PMC8253998_01
The electrophysiological response during attempted movement versus rest. (A). The changes in HFB (top, 65-175 Hz) and LFB (bottom, 15-28 Hz) for each grid electrode. Electrodes with a red or blue color had a significant change in band-power, whereas electrodes with an insignificant change in band-power are shown in grey; the two excluded electrodes are shown in white. (B) The power spectra of movement (solid line) and rest (dashed line) for a single electrode. (C) The HFB power changes over time, each graph represents one electrode. The black line represents all fingers, whereas the colored lines represent individual fingers. The two vertical dotted lines indicated the cue on- and offset. (D) The HFB power changes over time were averaged across those electrodes that showed a significant increase for a condition (blue: little, red: index, yellow: thumb, black: all fingers). The black trace has a lower amplitude because a different set of significant electrodes contributed to each trace, with more significant, but lower amplitude electrodes contributing to the black trace. (For interpretation of the references to color in this figure legend, the reader is referred to the web version of this article.)
gr1.jpg
PMC8253998_01_gr1.jpg
f0005
An electrode array of 36 circular platinum contacts (AdTech, 6 x 6 electrodes, 2.3 mm exposed diameter, 10 mm inter-electrode distance) embedded in a silastic sheet was surgically placed over the fronto-parietal region, including the sensorimotor cortex (Fig. 1A). The alpha range (8-13 Hz) has been included in supplementary Fig. 1 for the sake of completeness.