Representative waveforms of MEP induced by TMS during sustained 30% EMG. MEP amplitude was calculated by averaging peak-to-peak amplitudes. CSP duration was defined as the time from TMS onset to the time of reappearance of an EMG amplitude that was 3-fold the standard deviation of the background EMG noise at rest.
Kojima et al. BMC Neuroscience 2013 14:43 doi:10.1186/1471-2202-14-43