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  • Title: Use of advance information in patients with schizophrenia.
    Author: Williams SB, Phillips JG, Bellgrove ML, Bradshaw JL, Bradshaw JA, Pantelis C.
    Journal: J Clin Exp Neuropsychol; 2000 Aug; 22(4):472-82. PubMed ID: 10923057.
    Abstract:
    To document possible motor disturbance in schizophrenia, we examined the ability to use advance information (or cues) to plan movements in a sequential button pressing task in 12 Clozapine medicated patients. Programming of movements under various cues revealed that patients with schizophrenia, relative to controls, initiated movements slower to the right than left, providing possible evidence for right hemineglect (left hemisphere dysfunction). Additionally, patients with schizophrenia had difficulty in the initiation of movements in the absence of a cue, suggesting internal cue generation difficulty for movement related to some form of fronto-striatal disturbance. Motor abnormalities were predominantly observed at the level of movement initiation, but not execution, contrary to basal ganglia disorders such as Parkinson's and Huntington's disease.
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