大声で話すこととアクセントを偽装する脳のプロセスは,モータースピーチの計画/プログラミングの窓として機能します
Bryan Sanders1, Monica Lancheros1, Marion Bourqui1
1Faculty of Psychology and Educational Sciences, University of Geneva, Geneva, Switzerland.
まとめ
話し手は,発声前の200ミリ秒で,より大きな声で話すか,アクセントを偽るなど,異なるスピーチモードを計画します. この研究では,電気脳波 (EEG) を用いて,これらの言語モードの神経活動の違いを明らかにしました.
科学分野:
- 神経科学は神経科学である.
- スピーチサイエンス スピーチサイエンス
- 言語学 言語学とは
背景:
- 言語コミュニケーションには,独特の音声的な特徴を持つ様々な音声モードが含まれています.
- 既存のモデルには,音声モードのエンコーディングに関するメカニズム的な説明が欠けている.
- スピーチ・モード・プランニングを理解することは,スピーチ・プロダクション・理論にとって極めて重要です.
研究 の 目的:
- 標準語に対する話のモードのニューラルエンコーディングを調査する.
- 高時間解像度分析のために電気脳図 (EEG) を利用する.
- 大声のスピーチやアクセントのあるスピーチがどのように計画されているかを調べてください.
主な方法:
- 20人の参加者は,遅延した偽単語生成タスクを実行しました.
- 録音された脳波 (EEG) データは,標準的なスピーチ,大声でのスピーチ,そして偽りのアクセント状態で記録されます.
- イベント関連ポテンシャル (ERP) を分析し,スピーチモードを比較した.
主要な成果:
- 音声モードには,標準的な音声生成ネットワークにおける神経活動の増加が含まれます.
- 声高なスピーチと偽りのアクセントの電気生理学的なシグネチャーは,声の発生に先立つERPの違いを示しました.
- 分析は,異なる言語モードの異なる時間的,空間的なパターンを示した.
結論:
- 異なるスピーチモードは,声の生産の前に200ミリ秒以内に神経でコーディングされます.
- 音声モードのプランニングは,そのモードに特異的であり,さらなる研究が必要である.
- この発見は,言語の多様性の神経基礎を理解するのに役立つ.
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