Investigating graphesthesia task performance in the biological relatives of schizophrenia patients.
This study compared the performance of 39 biological relatives of persons with schizophrenia to that of 30 normal adult controls on graphesthesia processing, a complex somatosensory processing task. The relatives performed significantly worse on the graphesthesia task compared to the healthy controls. The relatives and control subjects, however, did not differ on two neurocognitive control tasks. These data are interpreted within the context of a somatosensory deficit linked to schizophrenia liability.
Department of Psychology, Harvard University, Cambridge, MA, USA.
Bernard P
BP
Chang
Mark F
MF
Lenzenweger
D000328:Adult; D039721:Diagnostic and Statistical Manual of Mental Disorders; D005260:Female; D006801:Humans; D008297:Male; D011596:Psychomotor Disorders / Q000175:diagnosis* / Q000453:epidemiology / Q000209:etiology*; D011618:Psychotic Disorders / Q000175:diagnosis / Q000453:epidemiology; D012559:Schizophrenia / Q000150:complications / Q000175:diagnosis / Q000235:genetics; D012569:Schizotypal Personality Disorder / Q000175:diagnosis / Q000453:epidemiology; D012720:Severity of Illness Index; D011795:Surveys and Questionnaires