P4‐312: DEVELOPMENT OF A NEW INDEX FOR COGNITIVE FUNCTION USING FUNCTIONAL NEAR‐INFRARED SPECTROSCOPY: FNIRS TO EVALUATE THE EFFECT OF THE INTERVENTION IN PRE‐CLINICAL AD AND MCI. (1st July 2006) - Nakamura, Shin; Yomota, Satoshi; Ito, Hitomi; Akinaga, Nobuyuki; Hori, Ayaka; Chinomi, Kenta; Suzuki, Hideaki; Uchida, Kazuhiko; Asada, Takashi