| Project/Area Number |
17K13458
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Linguistics
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| Research Institution | University of Tsukuba (2019-2023)
Institute of Physical and Chemical Research (2017-2018) |
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Principal Investigator |
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| Project Period (FY) |
2017-04-01 – 2024-03-31
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| Project Status |
Completed (Fiscal Year 2023)
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| Budget Amount *help |
¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2020: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2019: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2018: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2017: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
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| Keywords | acquisition / plosives / affricates / Japanese / Korean / high vowel devoicing / 言語習得 / 破裂音 / 破擦音 / 韓国語 / 日本語 / Acquisition / IDS / ADS / 幼児言語 / 子音発達 / 対乳児発話 / 言語発達 / 言語獲得 / 摩擦音 |
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| Outline of Final Research Achievements |
Based on a series of experiments in Japanese and Korean, this project revealed the following. (1) There was no significant difference in stop VOT (Voice Onset Time) between ADS (Adult-Directed Speech) and IDS (Infant-Directed Speech). (2) F0 (fundamental frequency) differences between voiced and voiceless stops were enhanced in IDS compared to ADS in Japanese. (3) In Korean, F0 rather than VOT turned out to be a more crucial cue in the distinction between lenis and aspirated stops though some inter-speaker differences were observed. (4) In Korean, acoustic differences between lenis and aspirated affricates were enhanced in IDS compared to ADS. (6) Regarding the discrimination of Korean affricates by infants, the month ages were revealed depending on the affricate pairs.
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| Academic Significance and Societal Importance of the Research Achievements |
日本語と韓国語において音声実験および対乳児実験を行った。お母さんの発話の音響的特徴や乳児の子音弁別パターンをこれらの実験データに基づき分析を行った。今まで注目されていなかった、幼児の破擦音におけるlaryngeal contrastの獲得過程を検討するので阻害音の獲得の全体像に近づける点に独創性がある。また、タイ語など他言語との対照研究に拡大することができる点に学術上の意義がある。従って、言語特有の特徴と言語一般的な傾向の異同を検討することにつながり、類型論的・一般言語学的の上で重要な意義を有している。
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