KEIO RESEARCHERS INFORMATION SYSTEM

Profile 【 Display / hide 】

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 】

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 】

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 】

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 】

Research Areas 【 Display / hide 】

• Humanities & Social Sciences / Linguistics (Phonetics)

Research Keywords 【 Display / hide 】

Research Keywords 【 Display / hide 】

• phonetics, phonology, laboratory phonology

Research Themes 【 Display / hide 】

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 】

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 】

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.

  • Access to Document (DOI)

• 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 】

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

• The phonetics and phonology of kobushi by Minami Kizuki : a first exploration

  Kawahara, Shigeto

  Reports of the Keio Institute of Cultural and Linguistic Studies （慶應義塾大学言語文化研究所)   （ 54 ） 53 - 77 2023.03

  ISSN  03873013

• The development of the theory of mind and the execution of clear speech : a preliminary study with Japanese children

  Kawahara, Shigeto

  Reports of the Keio Institute of Cultural and Linguistic Studies （慶應義塾大学言語文化研究所)   （ 53 ） 99 - 111 2022.03

  ISSN  03873013

• COVID-19 myth busters in world languages : a case for broader impacts of linguistic research during the COVID-19 crisis

  Kawahara, Shigeto

  Reports of the Keio Institute of Cultural and Linguistic Studies （慶應義塾大学言語文化研究所)   （ 52 ） 1 - 11 2021.03

  ISSN  03873013

• IPA cards

  Kawahara, Shigeto

  Reports of the Keio Institute of Cultural and Linguistic Studies （慶應義塾大学言語文化研究所)   （ 51 ） 37 - 45 2020.03

  ISSN  03873013

• Sound symbolism in personal names : experimental and corpus-based explorations

  Kawahara, Shigeto

  科学研究費補助金研究成果報告書 2020

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Reviews, Commentaries, etc. 【 Display / hide 】

Reviews, Commentaries, etc. 【 Display / hide 】

• Sound symbolism and theoretical phonology

  Kawahara S.

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

  • Access to Document (DOI)

• 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

  • Access to Document (DOI)

• 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 】

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 】

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 】

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 】

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 】

Courses Taught 【 Display / hide 】

• ADVANCED STUDIES IN LINGUISTICS 12

  2024

• ADVANCED STUDIES IN LINGUISTICS 11

  2024

• ADVANCED STUDIES IN LINGUISTICS 12

  2023

• ADVANCED STUDIES IN LINGUISTICS 11

  2023

• ADVANCED STUDIES IN LINGUISTICS 12

  2022

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Courses Previously Taught 【 Display / hide 】

Courses Previously Taught 【 Display / hide 】

• Special topics/Practicum

  Rutgers University

  2018.04

  -

  2019.03

• Topics in Cog Sci

  Rutgers University

  2018.04

  -

  2019.03

• An intro to ling.

  Rutgers University

  2018.04

  -

  2019.03

• Seminar

  University of Georgia

  2018.04

  -

  2019.03

• An intro to phonology

  Rutgers University

  2018.04

  -

  2019.03

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Educational Activities and Special Notes 【 Display / hide 】

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 】

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 】

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 】

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