Gesture Decoding Using ECoG Signals from Human Sensorimotor Cortex: A Pilot Study

Figure 6

Topographies of decoding performance using neighboring 4 channels and the decoding performance comparison of different channel selection strategies (neighboring 4, neighboring 9, and greedy) of all participants. (a) The color of each cell indicates the decoding performance using the recordings from neighboring 4 channels. The color bars give the scale of decoding performance. The white dashed outline marks out the channels with the highest decoding performance (marked with a white dashed circle), and the red dashed outline marks out the neighboring 9 channels. Black dash line represents the central sulcus. (M = motor, S = sensory). (b) The decoding performance with optimal channel subsets using different channel selection strategies of all the three participants.

(a)

(b)