Fig. 3

Analyses of the TEPs. (A) Comparison of the left and right TEPs in healthy controls. The first and second plots show the TEP amplitudes of a representative channel (CP4, located at the red dot) and the GMFP of the TEPs. The third plot is the comparison of left and right PCI-st. (B) Comparison of the contralesional and ipsilesional TEPs in patients with stroke. The first plot of each row is the representative channel located at the right (C4) and left (C3) hemispheres. Yellow rectangles indicate time windows in which significant differences between the ipsilesional and contralesional hemispheres were found. In addition, these differences are shown in four topographies. In the topographies, the black asterisk (*) represents significant clusters found in cluster-based permutation tests. The GMFP and PCI-st plots are also shown. The * in the PCI-st plot represents the values of two patients with slow and local TEPs. (C) Comparison of the TEPs in the patients with stroke and healthy controls. In short, no significant difference was found in any measure. (D) Correlations between the LMFP of the ipsilesional N100 and other measures. Notes: The curve shadings are the means ± standard errors. TEPs: TMS-evoked potentials; GMFP: global mean field power; PCI-st: perturbational complexity index-state transitions; LMFP: local mean field power; RMT: resting motor threshold; MSO: maximal stimulation output; MEP: motor-evoked potential; aMEP: active motor-evoked potential; ICF: intracortical facilitation; SICI: short-interval intracortical inhibition; cSP: cortical silent period