Computational and neural mechanisms of task-switching

J.R. Reynolds; T.S. Braver; J.W. Brown; S. van der Stigchel

doi:10.1016/j.neucom.2005.12.102

Computational and neural mechanisms of task-switching

J.R. Reynolds, T.S. Braver, J.W. Brown, S. van der Stigchel

Cognitive Psychology

Research output: Contribution to Journal › Article › Academic › peer-review

Abstract

Switching between tasks that overlap in perceptual and response characteristics is assumed to rely upon the maintenance of task representations in prefrontal cortex (PFC). However, task-switching studies demonstrate "switch costs," even when there is sufficient time to prepare for a new task. These costs suggest that task-switching performance reflects a complex interplay between priming and the updating and maintenance of task representations. We describe a computational model in which this interaction is made explicit and linked to the dynamics of PFC. Simulation results account for a variety of empirical phenomena and predict a double dissociation in lateral PFC that was subsequently identified. © 2006 Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	1332-1336
Number of pages	5
Journal	Neurocomputing
Volume	69
Issue number	10-12
DOIs	https://doi.org/10.1016/j.neucom.2005.12.102
Publication status	Published - 2006

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10.1016/j.neucom.2005.12.102

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AU - Braver, T.S.

AU - Brown, J.W.

AU - van der Stigchel, S.

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AB - Switching between tasks that overlap in perceptual and response characteristics is assumed to rely upon the maintenance of task representations in prefrontal cortex (PFC). However, task-switching studies demonstrate "switch costs," even when there is sufficient time to prepare for a new task. These costs suggest that task-switching performance reflects a complex interplay between priming and the updating and maintenance of task representations. We describe a computational model in which this interaction is made explicit and linked to the dynamics of PFC. Simulation results account for a variety of empirical phenomena and predict a double dissociation in lateral PFC that was subsequently identified. © 2006 Elsevier B.V. All rights reserved.

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DO - 10.1016/j.neucom.2005.12.102

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SP - 1332

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JO - Neurocomputing

JF - Neurocomputing

IS - 10-12

ER -

Computational and neural mechanisms of task-switching

Abstract

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