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Japanese

“Jumping to Conclusions” Bias in Chronic Patients with Schizophrenia Syudo YAMASAKI 1,2,3 , Hiromi ARAKAWA 1 , Kai SEINO 4 , Shun-ichi FURUKAWA 2 , Kiyoto KASAI 5 , Nobumasa KATO 5 , Yoshihiko TANNO 1 1Graduate School of Arts and Sciences, Tokyo University 2Psychiatric Day Hospital, Rehabilitation Service, The University of Tokyo Hospital 3Japan Society for the Promotion of Science 4Adachi-ku Livelihood Support Center 5Department of Psychiatry, Graduate School of Medicine, The University of Tokyo Keyword: “Jumping to Conclusions” bias , Schizophrenia , Delusions , Data-gathering , Confidence pp.359-364
Published Date 2005/4/15
DOI https://doi.org/10.11477/mf.1405100042
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Summary

 In this study, “Jumping to Conclusions” bias in chronic patients with schizophrenic was investigated. This bias includes data-gathering bias and confidence bias.

 Chronic patients with schizophrenia gathered less data than normal subjects before making decisions, so they were biassed in this respect.

 However, it was found that these patients didn't immediately have a higher degree of confidence in their “conclusions” than normal subjects, so, in this respect, they had gathered sufficient data to reach a conclusion, the schizophrenic patients didn't experience an increase of confidence.


Copyright © 2005, 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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