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1999 Fiscal Year Final Research Report Summary

An analysis of the relationship between changes in puberty and developmental psychology

Research Project

Project/Area Number 10610111
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 教育・社会系心理学
Research InstitutionOsaka University

Principal Investigator

HINOBAYASHI Toshihiko  Faculty of Human Sciences, Osaka University, Professor, 人間科学部, 教授 (80156611)

Co-Investigator(Kenkyū-buntansha) MINAMI Tetsuhiro  Faculty of Human Sciences, Osaka University, Professor, 人間科学部, 教授 (40030043)
Project Period (FY) 1998 – 1999
Keywordspuberty / health / okninawa / biopsychology / menarche
Research Abstract

The overall purpose of our study is to examine how biology and psychosocial factors interact to affect the development in puberty. The present study aims to investigate the sexual and psychological development in 73,309 Japanese females, from 10years to 15years old. The menarche stands as our primary indicator of the onset of sexual maturity. Each mean menarcheal age of Japanese females has been estimated by probit analysis from status quo data.
Once the secular trend of Japanese for earlier appearance of menarche extinguished in 1980s. But the mean menarcheal age in Japan is decreasing at present. From our data, the new secular trend in sexual maturity is cotinuing in Japan. Specially, the mean menarcheal age of Okinawa prefecture is under12years old. And the development of the females in Okinawa were outstanding in psychosocial and biological points. It may be said, that the rich interplay of biological and psychosocial influences on development is especially prominent in Okinawa.
These facts lead to the coclusion that the context of development are changing in Japan. Our research found that the parent-child relationship can affect the time of puberty in female. With negative relationship the mean menarcheal age tends to decrease. And, those who eat breakfast less frequently the mean menarcheal age tends to decrease. Then the development of feminity can affect the time of puberty. Negative sexual identity tends to decrease the time of puberty.
The secular trend has been attributed to general improvements in health and nutrition. Such changes, however, can be markedly affected by psychosocial stress through a general decline in health. In conclusion, it can been seen that the change of puberty affects the psychosocial development and vice versa the psychosocial factors affect the time of puberty.

  • Research Products

    (12 results)

All Other

All Publications (12 results)

  • [Publications] 日野林俊彦: "女子性成熟低年齢化の再加速現象"日本性教育アカデミー会報. 13号. 2-3 (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 日野林俊彦: "女子初潮年齢の再低年齢化の続行について全国無作為抽出による73,309人の調査をもとに-"日本心理学会第62回大会発表論文集. 215 (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 日野林俊彦: "性成熟と健康習慣-初潮年齢と朝食習慣の関わりについて-"日本発達心理学会第10回大会発表論文集. 272 (1999)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 日野林俊彦: "沖縄県における思春期発達"日本心理学会第63回大会発表論文集. 883 (1999)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 日野林俊彦: "初潮と性別の受容-10年間の時代変化とともに-"日本発達心理学会第11回大会発表論文集. 253 (2000)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 日野林俊彦: "女子の思春期変化について-第9回全国初潮調査の結果を踏まえて-"日本性教育学会誌・性と教育. Vol.14・15(印刷中).

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Toshihiko Hinobayashi: "The Reappearance of Secular Trend for Earlier Appearance of Menarche in Japan"The Report of the Japanese Academy for Sex Education. Vol.13. 2-3 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Toshihiko Hinobayashi: "The New Secular Trend of Japanese for Earlier Appearance of Menarche"Proceedings of the62th Congress of the Japanese Psychological Association. 215 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Toshihiko Hinobayashi: "The Relationship between Fequencyof Eating Breakfast and the Time of Menarche."Proceedings of the 10th Congress of the Japan Society of Developmental Psychoogy. 272 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Toshihiko Hinobayashi: "The Development of the Puberty in Okinawa"Proceedings of the 63th Congress of the Japanese Psychological association.. 883 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Toshihiko Hinobayashi: "The Relationship between Menarche and Sexual Identity"Proceedings of the 62th Congress of the Japan Society of Developmental Psychoogy.. 253 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Toshihiko Hinobayashi: "The Change of Puberty in Japanese females"Sexality & Education. vol.14・15 (in print).

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 2001-10-23  

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