Figure 1: This figure shows the dose-response curves to morphine (0.5-7.5 mg/kg) in offspring born of saline-treated mothers. The scores were calculated according to the protocol detailed in material and method section and shown as mean ± SEM. ^*P < 0.05, ^**P < 0.01, ^***P <0.001, ^#P < 0.05, ^##P < 0.01, ^###P < 0.001 are differences to controls according to post hoc analysis