*Taeko HARADA¹, Toshiki Iwabuchi¹, Chikako Nakayasu¹, Mikihiro Shimizu², Ryuji Nakahara³, Kenji Tsuchiya¹, Atsushi Senju¹, Yoko Hoshi⁴ (1. Research Center for Child Mental Development, Hamamatsu University School of Medicine, Hamamatsu, Japan, 2. Center for Clinical Research, Hamamatsu University School of Medicine, Hamamatsu, Japan, 3. Early Childhood Education, Okazaki Women’s Junior College, Aichi, Japan., 4. Department of Biophotonics Innovation, Hamamatsu University School of Medicine, Hamamatsu, Japan)

*Nobuhiro Nakai^1,2, Yukiko Sekine², Masaaki Sato³, Toru Takumi^1,2 (1. Grad Sch Med, Kobe Univ, Kobe, Japan, 2. RIKEN BSI, Saitama, Japan, 3. Fac Med, Hokkaido Univ, Sapporo, Japan)