方言特有のアロフォニックバリエーションの知覚評価に対する曝露の影響
1Department of Linguistics & TESOL, University of Texas at Arlington, Arlington, Texas 76010, USA.
The Journal of the Acoustical Society of America
|February 20, 2026
まとめ
方言への曝露は,母音の認識に影響を与えます. 方言特有の音への曝露が少なくなり,それらはより似ているように見え,言語表現と音声学的発達に影響を与えます.
科学分野:
- フォネティクスとフォノロジー
- 社会言語学 社会言語学
- コグニティブ・サイエンス コグニティブ・サイエンス
背景:
- アロフォニックパターンの方言的変異は,聴衆の認知言語表現を形作ることができる.
- 音声学的変化に関する以前の研究は,主に生産データを使用しており,知覚に基づく洞察が必要でした.
研究 の 目的:
- アメリカ英語の母音 /æ/ と /aɪ/ の方言特有のアロフォニックパターンへのさまざまな曝露が,聴衆の知覚的な類似性判断にどのように影響するか調査する.
- 新しい知覚データを用いて,音声化理論を検証する.
主な方法:
- 2つのオハイオ州地域から,異なるアロフォニック被曝 (北東オハイオ州とミッドランドオハイオ州) のリスナーを比較した分析.
- 聴衆の行動を評価するために,知覚的な類似性判断のタスクを使用しました.
- /æ/ と /aɪ/ のアロフォニックパターンの音響的区別に焦点を当てた.
主要な成果:
- 方言特有のアロフォニーへの曝露が少ない聴衆は,同じフォネームの文脈的なアロフォンをより類似していると認識しました.
- 方言の多様性に対するより大きな曝露は,聴衆がアロフォンの間の類似性を少なく認識するようになった.
- 曝露レベルは,アロフォンの認知表現における音声学的コントラストの程度に直接影響を与えます.
結論:
- 発見は,音声学化の遅い抽象性理論を支持しています.
- 音声学的な抽象性は,コミュニティの継続的な音の変化の間に徐々に発達する.
- 感知データは,音の変化と方言の影響のメカニズムに関する重要な洞察を提供します.
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