*Hiroyuki Muraoka1, Ochi Shinichiro2, Yasushi Kawamata3, Daisuke Koshiyama4, Toru Horinouchi5 (1. Department of Psychiatry, School of Medicine, Kitasato University, 2. Department of Neuropsychiatry, Ehime University Graduate School of Medicine, 3. Department of Psychiatry, Dokkyo Medical University School of Medicine, 4. Department of Neuropsychiatry, Graduate School of Medicine, The University of Tokyo, 5. Department of Psychiatry, Hokkaido University Graduate School of Medicine)