Registry of adolescent and young adult twins in the Tokyo area

Chizuru Shikishima, Juko Ando, Yutaka Ono, Tatsushi Toda, Kimio Yoshimura

研究成果: Review article査読

21 被引用数 (Scopus)


Since established in 1998, the Keio Twin Project (KTP) has been dedicated to investigating genetic and environmental sources contributing to human psychological traits in adolescence and young adulthood. A population-based twin registry was constructed by the KTP through the use of official residential records in the Tokyo area, and to date requests to participate in our research have generated 1040 pairs of twins and triplets of age 14 to 30, forming one of the largest twin registries in Asia. Our comprehensive datasets, obtained through questionnaires, performance tests, and physical measurements, cover a wide range of human traits: personality, psychiatry, mental health, sociality, cognition, and physical index. Demographic variables and environment of upbringing are also sought by twins and by some parents. This extensive information allows us to clarify the genetic and environmental overlap across multiple traits as well as specificities unique to single traits. Adding an evolutionary psychology perspective to the behavior genetics framework is currently being attempted in order to develop a grand theory of human genetics.

ジャーナルTwin Research and Human Genetics
出版ステータスPublished - 2006 12月

ASJC Scopus subject areas

  • 小児科学、周産期医学および子どもの健康
  • 産婦人科学
  • 遺伝学(臨床)


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