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Article
January 1987

Comparative Studies of Thought DisordersII. Schizoaffective Disorder

Author Affiliations

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

Arch Gen Psychiatry. 1987;44(1):21-30. doi:10.1001/archpsyc.1987.01800130023004
Abstract

• We examined thought disorder in 22 patients with schizoaffective disorder (12 schizoaffective-manic and ten schizoaffective-depressed) using Research Diagnostic Criteria. The Thought Disorder Index was used to tag 22 categories of thought disorder that ranged from mild to severe. Qualitative patterns in the thought disorder of schizoaffective patients were compared with those of 20 manic and 43 schizophrenic patients. Manic and schizoaffective-manic patients produced a high number of combinatory responses, but those produced by the schizoaffective-manic patients lacked the humor and playfulness of those of the manics. The schizoaffective-manic patients, like the schizophrenic patients, produced a high number of responses in the categories of idiosyncratic verbalizations, autistic thinking, and confusion. Unlike the manic patients, schizoaffective-depressed patients generally produced a few absurd and idiosyncratic responses in a setting of constricted output. The data strongly suggest that the thinking disorders of schizoaffective patients are like those of the schizophrenic patients.

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