Relationship between cognitive insight and attenuated delusional symptoms in individuals with at-risk mental state

Tomohiro Uchida, Kazunori Matsumoto, Fumiaki Ito, Noriyuki Ohmuro, Tetsuo Miyakoshi, Takashi Ueno, Hiroo Matsuoka

研究成果: Article査読

15 被引用数 (Scopus)

抄録

Cognitive insight, defined as the ability to evaluate and correct one[U+05F3]s own distorted beliefs and misinterpretations, is hypothesized to contribute to the development of psychotic symptoms. We investigated cognitive insight in individuals with at-risk mental state (ARMS), which is associated with a clinically high risk of psychosis. Sixty individuals with ARMS were compared with 200 healthy controls in terms of cognitive insight measured using the Beck Cognitive Insight Scale. We also investigated the relationship between cognitive insight and attenuated delusional symptoms. In addition, we examined differences in the cognitive insight of individuals with ARMS with or without near-threshold delusional symptoms and differences in the cognitive insight of individuals with ARMS with or without later transition to psychosis. The results showed that individuals with ARMS exhibited higher self-certainty than healthy controls, indicating impairments in cognitive insight in the former. More importantly, our results revealed that self-certainty was correlated with attenuated delusional symptoms and that individuals with ARMS who had near threshold delusional symptoms had higher self-certainty. These findings indicate that overconfidence in one[U+05F3]s own beliefs or judgments might be related to the formation and maintenance of attenuated delusions in individuals with ARMS.

本文言語English
ページ(範囲)20-24
ページ数5
ジャーナルPsychiatry Research
217
1-2
DOI
出版ステータスPublished - 2014 6 30

ASJC Scopus subject areas

  • 精神医学および精神衛生
  • 生物学的精神医学

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