Influence of L1 on the Acquisition of Japanese Mora Timing by Native Speakers of English and Korean

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  • 英語母語話者と韓国語母語話者による日本語促音の習得

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Abstract

<p>This study investigates the acquisition of Japanese mora timing by English- and Korean-second language (L2) learners of Japanese. Production data was obtained through a word-learning task, and the ratio of closure duration (CD) in C2 to V1 in C1V1C2V2 as well as the length of V1 in both stop geminate-singleton and in non-stop geminate-singleton pairs were measured and compared. The number of mispronunciations which were caused by V1 lengthening were also counted. Results suggest that both English- and Korean-speaking learners are influenced by the first language (L1) phonological system differently. English learners of Japanese (EL) had smaller ratio of CD to V1 in stop geminates than Japanese speakers (JS) and Korean learners of Japanese (KL). Only ELs were observed lengthening V1. KL, on the other hand, had a greater ratio of CD to V1 in stop geminates than JS and ES; however, unlike JS, they did not control the length of V1. KL's V1 were only found to be relatively shorter than that of JS for stop consonants. This study points to the significance of the L1 in the acquisition of the intrinsic nature of lexical-phonological structure in the learners' lexicon.</p>

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