title: Is there atypical handedness in schizophrenia?
abstract: Ninety-three schizophrenic patients and 105 normal controls were tested in a single session on an 8-item repeat-administration handedness test. The schizophrenic group, in contrast to the normal controls, showed a shift in the distribution away from right-handedness, which was due to an increase in the proportion of mixed-handers. Additional analyses revealed that the increase in mixed-handedness was largely due to an increase of within-item variability in the schizophrenic group, which we refer to as ambiguous handedness. Nearly 20% of the schizophrenic patients were inconsistent on 3 or more items compared with 3.8% of the normal controls. This increased incidence of atypical handedness is discussed within the context of disorders of attention and neurodevelopment.
authors.forename: M F
authors.initials: MF
authors.lastname: Green
authors.forename: P
authors.initials: P
authors.lastname: Satz
authors.forename: C
authors.initials: C
authors.lastname: Smith
authors.forename: L
authors.initials: L
authors.lastname: Nelson
mesh_terms: D000328:Adult; D005260:Female; D007839:Functional Laterality; D006801:Humans; D008297:Male; D019965:Neurocognitive Disorders / Q000523:psychology*; D012307:Risk Factors; D012565:Schizophrenic Psychology