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Article: Collinearity impairs local element visual search

TitleCollinearity impairs local element visual search
Authors
KeywordsCollinear
Salience
Orientation
Visual search
Attentional capture
Issue Date2012
PublisherAmerican Psychological Association. The Journal's web site is located at http://www.apa.org/journals/xhp.html
Citation
Journal of Experimental Psychology: Human Perception and Performance, 2012 [Epub ahead of print] How to Cite?
AbstractIn visual searches, stimuli following the law of good continuity attract attention to the global structure and receive attentional priority. Also, targets that have unique features are of high feature contrast and capture attention in visual search. We report on a salient global structure combined with a high orientation contrast to the background, which actually impairs the search for a local element. In a search display containing 21 x 27 short horizontal element bars, we rotated the orientation of a whole column by 90 degrees so that it stood out as a salient vertical collinear column. Observers searched for a small tilt on one of the elemental bars, and the target only occasionally overlapped with the salient column (overlapping targets) by chance. In other words, the collinear column was not informative about a target search and was task-irrelevant. Our results showed that the target tilt orientation was discerned more slowly and less accurately for overlapping targets than nonoverlapping targets. In five experiments, we demonstrated that collinear grouping on the salient distractor was the major cause of this impairment. Potential mechanisms of how a global structure interacts with perceptual salience are discussed. (PsycINFO Database Record (c) 2012 APA, all rights reserved).
Persistent Identifierhttp://hdl.handle.net/10722/166074
ISSN
2015 Impact Factor: 2.425
2015 SCImago Journal Rankings: 1.893
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorJingling, Len_US
dc.contributor.authorTseng, CHen_US
dc.date.accessioned2012-09-20T08:27:18Z-
dc.date.available2012-09-20T08:27:18Z-
dc.date.issued2012en_US
dc.identifier.citationJournal of Experimental Psychology: Human Perception and Performance, 2012 [Epub ahead of print]en_US
dc.identifier.issn0096-1523-
dc.identifier.urihttp://hdl.handle.net/10722/166074-
dc.description.abstractIn visual searches, stimuli following the law of good continuity attract attention to the global structure and receive attentional priority. Also, targets that have unique features are of high feature contrast and capture attention in visual search. We report on a salient global structure combined with a high orientation contrast to the background, which actually impairs the search for a local element. In a search display containing 21 x 27 short horizontal element bars, we rotated the orientation of a whole column by 90 degrees so that it stood out as a salient vertical collinear column. Observers searched for a small tilt on one of the elemental bars, and the target only occasionally overlapped with the salient column (overlapping targets) by chance. In other words, the collinear column was not informative about a target search and was task-irrelevant. Our results showed that the target tilt orientation was discerned more slowly and less accurately for overlapping targets than nonoverlapping targets. In five experiments, we demonstrated that collinear grouping on the salient distractor was the major cause of this impairment. Potential mechanisms of how a global structure interacts with perceptual salience are discussed. (PsycINFO Database Record (c) 2012 APA, all rights reserved).-
dc.languageengen_US
dc.publisherAmerican Psychological Association. The Journal's web site is located at http://www.apa.org/journals/xhp.html-
dc.relation.ispartofJournal of Experimental Psychology: Human Perception and Performanceen_US
dc.rightsJournal of Experimental Psychology: Human Perception and Performance. Copyright © American Psychological Association.-
dc.subjectCollinear-
dc.subjectSalience-
dc.subjectOrientation-
dc.subjectVisual search-
dc.subjectAttentional capture-
dc.titleCollinearity impairs local element visual searchen_US
dc.typeArticleen_US
dc.identifier.emailTseng, CH: tseng@hku.hken_US
dc.identifier.authorityTseng, C=rp00640en_US
dc.identifier.doi10.1037/a0027325-
dc.identifier.pmid22329767-
dc.identifier.hkuros209104en_US
dc.identifier.eissn1939-1277-
dc.identifier.isiWOS:000313934400014-
dc.publisher.placeUnited States-

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