Journal article
An Interactive Race Model of Divided Attention
Journal of experimental psychology. Human perception and performance, Vol.17(2), pp.520-538
05/1991
DOI: 10.1037/0096-1523.17.2.520
PMID: 1830090
Abstract
Two classes of models have been proposed to explain how redundant information extracted from separate sources comes to activate a single response. Each provides a fundamentally different account of why responses to redundant signals are typically faster than those to either signal alone (the
redundant-signals effect
). Independent race models assume that a race occurs between perceptual codes on independent channels and that only the winner activates the response. Coactivation models assume that there is some form of energy or activation-strength summation, with information being pooled across channels prior to decision. An intermediate class of models is introduced and a specific exemplar, the interactive race model, is tested in a series of redundant-target detection experiments. In particular, we examine the effects on performance of two types of contingency that have previously been overlooked as sources of task-relevant information. The results reveal that response times are significantly influenced by both interstimulus and stimulus-response contingencies. The interactive race model provides a natural account of these findings as well as several otherwise puzzling results in the divided-attention literature.
Details
- Title: Subtitle
- An Interactive Race Model of Divided Attention
- Creators
- J. Toby Mordkoff - The Johns Hopkins UniversitySteven Yantis - The Johns Hopkins University
- Resource Type
- Journal article
- Publication Details
- Journal of experimental psychology. Human perception and performance, Vol.17(2), pp.520-538
- Publisher
- American Psychological Association
- DOI
- 10.1037/0096-1523.17.2.520
- PMID
- 1830090
- ISSN
- 0096-1523
- eISSN
- 1939-1277
- Language
- English
- Date published
- 05/1991
- Academic Unit
- Psychological and Brain Sciences
- Record Identifier
- 9984002429202771
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