マグネトエンセファログラフィーをウェアラブルシステムで実用化
Elena Boto1, Niall Holmes1, James Leggett1
1Sir Peter Mansfield Imaging Centre, School of Physics and Astronomy, University of Nottingham, University Park, Nottingham NG7 2RD, UK.
Nature
|March 22, 2018
まとめ
研究者らは量子センサーを使って 携帯可能な磁気脳鏡 (MEG) ヘルメットを開発しました 脳のイメージングを 自然な頭部運動で可能にし 多様な集団や研究課題の ニューロイメージングの応用を拡大します
科学分野:
- 神経科学
- バイオメディカルエンジニアリング
- 医療用イメージング
背景:
- マグネトエンセファログラフィー (MEG) は,従来,被験者がスキャナーの中で静止することを要求し,発達研究や自然運動を含む研究での使用を制限しています.
- 現在の神経イメージング方法は,特定の集団ではアクセスできないことが多く,調査できる認知プロセスの種類を制限しています.
研究 の 目的:
- 自然で制限のない頭部運動で脳機能のイメージングを可能にする新しい,ウェアラブルな磁気脳図 (MEG) システムを開発する.
- 伝統的な固定MEGシステムの限界を克服し,神経画像研究の範囲を拡大する.
主な方法:
- ヘルメットベースのMEG装置にバックグラウンド磁場無効化システムを持つ高度な量子センサー (非超伝導) の統合.
- 頭をひねり,伸ばし,飲み,ボールゲームをすることなど,様々な自然な動きの間に,ミリ秒解像度でヒトの電気生理学的測定を実証する.
主要な成果:
- ウェアラブルなMEGシステムは 自然な動きの時にミリ秒解像度で 人間の脳活動を記録しました
- この新しいシステムの性能は,頭部を大きく動かす場合でも,最先端の静止型MEGと比較できる.
- このシステムは,かなりの頭部運動にもかかわらず,堅固な電気生理学的測定を行いました.
結論:
- 量子センサーを用いた ウェアラブルMEGシステムの開発は 移動の自由を可能にすることで 神経イメージングの能力を大幅に向上させます
- この技術は 赤ちゃんや子供や大人が 自然な行動をする時の 脳の機能を研究するための 新たな道を開きます
- 潜在的応用には,神経発達コネクトームの特徴づけ,仮想環境でのナビゲーションの研究,運動障害の調査が含まれます.
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