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Production of the Japanese moraic nasal /N/ by speakers of English: An ultrasound study

Research Project

Project/Area Number 19K13254
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 02090:Japanese language education-related
Research InstitutionMaebashi Institute of Technology

Principal Investigator

Mizoguchi Ai  前橋工科大学, 工学部, 准教授 (10824823)

Project Period (FY) 2019-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2021: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2019: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Keywords第二言語習得 / 撥音 / 調音 / 日本語 / 超音波 / 鼻音 / 発音 / 中国語 / 日本語教育
Outline of Research at the Start

英語を母語とする日本語学習者にとって、日本語の撥音「ん」は発音が難しいとされている。英語の鼻音は、両唇音(m)、歯茎音(n)、軟口蓋音(ng)の三種類だが、そのどれも日本語の「ん」とは違った音だからである。本研究では、超音波診断装置を用いて舌の動きを観察、英語母語話者の「ん」の調音分析を行う。これにより、学習者の発音の明瞭性向上に役立つデータを提供することが可能になる。また、結果をもとに音声と音韻の相互関係についての議論も行う。

Outline of Final Research Achievements

The articulation of the Japanese moraic nasal /N/ by Japanese learners, especially the tongue movement, was observed using an ultrasound device. The tongue contours of three native English speakers and four native Chinese speakers were analyzed, and the results were presented at international conferences and published in the proceedings. While most native Japanese speakers articulated with the back of the tongue, three out of three native English speakers and three out of four native Chinese speakers pronounced it as an alveolar /n/. Although /n/ is one of the allophones of /N/ and is unlikely to cause communicative misunderstandings, these results allow us to visually demonstrate to learners that /N/ is a phoneme that does not require alveolar constriction.

Academic Significance and Societal Importance of the Research Achievements

言語研究において、発話された音声の音響分析に比べ、発話時の調音分析は、口腔内を観察することの難しさから、あまり進んでいない現状がある。とりわけ、第二言語学習者の調音データは不足している。通言語的にみて特殊な音素である日本語撥音を用いて、学習者が母語にない音素を獲得する過程を舌形状から解明する本研究は、学習者の発音の明瞭性や流暢性を向上させるための基礎データとなるだけでなく、学習者の調音特徴から音声知覚(perception)と音声産出(production)の関係や、音声(phonetics)と音韻(phonology)の関係を議論するための材料となる。

Report

(6 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (10 results)

All 2024 2023 2022 2021 2019 Other

All Int'l Joint Research (2 results) Journal Article (3 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 2 results,  Open Access: 2 results) Presentation (5 results) (of which Int'l Joint Research: 3 results,  Invited: 2 results)

  • [Int'l Joint Research] Haskins Laboratories/City University of New York/Yale University(米国)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] Haskins Laboratories/City University of New York/Yale University(米国)

    • Related Report
      2021 Research-status Report
  • [Journal Article] Tongue contours for the Japanese moraic nasal by speakers of Standard Chinese2023

    • Author(s)
      Ai Mizoguchi, Maho Morimoto, Weiyu Li, Takayuki Arai
    • Journal Title

      Proceedings of the 20th International Congress of Phonetic Sciences

      Volume: - Pages: 2622-2626

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Inter-Speaker Variability of Articulation for the Japanese Moraic Nasal: An Ultrasound Study2022

    • Author(s)
      Ai Mizoguchi, Mark K. Tiede, D. H. Whalen
    • Journal Title

      Phonological Studies

      Volume: 25 Pages: 121-132

    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Journal Article] Production of the Japanese moraic nasal /N/ by speakers of English: An ultrasound study2019

    • Author(s)
      Ai Mizoguchi, Mark Tiede, Doug Whalen
    • Journal Title

      Proceedings of the 19th International Congress of Phonetic Sciences

      Volume: - Pages: 3493-3497

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] 言語研究における調音データの活用例-超音波を用いた舌形状分析の実践-2024

    • Author(s)
      溝口愛
    • Organizer
      日本音響学会2024年春季研究発表会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Effects of fine phonetic detail on speaker identification from Japanese nasal consonants2023

    • Author(s)
      Ai Mizoguchi, Mark K. Tiede, D. H. Whalen
    • Organizer
      Hanyang International Symposium on Phonetics and Cognitive Sciences of Language (HISPhonCog)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Tongue contours for the Japanese moraic nasal by speakers of Standard Chinese2023

    • Author(s)
      Ai Mizoguchi, Maho Morimoto, Weiyu Li, Takayuki Arai
    • Organizer
      The 20th International Congress of Phonetic Sciences
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Articulation of the Japanese Moraic Nasal: Place of Articulation, Assimilation, and L2 Transfer2021

    • Author(s)
      Ai Mizoguchi
    • Organizer
      日本音韻論学会
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] Production of the Japanese moraic nasal /N/ by speakers of English: An ultrasound study2019

    • Author(s)
      Ai Mizoguchi, Mark Tiede, Doug Whalen
    • Organizer
      The 19th International Congress of Phonetic Sciences
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research

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Published: 2019-04-18   Modified: 2025-01-30  

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