Interhemispheric transfer of information and schizophrenia.
The interhemispheric transfer of stereognostic information was investigated in four groups of subjects: paranoid schizophrenics, non-paranoid schizophrenics, non-schizophrenic psychiatric patients, and normals. Previous work has raised the possibility that schizophrenia is characterised by a dysfunction of the corpus callosum, but there are several methodological problems associated with this research. A comparison of inter-manual and same-hand conditions on the experimental task revealed no evidence for impaired transfer of information in the schizophrenic groups. However, the performance of the non-paranoid schizophrenic group was markedly inferior to all other groups on the right hand/right hand no transfer condition, consistent with a left hemisphere dysfunction. Possible reasons for the failure to replicate previous findings are discussed.
Ditchfield
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H
Psychology Department, Institute of Psychiatry, University of London, England.
Hemsley
D R
DR
D000328:Adult; D004292:Dominance, Cerebral; D005260:Female; D007839:Functional Laterality; D006801:Humans; D008297:Male; D012153:Retention, Psychology; D012559:Schizophrenia / Q000175:diagnosis*; D012563:Schizophrenia, Paranoid / Q000523:psychology; D012565:Schizophrenic Psychology; D013236:Stereognosis; D014163:Transfer, Psychology