| Limitations on the parallel guidance of visual search: color x color and orientation x orientation conjunctions. | |
MedLine Citation:
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PMID: 2148599 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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In visual search for a conjunction it is much more difficult to search for the conjunction of 2 colors or 2 orientations than for Color x Orientation or Color x Shape conjunctions. The result is not limited to particular colors or shapes. Two colors cannot occupy the same spatial location in Color x Color searches. However, Experiments 6 and 7 show that Color x Shape searches remain efficient even if the color and shape are spatially separated. Our guided search model suggests that in searches for Color x Shape, a parallel color module can guide attention toward the correct color, whereas the shape module guides attention toward the correct shape. Together these 2 sources of guidance lead attention to the target. However, if a target is red and green among red-blue and green-blue distractors, it is not possible to guide search independently toward red items and green items or away from all blue items. |
Authors:
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J M Wolfe; K P Yu; M I Stewart; A D Shorter; S R Friedman-Hill; K R Cave |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S. |
Journal Detail:
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Title: Journal of experimental psychology. Human perception and performance Volume: 16 ISSN: 0096-1523 ISO Abbreviation: J Exp Psychol Hum Percept Perform Publication Date: 1990 Nov |
Date Detail:
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Created Date: 1991-02-19 Completed Date: 1991-02-19 Revised Date: 2007-11-14 |
Medline Journal Info:
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Nlm Unique ID: 7502589 Medline TA: J Exp Psychol Hum Percept Perform Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 879-92 Citation Subset: IM |
Affiliation:
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Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge 02139. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adult Attention* Color Perception* Humans Orientation* Pattern Recognition, Visual* Perceptual Masking Psychophysics |
| Grant Support | |
ID/Acronym/Agency:
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EY05087/EY/NEI NIH HHS |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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