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Neural substrate of linguistic intuition and its plasticity in neuralfeedback.

Research Project

Project/Area Number 18K18512
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 2:Literature, linguistics, and related fields
Research InstitutionMejiro University

Principal Investigator

TOKIMOTO Shingo  目白大学, 外国語学部, 教授 (00291849)

Co-Investigator(Kenkyū-buntansha) 曽雌 崇弘  京都大学, 総合生存学館, 特定研究員 (00381434)
Project Period (FY) 2018-06-29 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Fiscal Year 2019: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2018: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Keywords適格性判断 / 脳波 / 対人反応性指標 / 自閉症スペクトラム指数 / メタ認知 / 発生源推定 / 脳波の時間周波数分析 / Effective connectivity / ニューロフィードバック / ディフォールトモードネットワーク / 言語直観 / effective network
Outline of Final Research Achievements

The linguistic judgment on a sentence is generally assumed to be invariant. However, Carroll, et al. (1981, Language) asked English native speakers to judge the acceptability of a sentence while they faced their self-images in the mirror in front of them and they observed that the sentences were judged more acceptable when the speakers faced their self-images in the mirror. In this study, we performed an EEG experiment to examine the finding by Carroll, et al. (1981) in Japanese and the neural substrate of the possible plasticity of linguistic judgments. The self-image in a mirror enhanced the EEG oscillation in theta and alpha bands. The higher rejection rate of the experimental sentences in With Mirror than in No Mirror condition could be due to the enhancement in theta and beta bands. This suggests that the meta-linguistic judgment on a sentence could be more acute by a stronger oscillation in theta and alpha band, and that these oscillations are deeply concerned with metacognition.

Academic Significance and Societal Importance of the Research Achievements

実験参加者の眼前に鏡を置き、自身の全身を実験参加者に見せることで、言語課題遂行時にセルフモニタリングを誘導する。セルフモニタリングの有無に対応する行動反応と脳波の解析による神経活動ならびに質問紙による対人反応傾向個人差の間の相関を解析し、認知課題におけるセルフモニタリングの効果とメカニズムを対人傾向の個人差との関わりで考察する。対人コミュニケーションにおける個人差に社会的関心が集まっている現代において、他者視点の存在が行動に与える影響とその個人差を神経科学的に解明する手がかりとなることを意図している。

Report

(3 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • Research Products

    (5 results)

All 2020 2019 2018

All Journal Article (1 results) (of which Peer Reviewed: 1 results) Presentation (4 results) (of which Int'l Joint Research: 1 results,  Invited: 1 results)

  • [Journal Article] The fundamental phonological unit of Japanese word production: An EEG study using the picture-word interference paradigm2019

    • Author(s)
      Verdonschot Rinus G.、Tokimoto Shingo、Miyaoka Yayoi
    • Journal Title

      Journal of Neurolinguistics

      Volume: 51 Pages: 184-193

    • DOI

      10.1016/j.jneuroling.2019.02.004

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Presentation] Self-image in a mirror enhances EEG oscillation in theta and alpha bands in linguistic judgments2020

    • Author(s)
      Naoko Tokimoto and Shingo Tokimoto
    • Organizer
      2020 Organization for Human Brain Mapping Annual Meeting
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Cluster-based permutation test on event-related fields2019

    • Author(s)
      時本真吾
    • Organizer
      ワークショップ「EEG/ERPデータ処理の最近のトレンド」
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] N400, Late Positive Component, and Verbal Working Memory Constraints2019

    • Author(s)
      Shingo Tokimoto and Naoko Tokimoto
    • Organizer
      第 4 回坂本勉記念神経科学研究会
    • Related Report
      2018 Research-status Report
  • [Presentation] 誤った単語アクセントの再解釈の仕組み:脳 波の時間周波数解析・事象関連電位による検討2018

    • Author(s)
      直江大河・木山幸子・時本真吾・馬瓊・汪敏・小泉政利
    • Organizer
      日本言語学会第 156 回大会
    • Related Report
      2018 Research-status Report

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Published: 2018-07-25   Modified: 2021-02-19  

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