There is equivocal evidence for a relationship between neuroleptic-induced tardive dyskinesia and central nervous system (CNS) dysfunction. Using the Bender-Gestalt test as the dependent measure, we hypothesized that a group of chronic schizophrenic patients with tardive dyskinesia would show more perceptual dysfunction than those without. Our results supported this hypothesis. CNS dysfunction is discussed in terms of a possible predisposition to tardive dyskinesia.
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