機能的神経障害におけるメカニズムと脆弱性
Eleonora Prudente1, Valentine Savioz1, Cristina Concetti1
1Department of Neurosciences, Faculty of Science and Medicine, University of Fribourg, Fribourg, Switzerland.
Seminars in neurology
|January 7, 2026
まとめ
機能的神経障害(FND)は、構造的損傷ではなく、脳ネットワークの機能不全を伴う。FNDの理解には、より良い治療のために神経生物学的、環境的、心理的要因の統合が必要である。
科学分野:
- 神経科学
- 精神医学
- 心理学
背景:
- 機能的神経障害(FND)は、運動、感覚、認知機能の変化を伴う、障害をもたらす神経精神医学的状態である。
- FNDの病態生理は、構造的損傷ではなく、脳ネットワーク(エージェンシー、注意、感情、感覚運動、内受容)の機能不全を伴う。
- 先行信念が感覚入力を上回る予測符号化の変化は、FNDの症状生成に寄与する。
研究 の 目的:
- FNDの根底にある複雑なメカニズムに関する最近の研究を統合すること。
- FNDにおける神経生物学的、環境的、心理的要因を統合すること。
- FNDの病態生理の理解を深め、包括的な概念的枠組みを促進すること。
主な方法:
- 機能的神経障害に関する最近の科学文献のレビュー。
- 神経生物学的、環境的、心理学的研究結果の統合。
- FNDにおける予測符号化と脳ネットワークの機能不全に関連する証拠の統合。
主要な成果:
- FNDは構造的損傷ではなく、機能的な脳ネットワークの変化を特徴とする。
- 幼少期のトラウマ、遺伝的/エピジェネティックな脆弱性、精神医学的併存疾患は、FNDに大きく影響する。
- 予測符号化メカニズムは、FNDの症状生成に関与している。
結論:
- FNDの包括的な理解には、神経生物学的、環境的、心理的要因の統合が必要である。
- 個人の脆弱性は、FNDの発症と提示において重要な役割を果たす。
- これらの要因を統合するさらなる研究は、FNDの病態生理の理解と臨床的アプローチを進歩させるだろう。
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