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Physiology and Psychology of Humidity and Wetness

Research Project

Project/Area Number 19H01128
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Review Section Medium-sized Section 61:Human informatics and related fields
Research InstitutionWaseda University

Principal Investigator

NAGASHIMA KEI  早稲田大学, 人間科学学術院, 教授 (40275194)

Co-Investigator(Kenkyū-buntansha) 上條 義一郎  獨協医科大学, 医学部, 教授 (40372510)
中田 大貴  奈良女子大学, 工学系, 教授 (40571732)
眞野 博彰  国立研究開発法人情報通信研究機構, 脳情報通信融合研究センター脳情報通信融合研究室, 研究員 (10571581)
丸井 朱里  早稲田大学, 人間科学学術院, 助教 (50824554)
Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥38,090,000 (Direct Cost: ¥29,300,000、Indirect Cost: ¥8,790,000)
Fiscal Year 2022: ¥6,890,000 (Direct Cost: ¥5,300,000、Indirect Cost: ¥1,590,000)
Fiscal Year 2021: ¥7,280,000 (Direct Cost: ¥5,600,000、Indirect Cost: ¥1,680,000)
Fiscal Year 2020: ¥6,890,000 (Direct Cost: ¥5,300,000、Indirect Cost: ¥1,590,000)
Fiscal Year 2019: ¥17,030,000 (Direct Cost: ¥13,100,000、Indirect Cost: ¥3,930,000)
Keywords濡れ感 / むれ感 / 温熱的快適感 / 湿度 / 含水量 / 温度感覚 / 感覚神経 / 皮膚温度 / 温熱的快不快感 / 自律性体温調節 / 皮膚交感神経活動 / 温熱感覚 / 蒸れ感 / 上気道 / 気道温度 / 露点温度 / マスク / 熱中症 / fMRI / 交感神経活動 / 発汗 / 体温調節 / 快適環境 / 濡れセンサー / 衣服素材 / ぬれ感 / 自律神経
Outline of Research at the Start

研究では、行動実験と機能的脳画像法(fMRI)を用いて、①濡れ感に関わる脳部位を同定し、②温冷感と圧覚の2つの異なる感覚から形成されると推察される濡れ感を、脳内情報伝達解析により明らかにする.さらに、③濡れ感により温熱的不快感が生じるメカニズムを明らかにする.④生理学的、電気生理学的手法を用いて、皮膚の濡れによる発汗抑制のメカニズムを明らかにする.

Outline of Final Research Achievements

The study investigated wet perception modulation by thermal and wetness stimuli. Participants assessed wetness among filter papers with varying water content (0.00-18.75 microgram/cm2) at 30°C, and wet perception increased with water content, plateauing at 11.25 microgram/cm2 (68.1 ± 25.5%). Evaluation at temperatures from 20°C to 40°C revealed wet perception increased with decreasing temperature below 30°C but plateaued above it. Higher water content consistently enhanced wet perception at 30°C, while temperature effects were notable below 30°C, associated with cold sensation. Above 30°C, no clear relationship between temperature and wet perception was found, indicating influence of thermal cues, especially cold sensation, on wetness perception.

Academic Significance and Societal Importance of the Research Achievements

湿度感覚や濡れ感のメカニズムは未だに明らかではない部分が多い。この研究は、湿潤感覚に影響を与える要因として触知する物質の含水量と温度の関係をを明らかにする学術的意義を持っている。研究では、両者が湿潤感覚に影響を与えることが示され、かつこの関係を定量的に明らかにすることに成功した。生体の触覚のうち、濡れ感覚に関する基本的な理解を深めるだけでなく、人工皮膚や感覚代替デバイスの開発にも貢献する可能性が示唆された。また、湿潤感覚の研究は、医療分野での治療法や製品開発にも応用される可能性があり、快適性や機能性の向上に寄与することが期待される。

Report

(4 results)
  • 2023 Final Research Report ( PDF )
  • 2020 Annual Research Report
  • 2019 Comments on the Screening Results   Annual Research Report
  • Research Products

    (23 results)

All 2021 2020 2019 Other

All Int'l Joint Research (1 results) Journal Article (6 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 6 results,  Open Access: 4 results) Presentation (11 results) (of which Invited: 1 results) Book (3 results) Remarks (2 results)

  • [Int'l Joint Research] ラフバラ大学/エルゴノミクス研究所(英国)

    • Related Report
      2019 Annual Research Report
  • [Journal Article] Influence of exogenous and endogenous estrogen on thermoregulatory responses to mild heat and the interaction with light and dark phases2020

    • Author(s)
      Marui Shuri、Masuda Yuta、Kato Issei、Nagashima Kei
    • Journal Title

      The Journal of Physiological Sciences

      Volume: 70 Issue: 1 Pages: 56-56

    • DOI

      10.1186/s12576-020-00782-x

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Factors affecting an increase in core body temperature and heat tolerance during hot water immersion2020

    • Author(s)
      Yuta Masuda, Issei Kato,Kei Nagashima
    • Journal Title

      Journal of Physical Fitness and Sports Medicine

      Volume: 10 Pages: 1-11

    • NAID

      130008088895

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Muscle-derived SDF-1α/CXCL12 modulates endothelial cell proliferation but not exercise training-induced angiogenesis2019

