일본어의 초점 실현과 인토네이션의 구축 = Realization of Discourse Focus and Structure of Intonation in Japanese

다국어 초록 (Multilingual Abstract)

The purpose of the present study is to see in terms of F_0 variation in Japanese how discourse focus and teh lexical word accent interact with each other in realizing overall intonation patterns. Discourse focus causes prosodic restructuring of phrase structures and, as a result, largely affects pitch contours, where the lexical word accent is said to delimit the F_0 into a certain range.
Measurement of F_0 was made of utterances of Japanese sentences to observe behavior of pitch contours with varied focus assignment and lexical accent specifications. The utterances were obtained in question-answer discourse contexts so that in a sentence, either one NP was always focused or no focus was assigned. I set four points for F_0 measurement; F_1_s, F_1_m, F_2_m, two for each noun phrase corresponding to F_0 at the beginning of the first syllable and that of the vocalic portion of the second syllable in the two NP's. The results of present study were as follows: (1) for all combination of lexical accent types, the F_0 rise both in NP1 and NP2 are higher when focused than when not focused. (2) NP2 starts a new accentual phrase when focused, showing even higher F_0 than NP1, the latter of which implies that in forming a new accentual phrase by focusing, catathesis does not seem to take effect on NP2 preceded by accented NP1. (3) unfocused NP2 preceded by unaccented NP1 has higher F_0 than those preceded by accented NP1.