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Article: Viewpoint dependence and object discriminability

TitleViewpoint dependence and object discriminability
Authors
Issue Date2000
PublisherBlackwell Publishing Ltd. The Journal's web site is located at http://www.blackwellpublishing.com/journals/PSCI
Citation
Psychological Science, 2000, v. 11 n. 1, p. 7-12 How to Cite?
AbstractIn an attempt to reconcile results of previous studies, several theorists have suggested that object recognition performance should range from viewpoint invariant to highly viewpoint dependent depending on how easy it is to differentiate the objects in a given recognition situation. The present study assessed recognition across depth rotations of a single general class of novel objects in three contexts that varied in difficulty. In an initial experiment, recognition in the context involving the most discriminable object differences was viewpoint invariant, but recognition in the least discriminable context and recognition in the intermediate context were equally viewpoint dependent. In a second experiment, utilizing gray-scale versions of the same stimuli, almost identical viewpoint-cost functions were obtained in all three contexts. These results suggest that differences in the geometry of stimulus objects, rather than task difficulty, lie at the heart of previously discrepant findings.
Persistent Identifierhttp://hdl.handle.net/10722/168935
ISSN
2015 Impact Factor: 5.476
2015 SCImago Journal Rankings: 4.375
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorHayward, WGen_US
dc.contributor.authorWilliams, Pen_US
dc.date.accessioned2012-10-08T03:39:51Z-
dc.date.available2012-10-08T03:39:51Z-
dc.date.issued2000en_US
dc.identifier.citationPsychological Science, 2000, v. 11 n. 1, p. 7-12en_US
dc.identifier.issn0956-7976en_US
dc.identifier.urihttp://hdl.handle.net/10722/168935-
dc.description.abstractIn an attempt to reconcile results of previous studies, several theorists have suggested that object recognition performance should range from viewpoint invariant to highly viewpoint dependent depending on how easy it is to differentiate the objects in a given recognition situation. The present study assessed recognition across depth rotations of a single general class of novel objects in three contexts that varied in difficulty. In an initial experiment, recognition in the context involving the most discriminable object differences was viewpoint invariant, but recognition in the least discriminable context and recognition in the intermediate context were equally viewpoint dependent. In a second experiment, utilizing gray-scale versions of the same stimuli, almost identical viewpoint-cost functions were obtained in all three contexts. These results suggest that differences in the geometry of stimulus objects, rather than task difficulty, lie at the heart of previously discrepant findings.en_US
dc.languageengen_US
dc.publisherBlackwell Publishing Ltd. The Journal's web site is located at http://www.blackwellpublishing.com/journals/PSCIen_US
dc.relation.ispartofPsychological Scienceen_US
dc.titleViewpoint dependence and object discriminabilityen_US
dc.typeArticleen_US
dc.identifier.emailHayward, WG:whayward@hkucc.hku.hken_US
dc.identifier.authorityHayward, WG=rp00630en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1111/1467-9280.00207-
dc.identifier.pmid11228847-
dc.identifier.scopuseid_2-s2.0-0033754552en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0033754552&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume11en_US
dc.identifier.issue1en_US
dc.identifier.spage7en_US
dc.identifier.epage12en_US
dc.identifier.isiWOS:000085770300002-
dc.publisher.placeUnited Kingdomen_US
dc.identifier.scopusauthoridHayward, WG=7006352956en_US
dc.identifier.scopusauthoridWilliams, P=37019499100en_US

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