There was a reduction in APP during fast cyclic drawing in the control group (pre 820.34 ± 60, post 619.25 ± 58, P = 0.042) and a trend for a reduction in the dystonia group (pre 759.86 ± 55, post 599.98 ± 57, P = 0.057) only after anodal tDCS (Figure 3E). The gene discussed is APP; the disease is Dystonia.