Dual-Task Interference in Simple Tasks: Data and …

Copyright 1994 by the American Psychological Association. Inc. Psychological Bulletin 1994. Vol. 116. No. 2. 220-244 0033-2909/94/$ Dual-Task Interference in Simple tasks : data and Theory Harold Pashler People often have trouble performing 2 relatively Simple tasks concurrently. The causes of this inter-ference and its implications for the nature of attentional limitations have been controversial for 40 years, but recent experimental findings are beginning to provide some answers. Studies of the psychological refractory period effect indicate a stubborn bottleneck encompassing the process of choosing actions and probably memory retrieval generally, together with certain other cognitive operations. Other limitations associated with task preparation, sensory-perceptual processes, and timing can generate additional and distinct forms of Interference .

di scri minat ons and conc u rre n t cont s t ask pefrmance. These are large fields of study that cannot be reviewed compre-hensively here: instead, the focus is …

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