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The Journal of Neuropsychiatry and Clinical Neurosciences, VOL. 4, No. 4

Article | November 01, 1992

Visual perceptual dysfunction in patients with schizophrenic and affective disorders versus control subjects

The Journal of Neuropsychiatry and Clinical Neurosciences 1992;4:422-427.

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Abstract

Visual perception was evaluated with standard tests for 26 hospitalized patients with schizophrenia, 23 hospitalized patients with affective disorders, and 60 control subjects. Both patient groups differed significantly from the control group on low amplitude of accommodation, esophoria or exophoria, vergence duction suppression, and convergence and divergence recovery ductions. Only the affective group showed significantly reduced fusion at near distance, and only the schizophrenic group differed significantly from control subjects on disorganized left apex formation. These findings appear to confirm the presence of visual perceptual disorders that can cause disability in psychiatric patients, with important research and rehabilitation implications.

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