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dc.contributor.authorDibben, C.R.M.
dc.contributor.authorRice, C.
dc.contributor.authorLaws, K.R.
dc.contributor.authorMcKenna, P. J.
dc.date.accessioned2010-02-01T13:40:05Z
dc.date.available2010-02-01T13:40:05Z
dc.date.issued2009
dc.identifier.citationDibben , C R M , Rice , C , Laws , K R & McKenna , P J 2009 , ' Is executive impairment associated with schizophrenic syndromes? A meta-analysis ' , Psychological Medicine , vol. 39 , no. 3 , pp. 381-392 . https://doi.org/10.1017/S0033291708003887
dc.identifier.issn0033-2917
dc.identifier.otherPURE: 193286
dc.identifier.otherPURE UUID: 3727af8f-7686-419c-994c-09457d0882bb
dc.identifier.otherdspace: 2299/4205
dc.identifier.otherScopus: 66149166217
dc.identifier.urihttp://hdl.handle.net/2299/4205
dc.descriptionOriginal article can be found at: http://journals.cambridge.org/ Copyright Cambridge University Press. DOI: 10.1017/S0033291708003887
dc.description.abstractA key neuropsychological proposal in schizophrenia is that negative and disorganization symptoms are associated with different patterns of impairment on executive tasks. Reporting correlations between positive, negative or disorganization symptoms and any type of executive test were meta-analysed. The influence of moderating factors was also examined, including age, treatment and stage of illness and whether symptoms were relapsing or persistent. The magnitudes of the correlations were compared with those for general intellectual impairment. Pooled correlations between executive impairment and both negative symptoms and disorganization were significant in the small-to-moderate range. That for positive symptoms (‘reality distortion’), however, was close to zero. The pattern of correlations among different executive tests differed significantly for negative symptoms and disorganization. Patients with stable clinical pictures showed significantly higher correlations with executive impairment than those with relapsing and remitting illnesses. Both negative symptoms and disorganization also correlated significantly with general intellectual function as indexed by current IQ. Meta-analysis supports the view that negative symptoms and disorganization are associated with partially dissociable patterns of executive impairment. However, co-existent general intellectual impairment has been an important confounding factor in the studies to date.en
dc.language.isoeng
dc.relation.ispartofPsychological Medicine
dc.rightsOpen
dc.titleIs executive impairment associated with schizophrenic syndromes? A meta-analysisen
dc.contributor.institutionDepartment of Psychology
dc.description.statusPeer reviewed
dcterms.dateAccepted2009
rioxxterms.versionofrecordhttps://doi.org/10.1017/S0033291708003887
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue
herts.rights.accesstypeOpen


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