Table 1.

Summary of the beta-change time-points across the participant cohort (n = 22), showing mean (SD) latencies and definitions of selection.

Stimulation Point	Time-Point (ms): Mean (SD)	Definition
Response termination	565.7 (±66.5)	During beta ERD, following response termination and after EMG activity returns to within 0.5 SD of baseline.
Early PMBR	1025.9 (±264.1)	Ascending slope at half the maximal amplitude of the PMBR.
Peak PMBR	1476.8 (±445.5)	Time-point of maximal PMBR amplitude.
Late PMBR	4186.4 (±674.9)	Descending slope immediately prior to return to mean baseline.
Active rest period	9500 (0)	500 ms prior to the end of each trial.