原因構造コヴァリアンスネットワーク分析による持続的な聴覚幻覚を持つ統合失調症患者の漸進的な灰色質減少
Xu Shao1,2, Honghong Ren3, Lulin Dai1
1Department of Psychiatry, Zhejiang University School of Medicine, Sir Run Run Shaw Hospital, Zhejiang, China.
Psychological medicine
|August 29, 2025
まとめ
聴覚の幻覚を伴う統合失調症は 灰色の物質が 徐々に失われていて 発端はタラムスにある この研究は 原因ネットワークをマッピングし 持続的な聴覚幻覚における 胸膜-皮質-小脳機能障害を明らかにします
科学分野:
- 神経イメージング
- 精神科
- システム神経科学
背景:
- 聴覚幻覚を持つ統合失調症患者は 明確な形態的異常を示します
- この集団における漸進的な灰色質縮パターンと因果的影響伝播は不明である.
- この研究は,持続的な聴覚幻覚を持つ統合失調症患者の因果構造的共変性ネットワークを構築することを目的とした.
研究 の 目的:
- 持続的な聴覚幻覚 (pAH) を有する統合失調症患者における因果構造的共変性ネットワーク (CaSCN) を構築する.
- 灰色の質量 (GMV) の変化の因果的な影響と伝播パターンをマッピングする.
- GMVの縮と聴覚幻覚の重度の関係を調査する.
主な方法:
- 統合失調症の患者90人と健康な対照群 (HC) のT1加重型MRI画像を取得した.
- グループ間のGMVを比較し,アトロフィ的パターンと起源を特定するために,ステージ固有の独立したtテストを使用した.
- 幻覚の重症度が増加するにつれて,アトロフィ的起源から因果的影響をマッピングするpAH群のCaSCNを構成した.
主要な成果:
- GMVの減少はタラムス,中央前頭回転,ロランディック・オペルキュラム,およびカルカリンで始まり,幻覚の重症度が増加する他の脳領域に広がります.
- タラムスはCaSCNにおける因果源として特定された.
- トランジションノード (例えば下部前頭回,中部後頭回) は,小脳を含む皮質および皮質下部のターゲットノードに因果情報を投影した.
結論:
- 持続的な聴覚幻覚による統合失調症の 原因はタラムスから発生します
- タラミック・コルティカル・セレベラー回路内の因果的な情報の特定の伝達パターンが明らかになった.
- 精神分裂症の聴覚幻覚に関連した 胸膜-皮質-小脳回路の機能障害を示しています
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