Kawahara, Shigeto

写真a

Affiliation

Research Centers and Institutes, The Keio Institute of Cultural and Linguistic Studies (Mita)

Position

Professor

Related Websites

External Links

Profile 【 Display / hide

  • I received BA in Liberal Arts from International Christianity University in 2002 and PhD in Linguistics from the University of Massachusetts, Amherst in 2007. I taught at the University of Georgia for one year and moved to Rutgers, the State University of New Jersey. I stayed there for five years, serving as the director of the phonetics laboratory there. I moved to the Keio Institute of Cultural and Linguistic studies starting June 2013. Associate editor: Phonology, Language and Linguistic Compass. Editorial board: Phonetica; Natural Language and Linguistic Theory (NLLT); Phonological Data and Analysis; Languages

Career 【 Display / hide

  • 2008
    -
    2013

    Rutgers, the State University of New Jersey, the linguistics department, Assistant Professor

  • 2009
    -
    2013

    Rutgers, the State University of New Jersey, Graduate faculty in the psychology department

  • 2011
    -
    2013

    Rutgers, the State University of New Jersey, Rutgers University Center for Cognitive Science (RuCCs)

  • 2012.01
    -
    2012.02

    International Christian University, JICUF Visiting Scholar

  • 2007
    -
    2008

    University of Georgia, Assistant Professor

Academic Background 【 Display / hide

  • 2002
    -
    2007.09

    University of Massachusetts, Amherst

    United States, Graduate School, Completed, Doctoral course

  • 2006

    University of Tromsø

    Norway, Graduate School

  • 1998.04
    -
    2002.03

    International Christian University

    University, Graduated

  • 2000
    -
    2001

    University of California, Santa Cruz

    United States, University

Academic Degrees 【 Display / hide

  • Ph.D. (Linguistics), University of Massachusetts, Amherst, Coursework, 2007.09

    The Emergence of Phonetic Naturalness

  • 教養学士, 国際基督教大学, 2002.03

    Similarity among Variants: Output-Variant Correspondence

 

Research Areas 【 Display / hide

  • Humanities & Social Sciences / Linguistics (Phonetics)

Research Keywords 【 Display / hide

  • phonetics, phonology, laboratory phonology

Research Themes 【 Display / hide

  • 濁音と促音の知覚・音韻, 

    2005.09
    -
    Present

  • 実験音韻論の手法, 

    2011.09
    -
    Present

  • 医療福祉音声学, 

    2013.09
    -
    Present

  • Linguistics and information theory, 

    2015.06
    -
    Present

  • Bayesian references in linguistic behavior, 

    2015.06
    -
    Present

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Books 【 Display / hide

  • うたうからだのふしぎ

    川原繁人、北山陽一、牧村久実, 講談社, 2024.01

  • 言語学的ラップの世界

    川原繁人, 2023.11

  • なぜ、おかしの名前はパピプペポが多いのか? 言語学者、小学生の質問に本気で答える

    川原繁人, ディスカヴァー21, 2023.07

  • フリースタイル言語学

    川原繁人, 大和書房, 2022.06

  • 音声学者、娘とことばの不思議に飛び込む~プリチュアからカピチュウ、おっけーぐるぐるまで~

    川原繁人, 朝日出版社, 2022.05

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Papers 【 Display / hide

  • Limits on gestural reorganization following vowel deletion: The case of Tokyo Japanese.

    Jason Shaw and Shigeto Kawahara

    (Laboratory Phonology)   2023.02

    Research paper (scientific journal), Joint Work, Last author, Accepted

  • Random forests, sound symbolism and Pokémon evolution

    Kilpatrick, Alexander, Aleksandra Ćwiek and Shigeto Kawahara

    PloS One (PLoS ONE)  18 ( 1 January )  2023.02

    Research paper (scientific journal), Joint Work, Last author, Accepted

     View Summary

    This study constructs machine learning algorithms that are trained to classify samples using sound symbolism, and then it reports on an experiment designed to measure their understanding against human participants. Random forests are trained using the names of Pokémon, which are fictional video game characters, and their evolutionary status. Pokémon undergo evolution when certain in-game conditions are met. Evolution changes the appearance, abilities, and names of Pokémon. In the first experiment, we train three random forests using the sounds that make up the names of Japanese, Chinese, and Korean Pokémon to classify Pokémon into pre-evolution and post-evolution categories. We then train a fourth random forest using the results of an elicitation experiment whereby Japanese participants named previously unseen Pokémon. In Experiment 2, we reproduce those random forests with name length as a feature and compare the performance of the random forests against humans in a classification experiment whereby Japanese participants classified the names elicited in Experiment 1 into pre-and post-evolution categories. Experiment 2 reveals an issue pertaining to overfitting in Experiment 1 which we resolve using a novel cross-validation method. The results show that the random forests are efficient learners of systematic sound-meaning correspondence patterns and can classify samples with greater accuracy than the human participants.

