Altmann, E. M., & Gray, W. D. (2008). An integrated model of cognitive control in task switching. Psychological Review, 115(3), 602-639.
An integrated model of cognitive control in task switching
A model of cognitive control in task switching is developed in which controlled performance depends on the system maintaining access to a code in episodic memory representing the most-recently cued task. The main constraint on performance is proactive interference from old codes, which limits this access. Other memory processes are organized to overcome this interference, reproducing a wide range of behavioral phenomena as they operate. This cognitive-control model (CCM) accounts for switch cost and other well-known task-switching phenomena, and for effects like within-run slowing and error increase on which other theories are silent. CCM generalizes across multiple task-switching procedures, suggesting that episodic task codes play an important role in keeping the cognitive system focused under a variety of performance constraints.
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