≪Organizer Abstract≫
Hikikomori (prolonged social withdrawal) is a psycho-sociological phenomenon, one of its characteristic features is withdrawal from social activities and staying at home almost all days for more than half a year, as a result of various factors (Ministry of Health, Labour and Welfare, 2010). According to the epidemiology research of hikikomori in a Japanese community population, a total of 1.2% had experienced the phenomenon in their lifetime (Koyama et al., 2010). Recently, in the international study, it is reported that individuals with typical hikikomori seem to exist not only in Japan but also in other parts of Asia, Australia and the USA (Kato et al., 2012). In this way, the issue of hikikomori among Japanese has attracted attention from many countries. However, evidenced-based study for hikikomori has not been systematized. The aim of this symposium is to present and discuss current status of research for hikikomori.
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