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2023 Fiscal Year Final Research Report

Clinical Utility of a Behavioral Task to Measure Metacognition in Patients with Traumatic Brain Injury

Research Project

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Project/Area Number 20K11178
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 59010:Rehabilitation science-related
Research InstitutionHokkaido University

Principal Investigator

Kazuki Yoshida  北海道大学, 保健科学研究院, 講師 (90638280)

Project Period (FY) 2020-04-01 – 2024-03-31
Keywordsメタ認知 / 外傷性脳損傷 / 自己認識 / 認知機能障害 / MRI
Outline of Final Research Achievements

This study revealed that (1) patients after traumatic brain injury (TBI) were less metacognitive efficiency than healthy controls, (2) patients after TBI tend to be over confident compared to healthy controls, (3) metacognitive efficiency was related to clinical self-awareness ratings but not to other neuropsychological tests, and (4) lower metacognitive ability was associated with left frontal brain injury. These results contribute to our understanding of the pathology of metacognitive deficits in patients after TBI. Correlations with clinical self-awareness ratings also suggested the clinical utility of behavioral metacognitive measures.

Free Research Field

認知神経科学

Academic Significance and Societal Importance of the Research Achievements

メタ認知機能の低下は自身の行動や認知の客観的な評価の不正確さにつながり、適応的行動に必要だと考えられている。外傷性脳損傷患者の不適切な行動や認知はメタ認知能力の低下と関連している可能性がある。本研究では外傷性脳損傷患者はメタ認知機能の低下を示すこと、患者の自己評価は自信過剰な方向に偏っていること、メタ認知能力は臨床的な自己認識評価と相関するが神経心理学的検査とは相関しないこと、左前頭部の損傷がメタ認知能力低下と関連しうることなど、病態理解に貢献する複数の知見を得た。これらは患者のより適切な評価やメタ認知を対象とした新たな介入手法の開発につながる可能性がある。

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Published: 2025-01-30  

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