Research keywords (7)：
Personality
, Family relationship
, Interpersonal trust
, Psychosocial adjustment
, Developmental process
, Friendship and peer relationship
, Problem behaviors
Research theme for competitive and other funds (5)：
2001 - A Developmental Study of Inter-personal Trust
A developmental study of peer relationship:from infancy to adolescence
A developmental study of sense of trust
幼児期から青年期にかけての仲間関係の発達に関する研究
対人的信頼感の発達メカニズムに関する研究
Papers (50)：
Takayuki Umezaki, Atsushi Sakai, Kazumi Maeshiro, Hiroto Murohashi. Longitudinal study on development of coping strategies for early childhood conflicts regarding object possession and related factors. Japanese Psychological Research. 2024
Takayuki Umezaki, Atsushi Sakai, Kazumi Maeshiro, Hiroko Maekawa, Yuriko Norisada. Mutual influence of parents and peers in autonomous athletic motivation in early adolescence. Japanese Journal of Sport Psychology. 2023. 50. 2. 76-91
Atsushi Sakai. Current trends, future pespectives, and challenges in personality research in Japan. The Annual Report of Educational Psychology in Japan. 2022. 61. 63-80
Seiji Watanabe, Atsushi Sakai. The reality and potential of digital learning at home: A follow-up studies of junior high school and high school students before and during COVID-19 pandemic in Japan. The Annual Bulletin of NHK Broadcasting Culture Research Institute. 2022. 65. 57-111
Seiji Watanabe, Atsushi Sakai. 【NHK BUNKEN FORUM 2021 Presentations of Research Reports】Media Use in Studying at Home in the “Age of Coronavirus”. The NHK Monthly Report on Broadcast Research. 2021. 71. 8. 48-63
Development: From infancy to adolescence (Chapter 4)
Nakanishiya Shuppan 2023
The family subsystems and the family in the neighbourhood (Chapter 2)
Igaku-Shoin 2023
Psychological support for adults and children with disabilities (Chapter 5) Psychological support for the person with developmental or mental disorders (Chapter 14)
NHK Publishing, Inc. 2021
英国キール大学のRotenberg教授との共同研究が、British Academyによる研究助成(Small Research Grant)を受けた。
2008 -
Awards (7)：
2024/09 - Japanese Society of Child Science Best poster presentation award at the 20th the annual meeting of Japanese Society of Child Science. Aomori, Japan. Family economic status, children’s friendship and self-esteem: The moderating role of third places.
2023/09 - Japanese Society of Child Science Poster presentation award at the 19th the annual meeting of Japanese Society of Child Science. Tokyo, Japan. The effect of research experiences as the collaborative learning on the academic attitudes of higher achievers.
2017/10 - Japanese Society of Child Science Poster presentation award at the 14th the annual meeting of Japanese Society of Child Science. Okayama, Japan. Longitudinal study on the development of children’s sociability 16: The relationships between physical exercises and cognitive in preschool children.
2016/09 - Japan Society of Personality Psychology The 1st Japan Society of Personality Psychology Award Children’s trust belief in peer and loneliness at elementary school: An investigation of the effect of interaction between trust belief in peer and in teacher or parents
2009/08 - KIDS DESIGN ASSOCIATION The 3rd KIDS DESIGN AWARDS, the section of the architecture and spatial design. Familin’ Heim
2007/08 - Japan Society of Personality Psychology Poster presentation award at the 16th the annual meeting of Japan Society of Personality Psychology. Hokkaido, Japan. Genetic and environmental influences on children’s depressive symptoms in childhood and puberty.
2001/07 - International Society for Twin Studies Poster presentation award at the 10th International Congress on Twin Studies. London, UK. Genetic and environmental influences on self-perceptions in childhood and puberty.
