MDMA (Ecstasy), oxytocin and vasopressin modulate social preference in rats A role for handling and oxytocin receptors.
In laboratory rats, peripheral administration of the neuropeptides oxytocin (OT) and vasopressin (AVP) induces similar prosocial effects (i.e. increased adjacent lying) to the party drug 3,4-methylenedioxymethamphetamine (MDMA), which are sensitive to vasopressin V