東日本方言における中舌母音の起源に関する一つの仮説 : 琉球方言の音変化に照らして(<特集>東日本の音声)

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タイトル別名
  • A Hypothesis on the Origin of the Central Vowel in the Dialects of East Japan: in Comparison with the Vowel Shift in the Ryukyuan Dialects(<Feature Articles>Phonetics and Phonology of Eastern Japanese Dialects)
  • 東日本方言における中舌母音の起源に関する一つの仮説 : 琉球方言の音変化に照らして
  • ヒガシニホン ホウゲン ニ オケル チュウ ゼツ ボイン ノ キゲン ニ カンスル ヒトツ ノ カセツ : リュウキュウ ホウゲン ノ オト ヘンカ ニ テラシテ

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抄録

Central vowels are observed both in the Ryukyuan dialects and East-northern dialects of the Japanese language. This paper takes notice of the u-fronting preceded by the coronal consonants which were observed in the 16th century dialect of Okinawa main island. It is speculated that this kind of coarticulation also was a trigger change toward the centralization of [u] vowel of East-northern dialects of Japanese. Just as the coronal consonants influence the shape of the tongue body by u-fronting, it is also supposed that the shape of the tongue pronouncing [i] could also be assimilated to the preceding coronal consonants. As the results of the above two assimilations, firstly /i/ and /u/ are speculated to have begun centralization in the environment following /s, z, c/. Secondly the consonants preceding central vowels have extended to all the consonants other than /s, z, c/, and thirdly /i/ and /u/ following /s, z, c/ have ceased to be distinct phonemically.

収録刊行物

  • 音声研究

    音声研究 15 (3), 27-36, 2011

    日本音声学会

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