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Short- and long-term effects of the amount of input in early foreign language learning on phonemic discrimination

Research Project

Project/Area Number 23520712
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Foreign language education
Research InstitutionWaseda University

Principal Investigator

HARADA Tetsuo  早稲田大学, 教育・総合科学学術院, 教授 (60208676)

Project Period (FY) 2011-04-28 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2013: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2012: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2011: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords早期外国語教育 / 学習開始年齢 / 学習期間 / インプット / 第二言語習得 / 音声習得 / 音素識別 / ノイズ / インプット量 / 国際研究者交流(アメリカ、ロサンゼルス)
Outline of Final Research Achievements

This study investigated effects of a younger starting age in a situation of minimal classroom exposure on the perception of English consonants produced by different talkers with two noise levels. The listeners were two groups of Japanese university students: early learners (n = 21) who started studying English in kindergarten or elementary school, and late learners (n = 24) who began to study in junior high school. The selected target phonemes were word-medial approximants (/l, r/). Results showed that the late learners discriminated /l/ and /r/ better than the early learners regardless of the noise conditions and talker differences (p < .05). A multiple regression analysis revealed that the late learners’ success could be accounted for by the following predictors: 1) classroom interaction with teacher and peers, 2) use of spoken English outside of classroom, and 3) overall English language proficiency. The age factor may not matter in the minimal input situation.

Report

(5 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Research-status Report
  • 2012 Research-status Report
  • 2011 Research-status Report
  • Research Products

    (24 results)

All 2015 2014 2013 2012 2011 Other

All Journal Article (4 results) (of which Peer Reviewed: 3 results,  Open Access: 2 results,  Acknowledgement Compliant: 1 results) Presentation (18 results) (of which Invited: 2 results) Remarks (2 results)

  • [Journal Article] Factors affecting successful late learners’ phonemic discrimination between /l/ and /r/ in English2015

    • Author(s)
      Tetsuo Harada
    • Journal Title

      Proceedings of the 18th International Congress of Phonetic Sciences (ICPhS)

      Volume: 1

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Does early foreign language learning in school affect phonemic discrimination in adulthood?2014

    • Author(s)
      Tetsuo Harada
    • Journal Title

      Journal of the Acoustical Society of America

      Volume: 136-4 Pages: 2108-2108

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effects of early language learning on speech perception: From an ELF perspective2013

    • Author(s)
      Tetsuo Harada
    • Journal Title

      Waseda Working Papers in ELF (English as a Lingua Franca)

      Volume: 2 Pages: 111-122

    • NAID

      40020444487

    • Related Report
      2013 Research-status Report
  • [Journal Article] Limited long-term effects of early immersion on L2 segmental timing in adulthood.2011

    • Author(s)
      Harada, Tetsuo
    • Journal Title

      Achievements and perspectives in the acquisition of second language speech: New Sounds 2010

      Volume: 2 Pages: 103-115

    • Related Report
      2011 Research-status Report
    • Peer Reviewed
  • [Presentation] Research in monolingual and bilingual speech: past, present, future2015

    • Author(s)
      Tetsuo Harada
    • Organizer
      The International Symposium on Monolingual and Bilingual Speech 2015 (ISMBS 2015)
    • Place of Presentation
      Crete, Greece
    • Year and Date
      2015-09-07 – 2015-09-10
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] Age of learning may not matter in foreign language learning: The perception of phonemic contrast between English /r/ and /l/2015

    • Author(s)
      Tetsuo Harada
    • Organizer
      The International Symposium on Monolingual and Bilingual Speech 2015 (ISMBS 2015)
    • Place of Presentation
      Crete, Greece
    • Year and Date
      2015-09-07 – 2015-09-10
    • Related Report
      2014 Annual Research Report
  • [Presentation] Factors affecting successful late learners’ phonemic discrimination between /l/ and /r/ in English2015

    • Author(s)
      Tetsuo Harada
    • Organizer
      The 18th International Congress of Phonetic Sciences (ICPhS)
    • Place of Presentation
      Glasgow, Scotland, UK
    • Year and Date
      2015-08-10 – 2015-08-14
    • Related Report
      2014 Annual Research Report
  • [Presentation] Does early foreign language learning in school affect phonemic discrimination in adulthood?2014

    • Author(s)
      Tetsuo Harada
    • Organizer
      The 168th Meeting of the Acoustical Society of America
    • Place of Presentation
      Indianapolis, Indiana, USA
    • Year and Date
      2014-10-27
    • Related Report
      2014 Annual Research Report
  • [Presentation] Early English language learning and phonemic discrimination in adulthood2014

