Fig. 2

Transcranial magnetic stimulation (TMS) measurements before (baseline) real and sham tDCS. The data were recorded from paretic and non-dominant left extensor carpi radialis muscles in stroke survivors (n = 18) and healthy controls (n = 14), respectively. Mean and standard error across individuals is shown. a Resting and active motor threshold (rMT, aMT, % of maximum stimulator output). b Motor evoked potential (MEP). c Ipsilateral silent period (iSP). d Short-interval intracortical inhibition (SICI). Measures with statistical significance are indicated as: *p < 0.05, **p < 0.01, ***p < 0.001