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  • Title: Lateralized visual-field inattention in schizophrenia.
    Author: Lobel DS, Swanda RM, Losonczy MF.
    Journal: Percept Mot Skills; 1994 Aug; 79(1 Pt 2):699-702. PubMed ID: 7808913.
    Abstract:
    Numerous studies have shown impaired verbal functioning in schizophrenic patients as compared with normals. The verbal deficits are generally attributed to damage of the left cerebral hemisphere. This attribution is based on literature which suggests that verbal processing is primarily mediated by the left hemisphere in right-handed humans. This study explored left-hemispheric integrity directly by assessing sustained attention in both the left and right hemispheres of 40 schizophrenic patients with the Weintraub Cancellation Tasks. Patients made significantly more errors of omission on the right visual field than on the left. These results are consistent with cognitive research in schizophrenia by demonstrating selective left-hemispheric impairment relative to right-hemispheric functioning.
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