Fig. 3.

Effects of anodal tsDCS and c-tsDCS on the H-reflex. A: example of an M wave and H wave recorded from the extensor carpi radialis (ECR) muscle when stimulating the deep radial nerve. Color band represents 95% confidence interval (average of 10 stimuli). The arrow marks the stimulus onset (artifact blanked). Calibration: 1 ms, 5 mV. B and C: the H wave (B) and H-to-M ratio (C) were normalized to the control amplitude condition to correct for between-animal differences. For both B and C, anodal tsDCS produced a significant decrease and c-tsDCS showed a significant increase in the normalized H wave and H-to-M ratio. Values are means ± SE; n = 5 animals. *P < 0.05 by one-way ANOVA followed by post hoc pairwise comparison with the Bonferoni correction.