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| Research article summary (published 30 Jan 2003): |
A central capacity sharing model of dual-task performance.
Full Abstract
The authors present the central capacity sharing (CCS) model and derive equations describing its behaviors to explain results from dual-task situations. The predictions of the CCS model are contrasted with those of the central bottleneck model. The CCS model predicts all of the hallmark effects of the psychological refractory period (PRP) pardigm:
-1 slope of the PRP effect at short stimulus onset asynchronies (SOAs), underadditivity of precentral Task 2 manipulations, additivity of central or postcentral Task 2 manipulations with SOA, and carry forward to Task 2 of Task 1 precentral or central manipulations at short SOAs. The CCS model also predicts that Task 1 response times increase with decreasing SOA. The model is a viable alternative to the central bottleneck model.
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Author information
Author/s: Tombu, Michael (M); Jolicoeur, Pierre (P);
Affiliation: Department of Psychology, University of Waterloo, Ontario, Canada. mt2tombu(-atsign-)cgl.uwaterloo.ca
Journal and publication information
Publication Type: Journal Article; Research Support, Non-U.S. Gov't; Review
Journal: Journal of experimental psychology. Human perception and performance (J Exp Psychol Hum Percept Perform), published in United States. (Language: eng)
Reference: 2003-Feb; vol 29 (issue 1) : pp 3-18
Dates: Created 2003/04/02; Completed 2003/06/11; Revised 2006/11/15;
PMID: 12669744, status: MEDLINE (last retrieval date: 11/6/2008)
Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.
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