zation of cortical neurons for neuroprosthetic control J. Neural Eng. 3 162-71 Walden S. Preissl H, Demandt E. Braun C. Birbaunter N, Aensen A and Mehring C 2008 Hand movement direction decoded from MEG and EEG J. Neumsci. 2K 1000-s Wolpaw J R and McFarland D .1 2004 Control of a two-dimensional movement si