Fig. 5.
Top left: cortex with 2 electrode grids (1 high density, 1 low density) with 3 strips. The high-density grid over the motor cortex is used for robotic hand control. Bottom left: computer screen giving the instruction to the user, who is doing the hand pose and robotic hand controlled via ECoG. Right: weighting of the high-density grid to maximize the difference between the 3 hand poses (fist, peace sign, fingers straight). Experiments were performed with Dr. K. Kamada from Asahikawa Medical University, Japan.