highly significantp < 0.001
Male SD Rats In active lever pressing, RM ANOVA revealed a highly significant effect of the OBX model (F 1,20 = 29.48, p < 0.001), feeding status (F 1,20 = 5.69, p = 0.027), day (F 9,180 = 45.52, p < 0.001) and day*OBX model interaction (F 9,180 = 10.54, p < 0.001).