1. Department of Physiology, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
2. Uonuma Institute of Community Medicine, Niigata University Medical Hospital, Niigata, Japan
3. Department of Electronics and Bioinformatics, Meiji University School of Science and Technology, Tokyo, Japan
4. Department of Physiology and Neuroscience, Kanagawa Dental University, Kanagawa, Japan
5. The Research Institute for Time Studies, Yamaguchi University, Yamaguchi, Japan