Yan Ning Email: ningyan@mail.ustc.edu.cn Bin An Email: ban@mail.ustc.edu.cn Qiang Chen Email: shawn@mail.ustc.edu.cn Zhaohui Jiang Email: jiangzhh@ustc.edu.cn Huanqing Feng Email: hqfeng@ustc.edu.cn Department of Electronic Science and Technology, University of Science and Technology of China, Hefei, Anhui, China Description: Since the most distinctive motion imagination related character exhibits on channel 39 with the spectral annlysis, we use the program below: 1. Downsample raw data to 100Hz 2. AR spectral estimation with the order 10 at 10-12Hz as character. 3. NearestNeighbor and SVM as the classifer (we use Classification_toolbox and the libsvm2.5 toolbox)