Computational and neural mechanisms of task-switching

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

Research output: Contribution to JournalArticleAcademicpeer-review


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 languageEnglish
Pages (from-to)1332-1336
Number of pages5
Issue number10-12
Publication statusPublished - 2006


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