  • Rendaku is not blocked by two nasal consonants: A reply to Kim (2022).

    Shigeto Kawahara and Gakuji Kumagai

    Glossa  2023.01

    Research paper (scientific journal), Joint Work, Lead author, Last author, Corresponding author, Accepted

  • Lyman's Law can count only up to two

    Shigeto Kawahara and Gakuji Kumagai

    Laboratory Phonology  2023.01

    Research paper (scientific journal), Joint Work, Lead author, Last author, Corresponding author, Accepted

  • A cross-linguistic, sound symbolic relationship between bilabial consonants, voiced plosives, and Pokémon Friendship

    Kilpatrick, Alexander, Aleksandra Ćwiek, Eleanor Lewis and Shigeto Kawahara

    Frontiers in Psychology  2023

    Research paper (scientific journal), Joint Work, Last author, Accepted

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Papers, etc., Registered in KOARA 【 Display / hide

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Reviews, Commentaries, etc. 【 Display / hide

  • Sound symbolism and theoretical phonology

    Kawahara S.

    Language and Linguistics Compass (Language and Linguistics Compass)  14 ( 8 )  2020.08

  • 子供の科学2019年6月号

     2019.05

    Article, review, commentary, editorial, etc. (trade magazine, newspaper, online media), Single Work

  • Opaque allomorph selection in Japanese and harmonic serialism: A reply to kurisu 2012

    Hall E., Jurgec P., Kawahara S.

    Linguistic Inquiry (Linguistic Inquiry)  49 ( 3 ) 599 - 610 2018.07

    ISSN  00243892

  • 連濁の心理言語学的研究

    KAWAHARA Shigeto

    連濁の研究 (開拓社)   2017.12

    Article, review, commentary, editorial, etc. (other), Joint Work

  • 生成音韻論における連濁の理論的分析

    川原 繁人 ・三間英樹

    連濁の研究 (開拓社)   2017.12

    Article, review, commentary, editorial, etc. (other), Joint Work

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Presentations 【 Display / hide

  • Does Lyman’s Law count?

    Shigeto Kawahara and Gakuji Kumagai

    Workshop accompanying Japanese/Korean Linguistics, 

    2021.10

    Oral presentation (invited, special)

  • Token frequency in the grammar: A wug-test of Voiced Velar Nasalization in Japanese

    Kawahara, Shigeto, Canaan Breiss & Hironori Katsuda

    Annual Meeting of Phonology, 

    2021.10

    Oral presentation (general)

  • 機械学習を用いたポケモン名における音象徴の分析:ランダムフォレスト を用いて

    川原繁人

    日本音声学会, 

    2021.09

    Oral presentation (general)

  • マイボイス: 言語学と医療の接点の一例として

    川原繁人

    日本言語学会, 

    2021.06

    Oral presentation (keynote)

  • Pokemonastics: what we are doing and why we are doing it

    Shigeto Kawahara

    University of College London, Colloquium, 

    2021.05

    Oral presentation (keynote)

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Research Projects of Competitive Funds, etc. 【 Display / hide

  • 言語分析のための最大エントロピー法:音韻・音象徴の両観点から

    2022.04
    -
    2027.03

    MEXT,JSPS, Grant-in-Aid for Scientific Research, 基盤研究(C), Principal investigator

  • アジアと欧米:コミュニケーションの文化差から言語の獲得過程を探る

    2020.04
    -
    Present

    特別推進研究, No Setting

  • 音声科学に基づく英語発音指導教材の開発と整理 — MRI動画と音声記号カード

    2019.04
    -
    2020.03

    学事振興資金個人研究, No Setting

  • 実験音韻論と脳遺伝学に基づく潜在的な読字困難の指標化

    2018.04
    -
    2021.03

    科学研究費基盤研究, No Setting

  • 言語獲得初期における階層性学習と意図共有の脳内横構

    2018.04
    -
    2019.03

    科学研究費新学術領域研究 共創言語進化, No Setting

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Awards 【 Display / hide

  • 日本音声学会2022年度学術研究奨励賞

    2023.03, 日本音声学会

    Type of Award: Award from Japanese society, conference, symposium, etc.

