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統合失調症における適応機能:陰性症状を超えた行動的実行機能
Javier Pérez-Flores1, Antonieta Nieto1, Elena García-Cerdeña1
1Department of Psychobiology, Clinical Psychology, and Methodology, School of Psychology, Universidad de La Laguna, Tenerife, Spain.
Applied neuropsychology. Adult
|February 23, 2026
まとめ
実行機能(EF)の行動的評価は、統合失調症における適応機能に関して、陰性症状を超えた価値ある洞察を提供する。これらの評価は、残遺期統合失調症患者に対して、臨床的に意味のある、冗長でない情報を提供する。
科学分野:
- 神経科学
- 精神医学
- 臨床心理学
背景:
- 陰性症状は統合失調症における適応機能の主要な予測因子である。
- 実行機能(EF)は適応機能に影響を与えるが、異なる自己調整プロセスを捉える可能性がある。
- 以前の研究では、構造化された設定でのパフォーマンスベースの実行機能指標が主に用いられていた。
研究 の 目的:
- 残遺期統合失調症成人における陰性症状を超えた適応機能の説明的価値について、行動的実行機能評価が追加的な価値を提供するかどうかを調査すること。
- 情報提供者による実行機能評価の適応機能への付加的な貢献を評価すること。
- 統合失調症研究における行動的実行機能指標の臨床的有用性を判断すること。
主な方法:
- 残遺期統合失調症の外来患者40名を評価した。
- 適応機能は生活技能プロフィール(LSP-39)で測定した。
- 陰性症状と行動的実行機能は、それぞれ陰性症状評価尺度(SANS)と実行機能障害質問票(DEX)で評価した。
- 階層的回帰モデルに、パーミュテーション検定とブートストラップ信頼区間を用いた。
主要な成果:
- 行動的実行機能評価(DEX)は、全体的な適応機能およびそのすべての領域と強く関連していた。
- 陰性症状(SANS)も機能と関連していたが、一般的に関連は小さかった。
- 階層モデルでは、DEXスコアが陰性症状を超えて適応機能における有意な追加分散を説明し、陰性症状よりも大きな標準化係数を示した。
結論:
- 行動的実行機能評価は、統合失調症における適応機能に関する独自かつ臨床的に重要な情報を提供する。
- 情報提供者による実行機能指標は、残遺期統合失調症患者において、陰性症状を超えた冗長でない洞察を提供する。
- これらの発見は、統合失調症における適応機能の理解と潜在的な改善のための行動的実行機能評価の使用を支持する。
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