Fig. 8.

Decoding accuracy with the optimal number of sensors and the lowest number of sensors. A: mean (±SD) sensor dropping analysis (SDA) across the 6 subjects. B: decoding accuracy (r) obtained by using the best 34 sensors found by the SDA analysis (black) and by using the highest r among the first best 16 sensors (white) for each subject. Each set of 2 bars (black and white) represents the mean r values (±SD) for each subject. The last set of 2 bars represents the grand average across the subjects for both the optimal condition (black) and the plateau condition (white). C: number of sensors used to compute the r values when the “best” number of sensors was used (black) and up to 16 sensors were used (white) for each subject. Each set of 2 bars (black and white) represents the r values (±SD) of the 6 subjects.