Data are means ± SEM with the number of animals that displayed the behavior per total number of animals in the group given in curly bracket. ANOVA, p N 0.05. No. of ejaculations is
presented as median (1° and 3° quartile) and was analyzed by the non-parametric test of Kruskal–Wallis, p N 0.05. CTR: distilled water; MPH 2.5: methylphenidate 2.5 mg/kg; MPH 5.0:
methylphenidate 5.0 mg/kg.