Figure 4.

Representative neurophysiological traces recorded from the FDI muscle in one subject of the exp_{verbal+conditioning} group (red traces), one subject of the exp_{verbal+conditioning} group (magenta traces), one subject of the control_TENS group (green traces), and one subject of the control_noTENS group (blue traces). The traces represent the average of the 16 trials of the TMS task in the baseline session (top) and in the final session (bottom). TMS pulse was delivered at 0 ms. MEP amplitude is reported in millivolts and CSP duration is shown in milliseconds. As illustrated in the figure, MEP amplitude was higher in the subjects of the experimental groups at the final session compared with baseline, whereas it was lower in the two subjects of the control groups. CSP duration was shorter in the final than in the baseline session in the subject of the exp_{verbal+conditioning} group.