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A study of human adaptability to regional light conditions

Research Project

Project/Area Number 16207021
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field 生理人類学
Research InstitutionFukuoka Women's University

Principal Investigator

MORITA Takeshi  Fukuoka Women's University, Department of Living Environmental Science, Professor, 人間環境学部, 教授 (20326474)

Co-Investigator(Kenkyū-buntansha) OHNAKA Tadakatsu  Fukuoka Women's University, Department of Living Environmental Science, Professor, 人間環境学部, 教授 (20112716)
UENO Tomoko  Fukuoka Women's University, Department of Living Environmental Science, Research Assistant, 人間環境学部, 助手 (80336966)
YAMAMOTO Akiko  Fukuoka Women's University, Department of Living Environmental Science, Professor, 人間環境学部, 教授 (40105002)
Project Period (FY) 2004 – 2006
Project Status Completed (Fiscal Year 2006)
Budget Amount *help
¥40,430,000 (Direct Cost: ¥31,100,000、Indirect Cost: ¥9,330,000)
Fiscal Year 2006: ¥6,890,000 (Direct Cost: ¥5,300,000、Indirect Cost: ¥1,590,000)
Fiscal Year 2005: ¥18,590,000 (Direct Cost: ¥14,300,000、Indirect Cost: ¥4,290,000)
Fiscal Year 2004: ¥14,950,000 (Direct Cost: ¥11,500,000、Indirect Cost: ¥3,450,000)
Keywordslighting condition / melatonin / seasonality / adaptation / 環境適応能 / 分光分布 / 睡眠-覚醒リズム
Research Abstract

This study was performed from a viewpoint of the human adaptation to environment under the light in different seasons and regions. The daily activity, sleep factors, melatonin rhythms, and lighting conditions (illuminance and wavelength) the participants received in daily life were compared between 4 seasons ( spring, summer, autumn and winter) and 3 regions (Fukuoka/Japan, Poznan/Poland and Hanoi/Vietnam). In Japan, the clear seasonal variation was seen in melatonin rhythm. The peak value of melatonin secretion was higher and the peak time of melatonin secretion seems delay in autumn as compared with other seasons. The seasonal variations of melatonin secretion were not seen in Poland and Vietnam. There were significant differences in peak value and peak time of melatonin secretion among 3 regions. Moreover, there were seasonal variations and regional differences in light conditions the participants received.
This research showed that the human melatonin rhythm has seasonal and regional variation. This is one of the proofs human being has adapted and evolved under natural environment. Therefore, when our living environment becomes more artificial from now on, it is anxious that those artificial environments have serious influences on human biological rhythms. In the case of the design for future living environment, we need to consider the conditions of the artificial environment where human can be healthy and live comfortably with human adaptation ability to environment.

Report

(4 results)
  • 2006 Annual Research Report   Final Research Report Summary
  • 2005 Annual Research Report
  • 2004 Annual Research Report
  • Research Products

    (12 results)

All 2007 2006 2005

All Journal Article (12 results)

  • [Journal Article] Seasonal variations of melatonin secretion in young females under natural and artificial light conditions in Fukuoka, Japan.2007

    • Author(s)
      T.Ueno-Towatari, K.Norimatsu, K.Blazejczyk, H.Tokura, T.Morita
    • Journal Title

      Journal of Physiological anthropology 26

      Pages: 209-215

    • NAID

      110006243414

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Seasonal variations of melatonin secretion in young females under natural and artificial light conditions in Fukuoka, Japan.2007

    • Author(s)
      T.Ueno-Towatari, K.Norimatsu, K.Blazejczyk, H.Tokura, T.Morita
    • Journal Title

      Journal of Physiological Anthropology

      Pages: 219-215

    • NAID

      110006243414

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Seasonl variations of melatonin sacretion in young females under natural and artificial light conditions in Fukuoak/Japan2007

    • Author(s)
      T.Ueno-Towatari, K.norimatsu, K.Blazejczyk, H.Tokura, T.Morita
    • Journal Title

      Journal of Physiological Anthropology 26(2)

      Pages: 209-215

    • Related Report
      2006 Annual Research Report
  • [Journal Article] The effects of the light with different spectral distribution on melatonin secretion during the night-time in humans.2006

    • Author(s)
      T.Morita, M.Sato, H.Noguchi
    • Journal Title

      The 8^<th> International Congress of Physiological Anthropology

      Pages: 7-7

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Seasonal variation of melatonin secretions of young females and light conditions in Fukuoka/Japan.2006

    • Author(s)
      T.Ueno, K.Norimatsu, K.Blazejczyk, H.Tokura, T.Morita
    • Journal Title

      The 8^<th> International Congress of Physiological Anthropology

      Pages: 38-38

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Seasonal variations of melatonin secretion and light condition in Fukuoka/Japan.2006

    • Author(s)
      T.Morita, T.Ueno, K.Norimatsu, K.Blazejczyk, H.Tokura
    • Journal Title

      時間生物学 12

      Pages: 67-67

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] The effects of light with different spectral distribution on melatonin secretion during the night-time in humans.2006

    • Author(s)
      T.Morita, M.Sato, H.Noguchi
    • Journal Title

      The 18th International Congress of Physiological Anthropology 7

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Seasonal variation of melatonin secretions of young females and light conditions in Fukuoka/Japan.2006

    • Author(s)
      T.Ueno, K.Norimatsu, K.Blazejczyk, H.Tokura, T.Morita
    • Journal Title

      The 18th International Congress of Physiological Anthropology 38

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Seasonal variation of melatonin secretion and light condition in Fukuoka/Japan.2006

    • Author(s)
      T.Morita, T.Ueno, K.Norimatsu, K.Blazejczyk, H.Tokura
    • Journal Title

      Journal of Chronobiology 67

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Regional difference in diurnal and seasonal cycles of lighting conditions and melatonin secretion.2005

    • Author(s)
      K.Blazejczyk, T.Morita, K.Wiktorowicz, H.Tokura, D.Kanikowska, T.Ueno, M.Bakowska
    • Journal Title

      17^<th> International Congress of Biometeorology

      Pages: 301-304

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Regional difference in diurnal and seasonal cycles of lighting conditions and melatonin secretion2005

    • Author(s)
      K.Blazejczyk, T.Morita, K.Wiktorowicz, H.Tokura D.Kanikowska, T.Ueno, M.Bakowska
    • Journal Title

      17^<th> International Congress of Biometeorology

      Pages: 301-304

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Regional differences in diurnal and seasonal cycles of lighting conditions and melatonin secretion.2005

    • Author(s)
      K.Blazejczyk
    • Journal Title

      17^<th> International Congress of Biometeorology (発表予定)

    • Related Report
      2004 Annual Research Report

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Published: 2004-04-01   Modified: 2016-04-21  

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