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How L1 vowel category affects the perception and production of English vowels by each individual

Research Project

Project/Area Number 16K02650
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Linguistics
Research InstitutionRitsumeikan University

Principal Investigator

NOZAWA TAKESHI  立命館大学, 経済学部, 教授 (30198593)

Co-Investigator(Kenkyū-buntansha) 韓 喜善  大阪大学, 国際教育交流センター, 特任講師(常勤) (80756156)
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2018: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2017: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2016: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Keywords母語の母音カテゴリー / 個人差 / 英語の母音 / 知覚 / 生成 / 日本語話者 / 韓国語話者 / アメリカ英語 / 母音 / 同定 / 弁別 / 第1言語
Outline of Final Research Achievements

This project focuses on individual differences on the perceptual assimilation and identification/ discrimination accuracy of American English vowels by native Japanese and Korean speakers. It has turned out that while some Japanese are sensitive to spectral differences between fleece and kit, they still rely on durational differences to identify these vowels. Those who are sensitive to spectral differences between the two vowels tend to misidentify kit as dress. Japanese speakers generally assume trap to be like /a/, but those who perceive trap as a front vowel identify strup more accurately than those who do not.
Korean speakers, too, use durational difference to identify fleece and kit, but most of them are less sensitive to spectral differences between the two vowels. Some of Korean speakers seem to use durational difference to differentiate dress and trap.

Academic Significance and Societal Importance of the Research Achievements

従来の非母語である英語の母音の知覚に関する研究では、日本語母語話者、韓国語母語話者などをひとつの集団として捉え、それぞれの集団の中の共通の特徴や集団間の違いなどに焦点を当てた研究が多かった。つまり、それぞれの集団に共通の特徴が、日本語母語話者や韓国語話者の特徴となる。しかし、それぞれの集団を構成する母語話者の回答にも個人差があり、一様ではない。本研究の特徴は、その個人差に着目し、それぞれの話者にとって母語の母音のカテゴリーと実験結果の関連を解明することを試みた点にある。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (9 results)

All 2018 2017

All Presentation (9 results) (of which Int'l Joint Research: 5 results)

  • [Presentation] The production of American English vowels by native Japanese speakers in two different conditions2018

    • Author(s)
      Takeshi Nozawa
    • Organizer
      175th Meeting of the Acoustical Society of America
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 日本語母語話者のアメリカ英語の母音の同定,弁別における日本語の母音カテゴリー参照について2018

    • Author(s)
      野澤 健
    • Organizer
      近畿音声言語研究会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Effects of the place of articulation of the following consonant on the identification and discrimination of American English vowels by native speakers of Japanese and Korean2018

    • Author(s)
      Takeshi Nozawa, Heesun Han
    • Organizer
      176th Meeting of the Acoustical Society of America
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 日本語の母音カテゴリーと英語の母音の同定・弁別2017

    • Author(s)
      野澤健
    • Organizer
      近畿音声言語研究会
    • Place of Presentation
      西宮市大学交流センター (兵庫県西宮市)
    • Year and Date
      2017-02-04
    • Related Report
      2016 Research-status Report
  • [Presentation] What the production of American English vowels by native Japanese speakers tells us about how they perceive American English vowels2017

    • Author(s)
      Takeshi Nozawa
    • Organizer
      The 2017 Seoul International Conference on Speech Sciences (SICSS 2017)
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 後続子音の調音方法の日本語話者による英語の母音の同定と弁別への影響2017

    • Author(s)
      野澤 健
    • Organizer
      日本音声学会全国大会
    • Related Report
      2017 Research-status Report
  • [Presentation] 韓国語母語話者による英語の母音の知覚判断―後続子音の影響について―2017

    • Author(s)
      韓 喜善、野澤 健
    • Organizer
      日本音声学会全国大会
    • Related Report
      2017 Research-status Report
  • [Presentation] Identification of vowels of two different varieties of English by native speakers of Japanese and Korean2017

    • Author(s)
      Takeshi Nozawa
    • Organizer
      Acoustics 17
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] The perception of English Vowels by Korean Native Speakers: Concerning the influence of the manner of articulation for consonants following vowels2017

    • Author(s)
      Heesun Han, Takeshi Nozawa
    • Organizer
      The 174th Meeting of the Acoustical Society of American
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research

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Published: 2016-04-21   Modified: 2020-03-30  

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