영어 무성음 앞 모음의 과잉조음 현상: 모국어 화자와 이중언어 화자 값 = Hyperarticulation of vowels before voiceless stops in English: Native and bilingual speakers’ values

다국어 초록 (Multilingual Abstract)

The aim of this study is to test the Pre-voiceless Hyperarticulation Hypothesis of Thomas (2000) and Moreton (2004) for American English vowels [i, ɪ, eɪ, oʊ, aɪ, ɔɪ, aʊ]. Native and Korean-English bilingual speakers participated in a production experiment and read minimal pairs in the forms of “[bVd] - [bVt]” in a carrier sentence. As for the native speakers, the high front vowel [i] did not display significant peripheralization, and the lax [ɪ] tended to be centralized in the vowel space. Because the offglide [ɪ] of the diphthongs [eɪ, aɪ, ɔɪ] displayed peripheralization, the centralization of [ɪ] was interpreted as another type of hyperarticulation to maintain phonological contrast against [i] in the voiceless context. Bilingual speakers generally displayed smaller degrees of hyperarticulation or non-native-like formant patterns, and it was interpreted that the learning of the fine-grained differences in the formant values according to the coda voicing has not been completed even for highly experienced learners of English.

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