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

2013 Fiscal Year Final Research Report

• Project/Area Number: 24730567
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Clinical psychology
• Research Institution: Tohoku University
• Principal Investigator: UCHIDA Tomohiro 東北大学, 医学(系)研究科(研究院), 助手 (30626875)
• Project Period (FY): 2012-04-01 – 2014-03-31
• Keywords: 統合失調症 / ARMS / 認知的洞察

Research Abstract

Cognitive insight, defined as the ability to evaluate and correct one'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. We also investigated the relationship between cognitive insight and attenuated delusional symptoms. 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. These findings indicate that overconfidence in one's own beliefs or judgments might be related to the formation and maintenance of attenuated delusions in individuals with ARMS.

Research Products

• [Journal Article] Relationship between cognitive insight and attenuated delusional symptoms in individuals with at-risk mental state (2014)
  • Author(s): Uchida T, Matsumoto K, Ito F, et al
  • Journal Title: Psychiatry Research Volume: 217 Pages: 20-24
  • DOI: 10.1016/j.psychres.2014.01.003
  • Peer Reviewed
• [Presentation] At-Risk Mental Stateにおける認知機能障害と認知的洞察との関連 (2012)
  • Author(s): 内田知宏, 松本和紀, 大室則幸, 桂雅宏, 濱家由美子, 砂川恵美, 前澤裕子, 石井優, 上埜高志, 松岡洋夫
  • Organizer: 第16回日本精神保健・予防学会学術集会
  • Place of Presentation: 笹川記念会館(東京)
  • Year and Date: 20121215-16
• [Presentation] Association of deficits in theory of mind and functioning in at-risk mental states and first-episode psychosis (2012)
  • Author(s): Ohmuro N, Matsumoto K, Katsura M, Sakuma A, Iizuka K, Kikuchi T, Obara C, Hamaie Y, Uchida T, Sunakawa E, Ito F, Matsuoka H
  • Organizer: The 8th International Conference on Early Psychosis : From Neurobiology to Public Policy
  • Place of Presentation: San Francisco, USA
  • Year and Date: 20121011-13
• [Presentation] Negative schemata and positive symptoms in ARMS : Comparison with FEP using the brief Core Shema Scales (2012)
  • Author(s): Katsura M, Matsumoto K, Uchida T, Ohmuro N, Kikuchi T, Obara C, Hamaie Y, Sunakawa E, Matsuoka H
  • Organizer: The 8th International Conference on Early Psychosis : From Neurobiology to Public Policy
  • Place of Presentation: San Francisco, USA
  • Year and Date: 20121011-13
• [Presentation] Cognitive insight and attenuated positive symptoms in At-Risk Mental State (2012)
  • Author(s): Uchida T, Omuro N, Katsura M, Hamaie Y, Sunakawa E, Matsumoto K, Matsuoka H
  • Organizer: The 3th Schizophrenia International Research Society Conference
  • Place of Presentation: Florence, Italy
  • Year and Date: 20120414-18