Figure 2.

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