James Grange j.a.grange@keele.ac.uk
Does Task Activation in Task Switching Influence Inhibition or Episodic Interference?
grange
Authors
Abstract
N-2 repetition costs in task switching refer to slower responses to ABA sequences compared to CBA sequences, reflecting the persisting inhibition of task A across the ABA sequence. The magnitude of inhibition is thought to be sensitive to activation levels of interfering tasks. This is supported by larger n-2 repetition costs when the response-cue interval (RCI) is reduced: At short RCIs, a just-performed task is highly active when a new task is required, triggering more inhibition. However, recent work has shown that much of the n-2 repetition cost measures episodic interference, rather than inhibition. The current study addressed whether RCI manipulations influence inhibition or episodic interference. N-2 repetition costs were considerably reduced when episodic interference was controlled. Increasing the RCI led to equivalent reductions in the n-2 repetition cost for inhibition and episodic components of the cost, but for the former, the cost was entirely absent at longer RCIs.
Acceptance Date | Jul 23, 2018 |
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Publication Date | Jan 14, 2019 |
Journal | Experimental Psychology |
Print ISSN | 1618-3169 |
Publisher | Hogrefe |
Pages | 393 -404 |
DOI | https://doi.org/10.1027/1618-3169/a000423 |
Keywords | cognitive control, episodic retrieval, inhibition, task switching |
Publisher URL | https://doi.org/10.1027/1618-3169/a000423 |
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https://creativecommons.org/licenses/by-nc/4.0/
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