*Takuji Hayashi¹, Nobuyasu Nakano², Sohei Washino², Akihiko Murai² (1. Grad Sch Edu, Univ of Tokyo, Tokyo, Japan, 2. Hum Aug Res Ctr, Natl Inst Adv Ind Sci & Tech, Chiba, Japan)

*Shigehiro Miyachi¹, Akihisa Kaneko¹, Megumi Totsuka¹, Kanta Nakamura¹, Takeshi Nishimura¹ (1. Center for Evolutional Origins of Human Behavior, Kyoto University)