by the contact pair where at least one of the contacts was landed on M1. This could be the premotor-M1, the M1-M1 or the M1-S1 contact pairs, depending on which pair demonstrated the highest PAC during rest sitting.17 The coordinates of the selected contact pairs covering M1 for each subject are shown in Supplementary Table 1. In addition, the S1-post S1 contact pair was selected as a control channel, which represented signals that were irrelevant to the motor cortex.
