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Simultaneous cognitive operations in working memory after dual-task practice

  • The authors tested the hypothesis that with adequate practice, people can execute 2 cognitive operations in working memory simultaneously. In Experiment 1, 6 students practiced updating 2 items in working memory through 2 sequences of operations (1 numerical, 1 spatial). In different blocks, imperative stimuli for the 2 sequences of operations were presented either simultaneously or sequentially. Initially, most participants experienced substantial dual-task costs. After 24 sessions of practice, operation latencies for simultaneous presentation were equal to the maximum of times for the 2 operations in the sequential condition, suggesting perfect timesharing. Experiment 2 showed that a reduction of dual-task costs requires practice on the combination of the 2 updating tasks, not just practice on each individual task. Hence, the reduction of dual-task costs cannot be explained by shortening or automatization of individual operations

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Metadaten
Author details:Klaus OberauerORCiDGND, Reinhold KlieglORCiDGND
ISSN:0096-1523
Publication type:Article
Language:English
Year of first publication:2004
Publication year:2004
Release date:2017/03/24
Source:Journal of Experimental Psychology-Human Perception and Performance. - ISSN 0096-1523. - 30 (2004), 4, S. 689 - 707
Organizational units:Humanwissenschaftliche Fakultät / Strukturbereich Kognitionswissenschaften / Department Psychologie
Peer review:Referiert
Publishing method:Open Access
Institution name at the time of the publication:Humanwissenschaftliche Fakultät / Institut für Psychologie
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