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On Bizarre Behaviour in Schizophrenia Kotaro OTSUNA 1 1Department of Neuropsychiatry, Iwate Medical University Keyword: Bizarre behavior , Bizarre thinking , Schizophrenia , BPRS , SAPS pp.715-725
Published Date 2001/7/15
DOI https://doi.org/10.11477/mf.1405905070
  • Abstract
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 The characteristics of a group of schizophrenics presenting obvious “bizarre behavior” (the bizarre behavior group) were investigated. These patients developed, at a relatively young age, a condition that tended to be severe, and their prognosis was poor, suggesting that the schizophrenia observed in this group of patients was close to the type called “intractable schizophrenia”. The members of this group also showed diverse behavioral symptoms, including positive and negative symptoms and psychomotor agitation. Negative symptoms seem to be of relatively small importance in this type of schizophrenia, which is characterized by severe first-rank symptoms and bizarre thinking. Furthermore, the severe condition of the patients, their disintegrated thinking and the bizarre thinking exhibited by their bizarre behavior were strongly expressd in the sub-types. i.e., paranoid, hebephrenic, and residual. The structure of their symptoms resembles that described by the five-factor model (a characterization of schizophrenia in general) and the central concepts of Kraepelin and Bleuler, suggesting that this type of schizophrenia includes the core components of the historically established concepts of schizophrenia.


Copyright © 2001, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-126X 印刷版ISSN 0488-1281 医学書院

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