発話された文のニューラル・デコーディングによる言語合成
Gopala K Anumanchipalli1,2, Josh Chartier1,2,3, Edward F Chang4,5,6
1Department of Neurological Surgery, University of California San Francisco, San Francisco, CA, USA.
Nature
|April 26, 2019
まとめ
ニューラル信号を 音声に変換する 新しい脳コンピュータインターフェース このスピーチ神経義肢技術は 神経障害のある人のコミュニケーションを 回復する見込みです
科学分野:
- 神経科学
- 生物医学工学
- 言語科学
背景:
- 神経学的障害は コミュニケーション能力に 深刻な影響を及ぼします
- 複雑な声道制御により テクノロジーを使って 言葉を復元することは大きな課題です
研究 の 目的:
- 脳の活動から 聞こえる言葉を合成できる 神経解読器を開発する
- 言語の解読のために 運動と音の表現を活用する
主な方法:
- 神経信号を解釈する ニューラルネットワークベースのデコーダーを設計した
- 皮質活動の解読を 運動表現にしました
- 発音表現を音声に変えた
主要な成果:
- 神経活動から合成された音声は,閉じた語彙のテストで成功裏に識別され,書き換えられました.
- 中間関節のダイナミクスを組み込むことで,特に限られたデータでパフォーマンスを改善しました.
- 解読された関節表現はクロススピーカー保存を示し,解読器の転送を可能にしました.
結論:
- 発達した神経解読器は 脳の活動から 言語を効果的に合成します
- この技術は コミュニケーションを回復する 言語神経義肢の可能性を示しています
- 沈黙の模倣で働くというデコーダーの能力は 多様な用途を示唆しています
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