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논문 기본 정보

자료유형
학술저널
저자정보
Jonny Jungyun Kim (Pusan National University) Mijung Lee
저널정보
한국음성학회 말소리와 음성과학 말소리와 음성과학 제15권 제1호
발행연도
2023.3
수록면
1 - 7 (7page)

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초록· 키워드

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This study investigated the influences of probabilistic accessibility of the word being produced – as determined by its usage frequency and neighborhood density – on native and high-proficiency L2 speakers’ realization of six English monophthong vowels. The native group hyperarticulated the vowels over an expanded acoustic space when the vowel occurred in words with low frequency and high density, supporting the claim that vowel forms are modified in accordance with the probabilistic accessibility of words. However, temporal expansion occurred in words with greater accessibility (i.e., with high frequency and low density) as an effect of low phonotactic probability in low-density words, particularly in attended speech. This suggests that temporal modification in the opposite direction may be part of the phonetic characteristics that are enhanced in communicatively driven focus realization. Conversely, none of these spectral and temporal patterns were found in the L2 group, thereby indicating that even the high-proficiency L2 speakers may not have developed experience-based sensitivity to the modulation of sub-categorical phonetic details indexed with word-level probabilistic information. The results are discussed with respect to how phonological representations are shaped in a word-specific manner for the sake of communicatively driven lexical intelligibility, and what factors may contribute to the lack of native-like sensitivity in L2 speech.

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Abstract
1. Introduction
2. Method
3. Results
4. Discussion
References

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