1. Center for Research Collaboration and Support, Dokkyo Medical University School of Medicine, Tochigi, Japan
2. Graduate School of Informatics and Engineering, The University of Electro-Communications, Chofu, Japan
3. Dokkyo Medical University School of Medicine, Tochigi, Japan
4. Department of Psychiatry, Dokkyo Medical University School of Medicine, Tochigi, Japan
5. Department of Radiology, Dokkyo Medical University School of Medicine, Tochigi, Japan
6. Department of Biological Psychiatry and Neuroscience, Dokkyo Medical University School of Medicine, Tochigi, Japan
7. Kawada Hospital, Okayama, Japan