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Conference Paper: A study of perceptual binding in schizophrenia

TitleA study of perceptual binding in schizophrenia
Authors
Issue Date2001
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/schres
Citation
Schizophrenia Research, v. 49 n. 2 suppl., p. 131 How to Cite?
AbstractRecent neuroimaging evidence suggests that schizophrenia may involve dysfunction in cooperative activities between brain areas. One potential mechanism for coordination is the phenomenon of neural synchronisation. Cognitively, such coordination is reflected in perceptual binding. We used a contour integration test to investigate if perceptual binding dysfunction occurs in schizophrenia. Twenty-eight DSM-IV diagnosed chronic schizophrenic patients were compared with normal controls. They were requested to identify contours comprised of Gabor elements separated from one another with a constant density. The amount of misalignment in orientation was manipulated so that the more misalignment the more difficult the task. Stimuli were presented either in a completely randomised order or in increasing levels of difficulty. Patients' performances were below those of control subjects when stimuli were presented sequentially. However, in random presentation, patients' performance was similar to controls. We conclude that schizophrenic patients do not show evidence for perceptual binding impairment. In addition, they benefit less from prior exposure to the easier items compared with controls.
DescriptionThis journal suppl. contain Abstracts of the ICOSR
Persistent Identifierhttp://hdl.handle.net/10722/105332
ISSN
2015 Impact Factor: 4.453
2015 SCImago Journal Rankings: 2.304

 

DC FieldValueLanguage
dc.contributor.authorChen, EYHen_HK
dc.date.accessioned2010-09-25T22:29:45Z-
dc.date.available2010-09-25T22:29:45Z-
dc.date.issued2001en_HK
dc.identifier.citationSchizophrenia Research, v. 49 n. 2 suppl., p. 131en_HK
dc.identifier.issn0920-9964en_HK
dc.identifier.urihttp://hdl.handle.net/10722/105332-
dc.descriptionThis journal suppl. contain Abstracts of the ICOSR-
dc.description.abstractRecent neuroimaging evidence suggests that schizophrenia may involve dysfunction in cooperative activities between brain areas. One potential mechanism for coordination is the phenomenon of neural synchronisation. Cognitively, such coordination is reflected in perceptual binding. We used a contour integration test to investigate if perceptual binding dysfunction occurs in schizophrenia. Twenty-eight DSM-IV diagnosed chronic schizophrenic patients were compared with normal controls. They were requested to identify contours comprised of Gabor elements separated from one another with a constant density. The amount of misalignment in orientation was manipulated so that the more misalignment the more difficult the task. Stimuli were presented either in a completely randomised order or in increasing levels of difficulty. Patients' performances were below those of control subjects when stimuli were presented sequentially. However, in random presentation, patients' performance was similar to controls. We conclude that schizophrenic patients do not show evidence for perceptual binding impairment. In addition, they benefit less from prior exposure to the easier items compared with controls.-
dc.languageengen_HK
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/schresen_HK
dc.relation.ispartofSchizophrenia Researchen_HK
dc.rightsSchizophrenia Research. Copyright © Elsevier BV.en_HK
dc.titleA study of perceptual binding in schizophreniaen_HK
dc.typeConference_Paperen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0920-9964&volume=49 &issue=Supplement&spage=131&epage=&date=2001&atitle=A+study+of+perceptual+binding+in+schizophreniaen_HK
dc.identifier.emailChen, EYH: eyhchen@hku.hken_HK
dc.identifier.hkuros61783en_HK
dc.identifier.volume49en_HK
dc.identifier.issue2 suppl.en_HK
dc.identifier.spage131en_HK

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