Fig. 1

Top panels: example of averaged corticomotor response (MEP: motor evoked potential; averaging of 10 responses) evoked in left gastrocnemius muscle (stimulation of right motor cortex) at baseline (A, T0 min), 10 min after application of low frequency electrical stimulation of the motor cortex (B: post-LFSMC; duration of LFSMC: 10 min from T0 to T10 min), 45 min after baseline recording when the excitability of the motor cortex has returned to basal state (C: T45 min), after application of combined cDCS (cathodal DCS of the cerebellum) and LFSMC from T50 to T60 min (D: T70 min). Bottom panels: superimposition of averaged unconditioned MEPs (thin traces) and averaged MEPs with a conditioning stimulus (thick traces) during the paradigm of afferent facilitation (AF). Values of AF are given near the corresponding duos of traces