論文

2015年

Dependence on age of interference with phoneme perception by first- and second-language speech maskers

Acoustical Science and Technology
  • Rieko Kubo
  • ,
  • Masato Akagi
  • ,
  • Reiko Akahane-Yamada

36
5
開始ページ
397
終了ページ
407
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1250/ast.36.397
出版者・発行元
Acoustical Society of Japan

This study investigated the differences in first-language-based (L1-based) phonetic processing for second language (L2) phonemes among different age groups of adults. A speech-inspeech masking paradigm was utilized to examine the contribution of the L1-based processing. A phoneme identification task in one language was conducted in the presence or absence of an interferer of a masker of the same or a different language. The degree of interference (i.e., the decrease in identification performance) was postulated to increase as the similarity of underlying processes for the target and masker increases. Experiment 1 was conducted to test the effectiveness of the paradigm. As expected, the interference increased as the similarity of underlying processes for the target and masker increased. Experiment 2 examined the perception of English /r/-/l/ and other phonetic contrasts by Japanese listeners in various adult age groups, to examine whether the degree of interference differs depending on the putative degrees of L1-based processing and on age. The results demonstrated such differences and showed that the L1-based processing can be estimated from the decrease in the identification performance. They also suggested that the perception of /r/-/l/ in the initial singleton and initial cluster positions was high L1-based in older adults.

リンク情報
DOI
https://doi.org/10.1250/ast.36.397
J-GLOBAL
https://jglobal.jst.go.jp/detail?JGLOBAL_ID=201502209497577779
URL
http://jglobal.jst.go.jp/public/201502209497577779

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