Fig. 5.

Maps of decoding accuracy for discriminating the four movement classes by gamma band activity. a–f Position of the 8 × 8 electrode arrays of all six participants visualized with the interpolated colour-encoded decoding accuracy obtained from the individual electrode contacts (circles), superimposed on a standard brain surface. Electrode contacts with significant (corrected for multiple comparisons; q < 0.05) decoding accuracy are marked by circles with thicker black outlines. Dashed lines: borders between cortical areas; solid purple and brown line: course of the central sulcus and lateral sulcus, respectively; solid magenta outline: borders of the ESM-identified mouth sensorimotor cortex. Decoding accuracy within the mouth sensorimotor cortex reached significance in all six participants. ESM electrocortical stimulation mapping