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Fig. 3 | Journal of NeuroEngineering and Rehabilitation

Fig. 3

From: Transcranial direct-current stimulation combined with attention increases cortical excitability and improves motor learning in healthy volunteers

Fig. 3

The effects of sham tDCS combined with attention on motor evoked potentials (MEPs). MEP amplitudes at the first dorsal interosseous (FDI) were normalized to the baseline amplitude (%) for each condition. White box plots denote anodal tDCS applied while participants paid attention to the target FDI muscle. Light gray box plots denote sham tDCS applied while participants paid attention to the target FDI muscle. Dark gray box plots denote sham tDCS applied while participants paid attention to the sound. Median and interquartile ranges are represented by horizontal lines within boxes and whiskers (representing minimum and maximum values), respectively. Asterisks indicate significant differences (P < 0.05) between anodal tDCS combined with attention to the target muscle and sham tDCS combined with attention to the target muscle. No significant difference was observed between sham tDCS conditions (P > 0.05)

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