Figure 1: Valproic acid (VA) treatments of the 6-OHDA group decrease the apomorphine-induced contralateral rotations. Values are mean ± SEM from 8–10 animals per group. a. versus SO, ; b. versus SO, ; c. versus 6-OHDA, ; d. versus SO, ; e. versus 6-OHDA, (one-way ANOVA and Newman-Keuls as the post hoc test).