Social behavior of juvenile rats after in utero exposure to morphine: dose–time–effect relationship

Niesink, Raymond J.M.; van Buren-van Duinkerken, Liesbeth; van Ree, Jan M.

doi:10.1016/s0028-3908(99)00050-7

Social behavior of juvenile rats after in utero exposure to morphine: dose–time–effect relationship

In the present study, the effects of morphine exposure in utero on social behavior in juvenile male rats was investigated. Pinning, a measure for play behavior, and social grooming of the offspring were measured at postnatal day 21. The subjects were offspring of Wistar rat dams given sc. injecti…