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