제2언어 습득 과정의 음절 제약과 공모성 효과: 베트남어 모어 화자의 한국어 이중모음 발음을 중심으로

초록

This study presents an Optimality Theoretic account of /j/-diphthongs in Vietnamese speakers learning Korean (hereafter KSL). Vietnamese KSL presents an interesting case in which the Korean /j/-diphthongs are pronounced differently depending on the syllable structure of the target word. Sometimes, the transitional sound /j/ is dropped and sometimes replaced by another consonant. The main finding of this study is that these seemingly different phenomena are all caused by a single motive to meet the requirements for syllable core composition in Vietnamese. In addition, the native language constraint rankings interact with target constraint rankings in a specific way. To formally support this, I established a hierarchy among syllable structure constraints (*Complex(M), *P/palatal glide, *Complex(P), Onset, No Coda) and faithfulness constraints (Max-IO, Ident-IO(F)) and detailed sub-constraints belonging to Ident-IO(F).

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