Figure 2.

Average sensory evoked potentials (SEPs) for the sensory threshold (ST), motor threshold (MT), and 150% motor threshold (MT150) before training (A) and after training (B) for the left hemisphere over the Cz electrode (right leg). Before training, the ST and MT were at the maximum stimulator output; therefore, no further conditions were tested. After training, data for all conditions could be collected. The amplitude of the negative response at 50 milliseconds (vertical gray dotted line) was larger for the MT and MT150 than for the ST after training.