Figure 2. Electrode locations.

(A) Standard brain showing locations of recording electrodes that were included in the analysis (N=1593, across 19 patients).

(B) Standard brain showing locations of sites that showed task-engagement, as determined by a significant decrease of alpha activity vs. baseline (N=621, across 19 patients). Note that the few electrode contacts that appear to be above the cortical surface are likely artefactually displaced due to small patient-patient registration errors.