DopamineMarijuana SmokingMarijuana AbuseReceptors, Dopamine D2Receptors, Dopamine D1Dopamine AgonistsDopamine AntagonistsCannabisReceptors, DopamineReceptors, Dopamine D3Dopamine Plasma Membrane Transport ProteinsDopamine AgentsDronabinolReceptors, Dopamine D5Dopamine Uptake InhibitorsDopamine beta-HydroxylaseCorpus StriatumSubstance-Related DisordersQuinpiroleCannabinoidsBenzazepinesCocaineStreet DrugsRacloprideNucleus AccumbensSulpirideHaloperidolApomorphineSalicylamidesNeostriatumLevodopaSocial ConformityAmphetamineDopaminergic NeuronsHomovanillic AcidTyrosine 3-MonooxygenaseDopamine and cAMP-Regulated Phosphoprotein 32Cocaine-Related DisordersMicrodialysisSpiperoneAlcohol DrinkingAdolescent BehaviorSubstantia NigraRats, Sprague-DawleyVentral Tegmental AreaSubstance Abuse DetectionHallucinogensMotivationOxidopamineErgolinesMesencephalonBehavior, AnimalPeer GroupSubstance Withdrawal SyndromeBrainCaudate Nucleus