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Objectively evaluating warm/cold and comfortable feelings by simultaneous measurement of advanced biosignals and developing the simplified measurement system

Research Project

Project/Area Number 17H03529
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Energy engineering
Research InstitutionThe University of Tokyo

Principal Investigator

Yoshida Yoshikuni  東京大学, 大学院工学系研究科(工学部), 教授 (30302756)

Co-Investigator(Kenkyū-buntansha) 井原 智彦  東京大学, 大学院新領域創成科学研究科, 准教授 (30392591)
松橋 隆治  東京大学, 大学院工学系研究科(工学部), 教授 (80229517)
Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥11,180,000 (Direct Cost: ¥8,600,000、Indirect Cost: ¥2,580,000)
Fiscal Year 2019: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2018: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2017: ¥7,150,000 (Direct Cost: ¥5,500,000、Indirect Cost: ¥1,650,000)
KeywordsNIRS / 酸素化ヘモグロビン濃度 / 心拍波形 / LF/HF / 温冷感 / 快適感 / 脳血流 / 心拍 / LF/HF比
Outline of Final Research Achievements

We measured oxy-hemoglobin concentration in brain blood flow and waveform of the human heartbeat when a subject was stimulated thermally. In the range of warm feeling temperature, LF/HF value, known as a stress index, increased and oxy-hemoglobin concentration also increased as the increase of room temperature. In the range of cold feeling temperature, on the other hand, LF/HF value increased and oxy-hemoglobin concentration decreased as the drop of room temperature. This important knowledge can be applied for developing the system to identify warm/cool feelings from human biosignals.

Academic Significance and Societal Importance of the Research Achievements

人間の温冷感や快適感は人それぞれの主観的なものととらえられている。一方で、これらを客観的に計測できれば、空調の自動制御や熱中症リスクの高い人の判別に応用できるなどの様々な社会的な意義があると考えられる。また、温熱刺激に対する心拍波形の反応をLF/HF比によって被験者実験を通して評価したり、脳血流中の酸素化ヘモグロビン濃度への影響を多数の被験者実験を通して検証した研究は過去にほとんどなく、学術的な意義も大きいといえる。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Annual Research Report
  • 2017 Annual Research Report
  • Research Products

    (6 results)

All 2019 2018

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

  • [Journal Article] Research on Thermal Comfort by Analyzing LF/HF Value and Heat Flow Rate2019

    • Author(s)
      Ziyang Wang and Ryuji Matsuhashi
    • Journal Title

      Journal of Japan Society of Energy and Resources

      Volume: 40 Issue: 5 Pages: 154-159

    • DOI

      10.24778/jjser.40.5_154

    • NAID

      130007705493

    • ISSN
      2433-0531
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] Evaluation of sleep disorder caused by urban heat island based on the Pittsburgh Sleep Quality Index2019

    • Author(s)
      Ihara T, Narumi D, Fukuda S, Kondo H
    • Organizer
      The 5th International Conference on Countermeasures to Urban Heat Islands
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 東京都区部の各街区における鏡面反射・再帰反射を考慮した都市キャノピーモデルを用いた再帰反射フィルムによる屋外熱環境の改善効果及び省エネ効果の評価2019

    • Author(s)
      方儒ゲツ, 山口和貴, 玄地裕, 井原智彦
    • Organizer
      第14回日本ヒートアイランド学会全国大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 2050年代のジャカルタにおける性別を考慮した睡眠障害の予測2019

    • Author(s)
      張典, 井原智彦
    • Organizer
      第14回日本ヒートアイランド学会全国大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 東京オリンピック・パラリンピックにおけるマラソン・競歩沿道等の暑さ対策2019

    • Author(s)
      井原智彦, 山口和貴, 三木勝夫
    • Organizer
      第14回日本ヒートアイランド学会全国大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 脳血流のヘモグロビン濃度計測に基づく温冷感と快適感の客観的評価2018

    • Author(s)
      李 和聡,王 子艦,吉田 好邦,井原 智彦,松橋 隆治
    • Organizer
      第34回エネルギーシステム・経済・環境コンファレンス
    • Related Report
      2017 Annual Research Report

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Published: 2017-04-28   Modified: 2021-02-19  

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