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Article
January 1987

Comparative Studies of Thought DisordersI. Mania and Schizophrenia

Author Affiliations

From the Department of Psychology, Harvard University, Cambridge, Mass; and the Mailman Research Center, McLean Hospital, Belmont, Mass. Dr Solovay is now with the Department of Psychiatry, New York University Medical Center, New York. Dr Shenton is now with the Department of Psychiatry, Harvard Medical School, Boston.

Arch Gen Psychiatry. 1987;44(1):13-20. doi:10.1001/archpsyc.1987.01800130015003
Abstract

• Thought disorder in 20 manic and 43 schizophrenic patients was examined using the Thought Disorder Index. To ensure the inclusion of patients with unambiguous mania and schizophrenia, the patients met Research Diagnostic Criteria, DSM-III criteria, and Washington University (St Louis) criteria. While the quantity of thought disorder did not differ significantly between the two groups, there were distinct qualitative differences. The thought disorder of manic patients was extravagantly combinatory, usually with humor, flippancy, and playfulness. The thought disorder of schizophrenic patients appeared disorganized, confused, and ideationally fluid, with many peculiar words and phrases.

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