Figure 1

The temporary effects of anodal tDCS on M1 in two advanced PD monkeys (1#, 2#).
(a) Acute modeling process of MPTP administration. (b) Tremor frequency of PD monkeys was dramatically improved by anodal tDCS on M1. (One-way ANOVA, Monkey 1#: **P = 0.0002; Independent Sample Mann-Whitney U Test, Monkey 2#: **P = 3.3 × 10−9). (c) Voluntary locomotion of PD monkeys was obviously increased after anodal tDCS on M1. Values in (b,c) represent mean ±STD.