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Estimation of dream content by machine learning using magnetoencephalographic data.

Research Project

Project/Area Number 19K16244
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 45060:Applied anthropology-related
Research InstitutionKyushu University

Principal Investigator

Motomura Yuki  九州大学, 芸術工学研究院, 助教 (50645273)

Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2021: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2020: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2019: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywords夢 / 機械学習 / レム睡眠 / 脳波 / 入眠時心像 / 情動推定
Outline of Research at the Start

近年、REM(Rapid eye movement)睡眠が情動調節機能に与える影響が明らかになってきている。背景には夢見を伴う複雑な生理学的メカニズムがあると想定されるが、そのメカニズムはほとんど明らかになっていない。本研究課題では部分断眠後の朝型の仮眠時の生理計測によって、REM睡眠時の夢内容のデータを取得し、夢見時の生理反応から機械学習技術によって夢の情動的内容を推定するアルゴリズムを構築する。構築したアルゴリズムはREM睡眠、夢見、情動調節に関する研究の大幅な進展に役立つことが期待される。

Outline of Final Research Achievements

In this study, we attempted to construct a machine-learning algorithm to determine the affective value (negative or positive) of dreams using physiological indicators such as EEG, eye movements and heart rate. Using physiological data obtained simultaneously with dream reports during REM sleep acquired at Hiroshima University, we constructed a machine learning algorithm for feature selection using random forests and BORUTA. As a result, we were able to discriminate the emotional valence of dreams with nearly 70% accuracy.

Academic Significance and Societal Importance of the Research Achievements

悪夢はうつ病や自殺の予測因子であることがわかっていることから、本成果で構築した夢の情動価判別アルゴリズムは悪夢の検知によるうつや自殺の予防法開発等に役立つ可能性があります。さらにエンターテインメント分野においても、夢の内容にアクセスする新たなインターフェースの開発にも貢献すると考えられます。また本研究の特色として、大型の機器を使用せず、脳波や生理反応など比較的簡便に測定できる手法を用いていることから、応用可能性が高いこともあげられます。

Report

(2 results)
  • 2023 Final Research Report ( PDF )
  • 2019 Research-status Report
  • Research Products

    (9 results)

All 2020 2019

All Journal Article (4 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 4 results,  Open Access: 3 results) Presentation (5 results) (of which Int'l Joint Research: 2 results,  Invited: 2 results)

  • [Journal Article] Emotional Data Visualization for Well-Being, Based on HRV Analysis2020

    • Author(s)
      Matsumae Akane、Luo Ruiyao、Wang Yun、Nishimura Eigo、Motomura Yuki
    • Journal Title

      Intelligent Human Systems Integration 2020

      Volume: 1 Pages: 1270-1276

    • DOI

      10.1007/978-3-030-39512-4_194

    • ISBN
      9783030395117, 9783030395124
    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Tracking intermediate performance of vigilant attention using multiple eye metrics.2020

    • Author(s)
      Abe T, Mishima K, Kitamura S, Hida A, Inoue Y, Mizuno K, Kaida K, Nakazaki K, Motomura Y, Maruo K, Ohta T, Furukawa S, David F. Dinges, Ogata K.
    • Journal Title

      SLEEP

      Volume: 43 Issue: 3 Pages: 1-17

    • DOI

      10.1093/sleep/zsz219

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Cortisol-related hippocampal-extrastriate functional connectivity explains the adverse effect of cortisol on visuospatial retrieval.2019

    • Author(s)
      Hakamata Y, Komi S, Sato E, Izawa S, Mizukami S, Moriguchi Y, Motomura Y, Matsui M, Kim Y, Hanakawa T, Inoue Y, Tagaya H.
    • Journal Title

      Psychoneuroendocrinology

      Volume: 107 Pages: 104310-104310

    • DOI

      10.1016/j.psyneuen.2019.04.013

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] ERP study on the associations of peripheral oxytocin and prolactin with inhibitory processes involving emotional distraction2019

    • Author(s)
      Hayashi Sayuri、Tsuru Ayami、Kishida Fumi、Kim Yeon-Kyu、Higuchi Shigekazu、Motomura Yuki
    • Journal Title

      Journal of Physiological Anthropology

      Volume: 38 Issue: 1 Pages: 5-5

    • DOI

      10.1186/s40101-019-0196-z

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] RESEARCH ON BRAIN ACTIVITY DURING FALLING ASLEEP : A SIMULTANEOUS EEG-FMRI STUDY2019

    • Author(s)
      Hiroki Yoshida, Teruhisa Okuya, Ryousei Kurose, Yuki Motomura
    • Organizer
      The 14th International Congress of Physiological Anthropology
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] EFFECT OF FEAR EXPRESSION ON MICROSACCADIC BIAS IN THE ANTI-DIRECTION TO THE GAZE CUES2019

    • Author(s)
      Ryousei Kurose, Yuki Motomura
    • Organizer
      The 14th International Congress of Physiological Anthropology
    • Related Report
      2019 Research-status Report
  • [Presentation] SLEEP DEBT IN THE MODERN SOCIETY AND THE BRAIN MECHANISM OF EMOTIONAL AND COGNITIVE DYSREGULATION2019

    • Author(s)
      Yuki Motomura
    • Organizer
      The 14th International Congress of Physiological Anthropology
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 睡眠負債と情動反応2019

    • Author(s)
      元村祐貴
    • Organizer
      第35回日本ストレス学会学術総会
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] 潜在的睡眠不足からの回復は前頭前野による扁桃体賦活抑制機能の改善を介して気分を改善する:ASL-fMRI研究2019

    • Author(s)
      元村祐貴、北村真吾、中崎恭子、大場健太郎、勝沼るり、寺澤悠理、 肥田昌子、守口善也、三島和夫
    • Organizer
      日本睡眠学会第44回定期学術集会
    • Related Report
      2019 Research-status Report

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Published: 2019-04-18   Modified: 2025-01-30  

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