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  • Title: Effects of phenobarbital given to pregnant mice on behavior of mature offspring.
    Author: Middaugh LD, Santos CA, Zemp JW.
    Journal: Dev Psychobiol; 1975 Jul; 8(4):305-13. PubMed ID: 1225697.
    Abstract:
    Mature offspring of C57BL/6J mice (Mus musculus) injected daily with phenobarbital (40 mg/kg) for the last third of pregnancy differed from saline and untreated control animals on 3 measures of behavior. Offspring of phenobarbital treated animals had higher locomotor scores than controls during an open field activity test at 75 days of age. Male offspring were also tested on a 1-trial passive avoidance task and treated animals were found to be deficient. Finally, female offspring responded less than controls on fixed ratio schedules of reinforcement. The behavioral changes suggest that offspring of mice injected with phenobarbital during pregnancy are less responsive to the stimuli in their environment which maintain behavior.
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