Fig. 3: Densitometric of autoradiographs representing [³H]SCH 23390 binding in the striatum. D₁ binding was significantly increased after repeated electroconvulsive therapy (ECS) treatment in both the dorsal and ventral striatum (*p < 0.04). Values are mean ± SEM, n = 9–10 animals per group. SEM = standard error of the mean.