Tamaki Saitō

Tamaki Saitō (斎藤 環, Saitō Tamaki^?, born September 24, 1961) is a Japanese psychologist and critic. He specializes in the psychiatry of Puberty and Adolescence. Saitō is Director of Medical Service at Sofukai Sasaki Hospital in Funabashi, Chiba.

Saitō is notable for his study of hikikomori, a term he coined; he is internationally recognized as Japan's leading hikikomori expert.

Saito was born in Kitakami, Iwate. In 1980 he graduated from Morioka First High School and matriculated into the University of Tsukuba the same year; graduating in 1986 from the medical faculty with a specialization in Environmental Ecology. In 1990 he completed a doctoral course in medicine under the leadership of Hiroshi Inamura.

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