Dear Dr. Blankertz, This is the description of our method for data IVc: Our method was based on ERD identification in Independent Components (IC) related to Left Hand and Foot movement respectively. The training data set was used to identify ICs related to the specific motor imagery task. Event Related Desynchronization (ERD) in the Alpha and Beta bands in these ICs, were used to train a Committee Neural Network classifier. Contributor Bo Hong, Ph.D. Co-Contributor Acharya, Soumyadipta M.D. Ph.D. Student acharya@jhu.edu Nitish V. Thakor Ph.D., Professor nthakor@bme.jhu.edu Biomedical Engineering Department Johns Hopkins School of Medicine Tel 1-410-614-5905(O) Fax 1-410-955-0549 Traylor Building 710A 720 Rutland Avenue Baltimore, MD 21205 hongbo@bme.jhu.edu or hongbo@tsinghua.edu.cn