○Mariko Sunahara^1,2, Alain Rios², Masanori Kawabata², Hidehiko Takahashi^1,3, Yoshikazu Isomura^2,3 (1. Department of Psychiatry and Behavioral Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 2. Department of Physiology and Cell Biology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 3. Center for Brain Integration Research, Tokyo Medical and Dental University)