    • Author(s)
      Tetsuo Harada
    • Organizer
      CATESOL Annual Conference
    • Place of Presentation
      Santa Clara, California, USA
    • Year and Date
      2014-10-25
    • Related Report
      2014 Annual Research Report
  • [Presentation] Phonological development in a dual language program2014

    • Author(s)
      Tetsuo Harada
    • Organizer
      The Graduate School of Education, University of California, Los Angeles
    • Place of Presentation
      Los Angeles, California, USA
    • Year and Date
      2014-06-03
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] Do early learners with minimal input outperform late learners in second language speech perception?2014

    • Author(s)
      Tetsuo Harada
    • Organizer
      17th World Congress of the International Association of Applied Linguistics
    • Place of Presentation
      Brisbane, Australia
    • Related Report
      2013 Research-status Report
  • [Presentation] Effects of early language learning on speech perception: From an ELF perspective2013

    • Author(s)
      Tetsuo Harada
    • Organizer
      2nd Waseda ELF International Workshop: Part 2 Panel: ELF Research and Its Implications for Pedagogy
    • Place of Presentation
      Waseda University
    • Related Report
      2012 Research-status Report
  • [Presentation] Talker differences in speech perception by early English learners in a minimal input situation2013

    • Author(s)
      Tetsuo Harada
    • Organizer
      The American Association for Applied Linguistics (AAAL) 2013
    • Place of Presentation
      Dallas, Texas, USA
    • Related Report
      2012 Research-status Report
  • [Presentation] Effects of minimal input in childhood on talker differences in second language speech perception2013

    • Author(s)
      Tetsuo Harada & Saya Kawase
    • Organizer
      New Sounds 2013
    • Place of Presentation
      Concordia University, Montreal, Canada
    • Related Report
      2012 Research-status Report
  • [Presentation] Effects of minimal exposure to English in early childhood on phonemic perception2012

    • Author(s)
      Tetsuo Harada & Keiko Sato
    • Organizer
      Pronunciation in Second Language Learning and Teaching (PSLLT)
    • Place of Presentation
      Simon Fraser University, Vancouver, Canada
    • Related Report
      2012 Research-status Report
  • [Presentation] Effects of early English learning in a minimal input situation on phonemic perception2012

    • Author(s)
      Tetsuo Harada & Keiko Sato
    • Organizer
      The 22nd Annual Conference of the European Second Language Association
    • Place of Presentation
      Adam Mickiewicz University in Poznan, Poland
    • Related Report
      2012 Research-status Report
  • [Presentation] Phonemic perception under noise condition by early and late learners of English2011

    • Author(s)
      Harada, Tetsuo
    • Organizer
      The 162nd Meeting of the Acoustical Society of America
    • Place of Presentation
      San Diego, California
    • Related Report
      2011 Research-status Report
  • [Presentation] Effects of early language learning on speech perception: From an ELF perspective

    • Author(s)
      Tetsuo Harada
    • Organizer
      2nd Waseda ELF International Workshop
    • Place of Presentation
      Waseda University, Tokyo
    • Related Report
      2013 Research-status Report
  • [Presentation] Effects of minimal input in childhood on talker differences in second language speech perception

    • Author(s)
      Tetsuo Harada & Saya Kawase
    • Organizer
      New Sounds: International Symposium on the Acquisition of Second Language Speech
    • Place of Presentation
      Montreal, Canada
    • Related Report
      2013 Research-status Report
  • [Presentation] Late learners’ outperformance over early learners with minimal input in phonemic discrimination

    • Author(s)
      Tetsuo Harada
    • Organizer
      SLRF 2013 Second Language Research Forum
    • Place of Presentation
      Provo, Utah
    • Related Report
      2013 Research-status Report
  • [Presentation] Not age but length of learning matters in second language speech learning in a minimal input situation

    • Author(s)
      Tetsuo Harada
    • Organizer
      UCLA Linguistics: Phonetics Seminar
    • Place of Presentation
      Los Angeles
    • Related Report
      2013 Research-status Report
  • [Presentation] Not age but length of learning matters in second language speech learning in a minimal input situation

    • Author(s)
      Tetsuo Harada
    • Organizer
      The American Association for Applied Linguistics (AAAL)
    • Place of Presentation
      Portland, Oregon
    • Related Report
      2013 Research-status Report
  • [Remarks] Talker differences in speech perception

    • URL

      http://www.f.waseda.jp/tharada/aaal2013/handout.pdf

    • Related Report
      2012 Research-status Report
  • [Remarks]

    • URL

      https://www.wnp7.waseda.jp/Rdb/app/ip/ipi0211.html?lang_kbn=0&kensaku_no=4136

    • Related Report
      2011 Research-status Report

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Published: 2011-08-05   Modified: 2019-07-29  

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