  • 義塾賞

    2022.09

    Type of Award: Keio commendation etc.

  • 日本音声学会学術研究奨励賞

    2016.03, 日本音声学会, マイボイス:難病患者様の失われる声を救う

     View Description

    http://www.psj.gr.jp/jpn/psj_awards

  • JICUF Scholarship Award

    2012.01, Japan ICU Foundation

Other 【 Display / hide

  •  View Details

    Two is too much: Two is too much: [p]-driven geminate devoicing in Japanese. In Phonological
    Society of Japan (ed.) Phonological Studies 18. Tokyo: Kaitakusha

  •  View Details

    Testing Rosen’s Rule and Strong Lyman’s Law. NINJAL Research Papers 7: 111-120.

  •  View Details

    マイボイス:言語学が失われる声を救うために. In Phonological Society of Japan (ed.) Phonological Studies 18. Tokyo: Kaitakusha

  •  View Details

    音象徴の普遍性: 大きさのイメーシを基に. 篠原和子、宇野良
    子(編) オノマトヘ研究の射程: 近づく音と意味. 東京:ひつじ書房, pp. 43-57.

  •  View Details

    The phonetics of Japanese maid voice I: A preliminary study. In
    Phonological Society of Japan (ed.) Phonological Studies 16. Tokyo: Kaitakusha. pp.19-28.

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Courses Taught 【 Display / hide

  • ADVANCED STUDIES IN LINGUISTICS 12

    2023

  • ADVANCED STUDIES IN LINGUISTICS 11

    2023

  • ADVANCED STUDIES IN LINGUISTICS 12

    2022

  • ADVANCED STUDIES IN LINGUISTICS 11

    2022

  • ADVANCED STUDIES IN LINGUISTICS 12

    2021

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Courses Previously Taught 【 Display / hide

  • 言語学特殊

    慶應義塾大学

    2018.04
    -
    2019.03

  • Acoustic phonetics

    ICU

    2018.04
    -
    2019.03

  • Phonetics

    Rutgers University

    2018.04
    -
    2019.03

  • Topics in phonology

    Rutgers University

    2018.04
    -
    2019.03

  • Phonology III

    Rutgers University

    2018.04
    -
    2019.03

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Educational Activities and Special Notes 【 Display / hide

  • 川原繁人の音声学入門

    2020.04
    -
    Present

    , Development of Textbook and Teaching Material

     View Details

    Youtubeで無料公開しているオンライン教材

  • ビジュアル音声学

    2018.06

    , Development of Textbook and Teaching Material

  • IPAカード:楽しく学ぶ国際音声記号

    2018.04
    -
    Present

    , Development of Textbook and Teaching Material

  • 「あ」は「い」より大きい!?:音象徴で学ぶ音声学入門

    2017.11

    , Development of Textbook and Teaching Material

     View Details

     

  • 音とことばのふしぎな世界(岩波サイエンスライブラリー)

    2015.11

    , Development of Textbook and Teaching Material

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Social Activities 【 Display / hide

  • 読売KODOMO新聞

    2019.08
  • 誠文堂新光社特集記事:子供の科学6月号

    2019.05
  • 毎日新聞

    2019.01
  • IPAカード 監修

    2018.11
    -
    Present
  • 読売KODOMO新聞:特集記事

    2018.05

Media Coverage 【 Display / hide

  • 日経新聞

    2022.08

  • 未来授業

    2022.07

  • BLUE OCEAN

    2022.07

  • IPPOセレクション

    2022.07

  • WREP

    2022.06

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Memberships in Academic Societies 【 Display / hide

  • Association of Laboratory Phonology, 

    2020.04
    -
    Present
  • Linguistic Society of America, 

    2020.04
    -
    Present
  • 日本音響学会

     
  • 日本音韻論学会

     
  • 日本音声学会