騒音中のスピーチ知覚:子供たちは同級生を大人とは違う方法で聞くのか?

Qian-Jie Fu¹, Srikanta K Mishra², John J Galvin³

¹Department of Head and Neck Surgery, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, California, USA.

Ear and hearing

|February 16, 2026

まとめ

子供は,それが話す時,言葉をより良く認識します.

科学分野:

音声知覚の研究音声知覚の研究
小児オーディオロジー
発達心理学の心理学について

背景:

既存のスピーチ知覚の研究は,主に大人のスピーチを使用し,子供のスピーチの音響と音声の違いを無視しています.
子供は,同級生を含む多様な音源にさらされ,さまざまな話し手のタイプをノイズでどのように処理するかを理解する必要があります.
騒々しい環境でのスピーチ認識は,子どものコミュニケーションと学習に不可欠です.

研究の目的:

子どもと大人が,子供と大人が発するスピーチを聞くときに,音声中のスピーチ認識においてどのように異なるかを調査する.
騒音のある環境で,子供と大人のスピーチターゲットを処理する発達傾向を調べる.
子供のための成人ベースのスピーチ知覚テストの代表性を評価する.

主な方法:

音声認識の値 (Speech Recognition Thresholds, SRT) は,70人の子ども (4~17歳) と27人の成人に測定された.
聴衆は,スピーチ型のノイズの中で,子供と大人が発するスピーチターゲットを特定しました.
分析は,聴衆の年齢と話し手のタイプに基づくSRTの違いに焦点を当てました.

主要な成果:

子どもは,大人が発するスピーチと比較して,子供の発するスピーチのSRTが有意に優れていることを実証しました.
チャイルド・トーカーの利点は,幼い子供 (<10歳) でより顕著であり,年齢とともに減少した.
大人向けのスピーチ認識テストは,子どものスピーチ認識能力が完全に捉えられない可能性があり,それは子供と大人のターゲットSRTの間の相関が弱いためです.

結論:

子どもの発するスピーチ刺激は,特に騒音のある環境では,小児のスピーチ知覚の研究を正確にするために不可欠です.
騒音における子供と大人の言葉を認識するための発達経路は異なっており,ユニークな小児処理パターンを強調しています.
発見は,子どものスピーカー刺激を考慮して,子ども向けのスピーチ知覚評価と介入の必要性を示唆しています.

キーワード:

大人の声で,大人の声で.子どもの声子どもの声 3桁の数字のトリプレットスピーチ知覚スピーチ知覚

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