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Updated: Feb 15, 2026

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鏡箱による所有権の放棄が皮質運動刺激性に及ぼす半球特有の影響
Ryoki Sasaki1, Hana Watanabe2, Kenichi Sugawara3
1Graduate Course of Health and Social Services, Kanagawa University of Human Services, Yokosuka City, Kanagawa, Japan.
まとめ
鏡の箱のイリュージョンで身体の所有権を変更することは,運動制御に影響します. 同期的に指を叩くと,右手の皮質運動刺激性が向上し,運動出力に横方向的な効果を示した.
科学分野:
- 神経科学は神経科学である.
- モーター・コントロール・コントロール
- ソマトセンサリー処理 (SOMATOSENSORY PROCESSING) とは
背景:
- 身体の所有権とは,自分の身体を自分で所有するという感覚です.
- ミラーボックス・イリュージョン (MBI) は,体感覚フィードバックを変化させることで,身体の所有権を操作することができます.
- ボディ所有権の変更がモーター処理に及ぼす影響は十分に理解されていません.
研究 の 目的:
- 皮質運動刺激性に対する身体所有権の変化による半球特有の影響を調査する.
- 身体の所有権の操作が,トランスクラニアル磁気刺激 (TMS) を用いて運動処理にどのように影響するかを探求する.
主な方法:
- 20人の健康な参加者は,体所有権を調節するためにミラーボックスを使用してMBIを受けました.
- 参加者は,鏡に映る手を観察しながら,同期または非同期に指示指をタップしました.
- モーター・エヴォクテッド・ポテンシャル (MEP) は,TMS経由で,プライマリ・モーター・コルテックス (M1) を越えた,隠れた手の第1の背中の骨内筋から測定された.
主要な成果:
- 同期タップは右手 (左M1刺激) でMEPの振幅を増加させたが,左手ではそうではなかった.
- イリュージョン (VI) の生々しさとプロプロイセプティブ・ドリフトのスコアは,同期タッピング後に高かった.
- 身体の所有権の認識におけるこれらの変化は,両手間で異なることはなかった.
結論:
- 鏡の箱によって引き起こされる所有権の放棄は,半球特有の皮質運動刺激性の調節を引き起こす.
- 改変したボディ所有権は,横方向的にモーター出力に影響します.
- 参加者は,自分の手が鏡に近づいていると認識し,空間認識の変化を示した.
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