統合失調症,双極性障害,一級親族における社会的認知障害:大規模なマルチタスク調査
Scott D Blain1, Jerillyn S Kent2, Chloe A Peyromaure de Bord2
1The Ohio State University Department of Psychiatry and Behavioral Health, USA; University of Michigan Department of Psychiatry, USA.
Psychiatry research
|August 24, 2025
まとめ
社会的認知欠陥は統合失調症 (SZ) と双極性障害 (BD) で存在し,遺伝的責任でスケーリングされます. これらの障害は,特にメンタライゼーションにおいて,精神障害に対する領域特有の脆弱性を示唆しています.
科学分野:
- 神経科学
- 精神科
- 遺伝学
背景:
- 社会認知障害は統合失調症 (SZ) と双極性障害 (BD) で一般的です.
- これらの欠陥は 一級親戚に見られ 遺伝的要素が示唆されています
- 以前の研究は,少数のサンプルと単一のタスクによる評価によって制限されていました.
研究 の 目的:
- SZ,BD,その一級親戚,そして健康な対照群の社会的認知を調査する.
- 感情の認識と 思考能力の違いを調べる
- 社会的認知と症状の重度の関係を探る
主な方法:
- SZ (n=105),BD (n=37),親族 (n=101),HC (n=53) での社会的認知を,感情認識 (ER-40,PROID) とメンタライゼーション (Triangles,SAT-MC) という4つのタスクを使って比較した.
- 社会的認知因子を導き出すためにベイジアン確認因子分析を用いた.
- ポジティブ/ネガティブな症状の評価スケール (SAPS/SANS) を用いて症状の重さとの相関を評価した.
主要な成果:
- 社会的認知において重要なグループ差が認められた (F = 18. 10, p < . 001),HCは最高,SZは最悪であった.
- BDと親戚は中間の赤字を示し,HCとSZと比較して有意な差があった.
- メンタライズタスクは 感情認識タスクよりも 集団の違いが大きいことが分かり 社会的な認知は 患者の症状の重さと 否定的に相関していました
結論:
- 社会的認知欠陥は精神病の遺伝的責任と関連しており,SZでは最も重症で,BDでは中位である.
- 欠陥は感情認識よりも メンタライジングで顕著であり 領域特有の脆弱性を示しています
- 社会認知は精神障害のエンドフェノタイプとして機能し,早期の識別と介入を助けます.
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