Dimensionality Reduction and Channel Selection of Motor Imagery Electroencephalographic Data

Figure 1

EEG electrode setup, some labels corresponding to positions in the international 10-20 system are marked. Electrodes are numbered from 1 to 22 in ascending order from top to bottom and left to right. The three subsets of electrodes used for channel selection are (1) 2–21, (2) 2–18, and (3) 2, 4, 6–14, 16, 18.