論文種別	原著(症例報告除く)
言語種別	英語
査読の有無	その他(不明)
表題	Jumping to conclusions and social behavior in individuals diagnosed with schizophrenia.
掲載誌名	正式名：Schizophrenia research. Cognition 略　 称：Schizophr Res Cogn ISSNコード：22150013/22150013
掲載区分	国外
巻・号・頁	45,pp.100434
著者・共著者	Ryota Hayashi, Yuichiro Takahama, Hiroyuki Inadomi, Ryouhei Ishii, Seiichi Watanabe, Kazuki Yoshida, Hiroki Okada, Masafumi Yoshimura
発行年月	2026/04
概要	The jumping to conclusions (JTC) bias-referring to the tendency to draw conclusions based on limited information-is a recognized cognitive trait in schizophrenia; however, its specific impact on real-world social behaviors remains under-explored. This study examined differences in social behavior and general functioning between individuals with schizophrenia with and without JTC bias and identified specific behavioral factors associated with JTC. We included 68 participants with schizophrenia (22 JTC and 46 Non-JTC) and 60 healthy controls who completed two variants (80:20 and 60:40) of the beads task. Participants were assessed on social behavior using the Social Behavior Schedule, global functioning using the modified Global Assessment of Functioning scale, and psychiatric symptoms using the Brief Psychiatric Rating Scale. Although the JTC group exhibited poorer clinical and functional scores, logistic regression analysis revealed that only SBS thought disturbances were significantly and independently associated with JTC bias in the 80:20 beads task. This association remained significant even after adjusting for psychiatric symptoms, education, and illness duration. Our results suggest that JTC bias is a distinct cognitive driver of social dysfunction in schizophrenia and is particularly linked to thought-related behavioral impairments. Targeting JTC through specialized interventions may provide a promising pathway for improving real-world social behavior and overall functioning in individuals with schizophrenia.
DOI	10.1016/j.scog.2026.100434
PMID	42004482