larger than for non-targets increased as WMC increased. Larger left-parietal ERP old/new effects for targets than for non-targets have been interpreted as evidence of successful prioritisation of recollection of target information. The link with WMC reported here is consistent this view, in so far as WMC indexes the availability of resources that are necessary to exert cognitive control over memory retrieval.

Year2010
JournalBrain Research
Journal citation1342, pp. 55-62
PublisherElsevier
ISSN0006-8993
Digital Object Identifier (DOI)doi:10.1016/j.brainres.2010.04.040
Web address (URL)https://www.sciencedirect.com/science/article/pii/S0006899310009376?via%3Dihub
Publication dates
Online25 Apr 2010
Print25 Jun 2010
Publication process dates
Accepted18 Apr 2010
Deposited16 Aug 2019
Accepted author manuscript
License
CC BY 4.0
File Access Level
Open
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