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Is lateral bias anomalous in early-onset schizophrenia? Selected comparisons with normal populations

Collinson, Dr SL and Phillips, Dr TJ and James, Dr AC and Quested, Dr DJ and Crow, Dr TJ (2004) Is lateral bias anomalous in early-onset schizophrenia? Selected comparisons with normal populations. [Journal (Paginated)]

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Abstract

The aim of this study was to investigate lateral bias in patients with early-onset schizophrenia. Hand, eye, and foot preferences and relative hand skill were examined in early-onset patients (n=44) and matched controls (n=39), and were compared with population estimates. Patients demonstrated a significant excess in mixed handedness (20.5% vs. 8.5%) relative to population estimates and reduced relative hand skill on a pegboard task compared with controls. Left eye preference was significantly less common in schizophrenic patients relative to population estimates. Crossed eye-hand and eye-foot preferences were not significantly increased in the patient group as a whole but were present, respectively, in four of nine and five of nine mixed-handed patients but in none of five mixed-handed controls. These findings are consistent with the view that lateralisation is anomalous in schizophrenia early in the course of illness.

Item Type:Journal (Paginated)
Keywords:Laterality; Schizophrenia; Handedness; Eye preference; Foot preference
Subjects:Neuroscience > Computational Neuroscience
ID Code:4033
Deposited By:Crow, Prof Tim
Deposited On:12 Jan 2005
Last Modified:12 Sep 2007 17:55

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