Fig. 4

Immediate effects of anodal tDCS combined with attention on motor learning. White box plots denote anodal tDCS applied while participants paid attention to the target APB muscle. Light gray box plots denote anodal tDCS applied without participants paying attention to the target APB muscle. Dark gray box plots denote sham tDCS applied while participants paid attention to the target APB muscle. Median and interquartile ranges are represented by horizontal lines within boxes and whiskers (representing minimum and maximum values), Asterisks indicate significant differences (P < 0.05) between the baseline and each intervention time point, or within the interventions