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dc.contributor.authorPettigrew, Corinne
Martin, Randi C.
dc.date.accessioned 2016-01-14T20:01:03Z
dc.date.available 2016-01-14T20:01:03Z
dc.date.issued 2015
dc.identifier.citation Pettigrew, Corinne and Martin, Randi C.. "The Role of Working Memory Capacity and Interference Resolution Mechanisms in Task Switching." The Quarterly Journal of Experimental Psychology, (2015) Taylor & Francis: http://dx.doi.org/10.1080/17470218.2015.1121282.
dc.identifier.urihttps://hdl.handle.net/1911/87814
dc.description.abstract Theories of task switching have emphasized a number of control mechanisms that may support the ability to flexibly switch between tasks. The present study examined the extent to which individual differences in working memory (WM) capacity and two measures of interference resolution, response-distractor inhibition and resistance to proactive interference (PI), account for variability in task switching, including global costs, local costs, and N-2 repetition costs. 102 young and 60 older adults were tested on a battery of tasks. Composite scores were created for WM capacity, response-distractor inhibition, and resistance to PI; shifting was indexed by rate residual scores which combine response time and accuracy and account for individual differences in processing speed. Composite scores served as predictors of task switching. WM was significantly related to global switch costs. While resistance to PI and WM explained some variance in local costs, these effects did not reach significance. In contrast, none of the control measures explained variance in N-2 repetition costs. Furthermore, age effects were only evident for N-2 repetition costs, with older adults demonstrating larger costs than young adults. Results are discussed within the context of theoretical models of task switching.
dc.language.iso eng
dc.publisher Taylor & Francis
dc.rights This is an author's peer-reviewed final manuscript, as accepted by the publisher. The published article is copyrighted by Taylor & Francis.
dc.title The Role of Working Memory Capacity and Interference Resolution Mechanisms in Task Switching
dc.type Journal article
dc.contributor.funder Rice University
dc.contributor.funder National Institute on Aging
dc.citation.journalTitle The Quarterly Journal of Experimental Psychology
dc.subject.keywordtask switching
shifting
working memory
interference resolution
inhibition
dc.type.dcmi Text
dc.identifier.doihttp://dx.doi.org/10.1080/17470218.2015.1121282
dc.identifier.grantID Rice University Social Sciences Research Institute Dissertation Grant (Rice University)
dc.identifier.grantID Rice University Department of Psychology Maurin Fund Award (Rice University)
dc.identifier.grantID T32 AG027668 (National Institute on Aging)
dc.type.publication post-print


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