1. a Department of Advanced Medical Sciences, Faculty of Medicine, Oita University, 1-1 Idaigaoka, Hasama-machi, Yufu City, Oita 879-5593, Japan
2. b Department of Medical Engineering, Kyushu University of Health and Welfare, 1714-1 Yoshinomachi, Nobeoka City, Miyazaki 882-8508, Japan
3. c Department of Clinical Psychology, Kyushu University of Health and Welfare, 1714-1 Yoshinomachi, Nobeoka City, Miyazaki 882-8508, Japan