Fig. 3From: Prolonged exposure to a low-dose of bisphenol A increases spontaneous motor activity in adult male ratsEffects of BPA on the sum of total spontaneous motor activity in the whole day (a), the light phase (b), and the dark phase (c) during the 5-day experimental period. Values are the mean ± SEM for seven rats. *p < 0.05, **p < 0.01 (compared with the values of the vehicle-treated group by the Mann–Whitney U test)Back to article page