## 4 Discussion  
According to the purpose of the paper, an evaluation of the effects of five TMS intensities and three muscle conditions on the evoked responses of FDIM using standard statistical data processing and InterCriteria Analysis for the first time for such an experimental study was fulfilled. In previous TMS studies, some relations between motor tasks, TMS intensity, MEP amplitude, and SP, as well as a lack of any trend in MEP latency, were observed [3; 4; 5; 6; 10; 27; 30; 31; 32; 33; 34]. Also, the results showed that MEP amplitudes increase with the increase in TMS intensity, as well as SP durations increase when TMS intensity and MEP amplitude sizes increase. The dependencies mentioned above raise the a priori hypotheses that will be confirmed or revised in this study. ICrA finds pairs of criteria as in positive (PsCo) or negative consonance (NgCo), as in dissonance for the ten investigated subjects, according to the results obtained in case study 1. Figure 4 summarizes the number of consonance relations for each pair of criteria at the three muscle conditions. The outcomes presented in Tables 2-4 and Figure 4 show dependence in PsCo for TMS intensity and amplitude of MEPs pairs as at relaxed condition (TMS-R_Ampl), as well as at abduction (TMS-A_Ampl) and co-contraction (TMS-C_Ampl). There is only one exception for the TMS-R_Ampl pair, in dissonance, namely, for S4. While for the TMS-A_Ampl and TMS-C_Ampl pairs, the results of two subjects (S1 and S2) differ from the others, falling into dissonance. Standard used statistic data processing [5; 32] did not give considerable changes between pairs of measured MEP amplitudes (100-110%, 110-120%, 120-130%, 130-140% RMT) at all three muscle conditions. Though there were stable trends for the growth of MEP amplitudes with the increase in TMS intensity (Figure 3). It is known that MEP amplitudes are directly affected by the excitability of the motor cortex [25; 26; 27; 33; 34; 35; 36; 37]. Results of ICrA demonstrate the general dependence of MEP amplitude size on the increase in TMS intensity known from other studies [2; 3; 4; 5; 10; 25; 27]. It is worth noting that ICrA marked the results of three subjects with specific recruitment curves that were not pointed out by conventional data processing. The recruitment curve of S4 at the relaxed condition had a plateau with a peak at 120% RMT, which was different from the other subjects, who had linear curves. MEP amplitudes of S4 increased from 100% to 120% RMT stimulus intensity, but after 120% RMT in contrast to other subjects, MEP amplitudes decreased (Figure 5a). Results of S1 also demonstrate non-linear curves. Recruitment curves of S1 have a plateau in 130% RMT at abduction and in 120% RMT at co-contraction (Figure 5b). Individual motor threshold at relaxed condition of S2 was very high (80% of maximum stimulator output). The curve had three stimulus intensities instead of five because we reached the maximal stimulator output before 130% of  
Figure 4: Number of consonance relations for each pair of criteria at the three muscle conditions. the individual RMT. The curve at abduction was not linear or with a plateau, and the curve at co-contraction had a plateau in 110% RMT (Figure 5c), although the subject performed the tasks correctly. We assume that the dissonance exceptions in ICrA results for S1, S2, and S4 pointed to individual subject characteristics of EMG activity and responses to TMS, which were not marked by the conventional statistics. However, it should be mentioned that TMS intensity is directly related to the MEP amplitude but does not directly reflect the absence of muscular activity despite voluntary contraction. Going deeper into details, the results summarized in Tables 3 and 4, and partially interpreted in Figure 4, show additional consonance relations during the abduction and co-contraction. The dependences are found for the pairs formed from the silent periods and TMS intensity (TMS-A_SP and TMS-C_SP), as well as the silent periods and amplitude of MEPs (A_Ampl-A_SP and C_Ampl-C_SP).