1. Graduate School of Human Development and Environment , Kobe University , Kobe , Hyogo , Japan
2. Pain Management Clinic , Shiga University of Medical Science Hospital , Otsu , Shiga , Japan
3. Department of Psychology , McGill University , Montreal , QC , Canada
4. Department of Anesthesiology and Pain Medicine, Juntendo University, Faculty of Medicine , Bunkyo-ku , Tokyo , Japan
5. United Graduate School of Child Development , Osaka University , Suita , Osaka , Japan
6. Graduate School of Human Sciences , Osaka University , Suita , Osaka , Japan
7. Japan Society for the Promotion of Science , Chiyoda-ku , Tokyo , Japan
8. Department of Health Science , Naragakuen University , Nara , Nara , Japan