Emotional face processing deficit in schizophrenia: A replication study in a South African Xhosa population

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dc.contributor.authorLeppanen J.M.
dc.contributor.authorNiehaus D.J.H.
dc.contributor.authorKoen L.
dc.contributor.authorDu Toit E.
dc.contributor.authorSchoeman R.
dc.contributor.authorEmsley R.
dc.date.accessioned2011-05-15T16:02:23Z
dc.date.available2011-05-15T16:02:23Z
dc.date.issued2006
dc.description.abstractSchizophrenia is associated with a deficit in the recognition of negative emotions from facial expressions. The present study examined the universality of this finding by studying facial expression recognition in African Xhosa population. Forty-four Xhosa patients with schizophrenia and forty healthy controls were tested with a computerized task requiring rapid perceptual discrimination of matched positive (i.e. happy), negative (i.e. angry), and neutral faces. Patients were equally accurate as controls in recognizing happy faces but showed a marked impairment in recognition of angry faces. The impairment was particularly pronounced for high-intensity (open-mouth) angry faces. Patients also exhibited more false happy and angry responses to neutral faces than controls. No correlation between level of education or illness duration and emotion recognition was found but the deficit in the recognition of negative emotions was more pronounced in familial compared to non-familial cases of schizophrenia. These findings suggest that the deficit in the recognition of negative facial expressions may constitute a universal neurocognitive marker of schizophrenia. © 2006 Elsevier B.V. All rights reserved.
dc.description.versionArticle
dc.identifier.citationSchizophrenia Research
dc.identifier.citation84
dc.identifier.citation03-Feb
dc.identifier.issn9209964
dc.identifier.other10.1016/j.schres.2006.02.007
dc.identifier.urihttp://hdl.handle.net/10019.1/12438
dc.subjectadult
dc.subjectarticle
dc.subjectcognitive defect
dc.subjectcontrolled study
dc.subjectcorrelation analysis
dc.subjectdisease duration
dc.subjectdisease marker
dc.subjecteducation
dc.subjectfacial expression
dc.subjectfemale
dc.subjecthuman
dc.subjecthuman experiment
dc.subjectmale
dc.subjectperceptive discrimination
dc.subjectpopulation research
dc.subjectpriority journal
dc.subjectrecognition
dc.subjectschizophrenia
dc.subjectSouth Africa
dc.subjecttask performance
dc.subjectAdult
dc.subjectAffect
dc.subjectCognition Disorders
dc.subjectDemography
dc.subjectEthnic Groups
dc.subjectFacial Expression
dc.subjectFemale
dc.subjectHumans
dc.subjectMale
dc.subjectPerceptual Disorders
dc.subjectRecognition (Psychology)
dc.subjectReproducibility of Results
dc.subjectSchizophrenia
dc.subjectSouth Africa
dc.subjectVisual Perception
dc.titleEmotional face processing deficit in schizophrenia: A replication study in a South African Xhosa population
dc.typeArticle
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