1. a Graduate School of Natural Sciences and Technology , Kanazawa University , Kanazawa, Japan
2. b Department of Adult Mental Health, National Institute of Mental Health , National Center of Neurology and Psychiatry , Tokyo, Japan
3. c Graduate School of Science and Technology , Chiba University , Chiba, Japan
4. d Department of Business Administration , Kinjo College , Kasama, Matto, Japan
5. e Oxford BioHorizons Ltd. , Berkhamsted, Hertfordshire, UK
6. f Department of Automatic Measurement and Control , Harbin, China