Fig. 5.

Ensemble average of rectified electromyography (EMG) during silent period determination trials (see methods). Data are from a single participant and are time-locked to transcranial magnetic stimulation (TMS) delivery time (0 ms) in both the extensor carpi radialis (ECR; black) and flexor carpi radialis (FCR; gray) muscles. Note that the ongoing EMG activity is interrupted by a TMS-induced motor evoked potential (MEP; short dashed line) and an ensuing EMG silent period (long dashed line), with EMG activity returning ~150 ms after the onset of the TMS pulse in both muscles.