“…The amplitude of the recorded signal is a function of the frequency and temporal coherence of the neural activity that controls that specific muscle [3]. Despite the usefulness of the abovementioned parameters in studying the function and dysfunction of the neural pathways at rest and during activity [4][5][6][7][8], the variability of the MEP elicited by TMS or the "M-jiggle" [9][10][11], defined as the variation of the size of the evoked potential from one stimulus to the next, has precluded its wider use in diverse settings.…”