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Article: Sensitivity to attachment, alignment, and contrast polarity variation in local perceptual grouping

TitleSensitivity to attachment, alignment, and contrast polarity variation in local perceptual grouping
Authors
Issue Date2009
PublisherPsychonomic Society, Inc. The Journal's web site is located at http://www.psychonomic.org/PP/
Citation
Attention, Perception, And Psychophysics, 2009, v. 71 n. 7, p. 1534-1552 How to Cite?
AbstractA number of leading theories (e.g., Grossberg & Mingolla, 1985; Kellman & Shipley, 1991 ; Rensink & Enns, 1995) commonly assume that perceptual grouping by contour alignment occurs preattentively across reversing contrast polarity elements. We examined this notion in seven visual search experiments. We found that only grouping by attachment supported preattentive visual search and that grouping by contour alignment required attention in order to operate. Both attachment grouping and grouping by contour alignment were sensitive to contrast reversals. Further results showed that contour alignment was a strong grouping cue only among elements with the same contrast sign but that it did not facilitate grouping across reversing contrast. These results suggest that grouping by contour alignment operates only on inputs of consistent contrast polarity. © 2009 The Psychonomic Society, Inc.
Persistent Identifierhttp://hdl.handle.net/10722/169076
ISSN
2015 Impact Factor: 1.782
2015 SCImago Journal Rankings: 1.366
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorChan, LKHen_US
dc.contributor.authorHayward, WGen_US
dc.date.accessioned2012-10-08T03:41:30Z-
dc.date.available2012-10-08T03:41:30Z-
dc.date.issued2009en_US
dc.identifier.citationAttention, Perception, And Psychophysics, 2009, v. 71 n. 7, p. 1534-1552en_US
dc.identifier.issn1943-3921en_US
dc.identifier.urihttp://hdl.handle.net/10722/169076-
dc.description.abstractA number of leading theories (e.g., Grossberg & Mingolla, 1985; Kellman & Shipley, 1991 ; Rensink & Enns, 1995) commonly assume that perceptual grouping by contour alignment occurs preattentively across reversing contrast polarity elements. We examined this notion in seven visual search experiments. We found that only grouping by attachment supported preattentive visual search and that grouping by contour alignment required attention in order to operate. Both attachment grouping and grouping by contour alignment were sensitive to contrast reversals. Further results showed that contour alignment was a strong grouping cue only among elements with the same contrast sign but that it did not facilitate grouping across reversing contrast. These results suggest that grouping by contour alignment operates only on inputs of consistent contrast polarity. © 2009 The Psychonomic Society, Inc.en_US
dc.languageengen_US
dc.publisherPsychonomic Society, Inc. The Journal's web site is located at http://www.psychonomic.org/PP/en_US
dc.relation.ispartofAttention, Perception, and Psychophysicsen_US
dc.titleSensitivity to attachment, alignment, and contrast polarity variation in local perceptual groupingen_US
dc.typeArticleen_US
dc.identifier.emailChan, LKH:clouis@graduate.hku.hken_US
dc.identifier.emailHayward, WG:whayward@hkucc.hku.hken_US
dc.identifier.authorityChan, LKH=rp00851en_US
dc.identifier.authorityHayward, WG=rp00630en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.3758/APP.71.7.1534en_US
dc.identifier.pmid19801614-
dc.identifier.scopuseid_2-s2.0-73449097177en_US
dc.identifier.hkuros171165-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-73449097177&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume71en_US
dc.identifier.issue7en_US
dc.identifier.spage1534en_US
dc.identifier.epage1552en_US
dc.identifier.isiWOS:000270932900010-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridChan, LKH=37039134300en_US
dc.identifier.scopusauthoridHayward, WG=7006352956en_US

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