Figure 4

Correlation analysis. Linear correlation analysis between the amount of mean ppMEP changes during iTMS_{1.5 ms} and iTMS_adj [%]. Subjects that experienced the most prominent ppMEP changes during iTMS_{1.5 ms} also had the largest changes in ppMEP during iTMS_adj (r = 0.726; p = 0.005). However, those subjects with only little changes after iTMS_{1.5 ms} were those that showed strong further facilitation after adjusting for the individual I1-wave peak latency (iTMS_adj).