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Modeling task switching without switching tasks: A short-term priming account of explicitly cued performance

By Darryl W. Schneider and Gordon D. Logan

Abstract

Switch costs in task switching are commonly attributed to an executive control process of task-set reconfiguration, particularly in studies involving the explicit task-cuing procedure. The authors propose an alternative account of explicitly cued performance that is based on 2 mechanisms: priming of cue encoding from residual activation of cues in short-term memory and compound cue retrieval of responses from long-term memory. Their short-term priming account explains the repeated cue encoding benefit, switch cost, reduction in switch cost with preparation time, and other effects. The authors develop a mathematical model of their priming account and fit it to data from 3 experiments, demonstrating that a set of basic psychological processes can produce several effects—including putative switch costs— without switching tasks

Topics: task switching, switch cost, priming
Year: 2005
OAI identifier: oai:CiteSeerX.psu:10.1.1.417.9443
Provided by: CiteSeerX
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