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An Examination of Conceptual Style

Nancy J. C. Andreasen, MD, PhD; Pauline S. Powers, MD

Arch Gen Psychiatry. 1975;32(1):70-73.

Abstract
The performance of creative writers on the Goldstein-Sheerer Object-Sorting Test was compared with that of admitted manic and schizophrenic patients. Writers and manics tended to show more behavioral and conceptual overinclusion, but the writers showed substantially more richness and the manics more idiosyncratic thinking. Schizophrenics tended to be underinclusive rather than overinclusive and showed less richness and bizarreness than the writers and manics.

These data imply that the conceptual style of writers may resemble mania more than schizophrenia and that, if overinclusiveness is an index of thought disorder, manics may have a more florid thought disorder than schizophrenics.

Author Affiliations
From the Department of Psychiatry, University of Iowa College of Medicine, Iowa City.

Footnotes
Accepted for publication July 17, 1974.

Reprint requests to the Department of Psychiatry, University of Iowa College of Medicine, 500 Newton Rd, Iowa City, IA 52242 (Dr. Andreasen).

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