    • Author(s)
      Mami Yamada, Chihiro Hokazono, Ken Tokizawa, Shuri Marui, Masahiro Iwata, Vitor A. Lira, Katsuhiko Suzuki, Shinji Miura, Kei Nagashima, Mitsuharu Okutsu
    • Journal Title

      American Journal of Physiology. Regulatory, Integrative and Comparative Physiology

      Volume: 317 Issue: 6 Pages: R770-R779

    • DOI

      10.1152/ajpregu.00155.2019

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Assessment of brain mechanisms involved in the processes of thermal sensation, pleasantness/unpleasantness, and evaluation2019

    • Author(s)
      Aizawa Yuka、Harada Tokiko、Nakata Hiroki、Tsunakawa Mizuki、Sadato Norihiro、Nagashima Kei
    • Journal Title

      IBRO Reports

      Volume: 6 Pages: 54-63

    • DOI

      10.1016/j.ibror.2019.01.003

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Thermal and cardiovascular responses and thermal sensation during hot-water bathing and the influence of room temperature2019

    • Author(s)
      Masuda Yuta、Marui Shuri、Kato Issei、Fujiki Mayuka、Nakada Mariko、Nagashima Kei
    • Journal Title

      Journal of Thermal Biology

      Volume: 82 Pages: 83-89

    • DOI

      10.1016/j.jtherbio.2019.03.014

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 体温調節の脳機構と加齢による変容ー特に温度感覚と行動性体温調節の観点からー2019

    • Author(s)
      永島計
    • Journal Title

      基礎老化研究

      Volume: 43 Pages: 17-22

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Presentation] Fundamental Research on Behavioral Thermoregulation and Thermal Perception -Using a novel cross-shaped behavioral thermoregulatory system-2021

    • Author(s)
      Yuta Mausda, Riho Sakai, Kei Nagashima
    • Organizer
      第98回日本生理学会大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Effect of elevated core body temperature on heart rate recovery during exercise interruption2021

    • Author(s)
      第98回日本生理学会大会
    • Organizer
      第98回日本生理学会大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 湿度感覚のメカニズムの探索2021

    • Author(s)
      小林美沙, 加藤一聖, 永島計
    • Organizer
      第16回日本感性工学会春季大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 温度及び水分量がヒトの濡れ感覚知覚に及ぼす影響2021

    • Author(s)
      加藤一聖, 増田雄太, 丸井朱里, 永島 計
    • Organizer
      第16回日本感性工学会春季大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 入浴時の温熱負荷の検討2021

    • Author(s)
      増田雄太, 丸井朱里, 加藤一聖, 永島計
    • Organizer
      新しい十字形マウス行動性体温調節評価システムの開発とその有効性の検証
    • Related Report
      2020 Annual Research Report
  • [Presentation] 暑熱下運動中のマスク着用が体温調節へ及ぼす影響2020

    • Author(s)
      加藤一聖, 山本晏未, 増田雄太, 丸井朱里, 永島計
    • Organizer
      第59回日本生気象学会大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 加湿冷却装置の生理学的冷却効果の検討2020

    • Author(s)
      増田雄太, 加藤一聖, 丸井朱里, 唐木幸音, 永島計
    • Organizer
      第57回生気象学会大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Thermal perception of heat may be suppressed during heat acclimation, which augments spontaneous exercise in mice2020

    • Author(s)
      Yuta Masuda, Kei Nagashima
    • Organizer
      8th International Conference on the Physiology and Pharmacology of Temperature Regulation
    • Related Report
      2020 Annual Research Report
  • [Presentation] 運動中のマスク着用の有無が深部体温および身体周囲環境に及ぼす影響2020

    • Author(s)
      加藤一聖, 増田雄太, 丸井朱里, 永島計
    • Organizer
      温熱生理研究会
    • Related Report
      2020 Annual Research Report
  • [Presentation] ホールボディから見える体温調節研究の面白さ2019

    • Author(s)
      永島計
    • Organizer
      第97回日本生理学会大会
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] 暑熱耐性の再考2019

    • Author(s)
      永島計
    • Organizer
      第97回日本生理学会大会
    • Related Report
      2019 Annual Research Report
  • [Book] 体温の「なぜ?」がわかる生理学―からだで感じる・考える・理解する2021

    • Author(s)
      永島 計
    • Total Pages
      179
    • Publisher
      杏林書院
    • ISBN
      9784764412194
    • Related Report
      2020 Annual Research Report
  • [Book] Newton 別冊 健康の科学知識2020

    • Author(s)
      永島 計
    • Total Pages
      176
    • Publisher
      ニュートンプレス
    • ISBN
      9784315523096
    • Related Report
      2020 Annual Research Report
  • [Book] 40℃超えの日本列島でヒトは生きていけるのか2019

    • Author(s)
      永島 計
    • Total Pages
      200
    • Publisher
      化学同人
    • ISBN
      9784759816822
    • Related Report
      2019 Annual Research Report
  • [Remarks] 早稲田大学 体温•体液研究室HP

    • Related Report
      2020 Annual Research Report
  • [Remarks] 早稲田大学 体温•体液研究室ホームページ

    • Related Report
      2019 Annual Research Report

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

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