CocaineCocaine-Related DisordersDopamine Uptake InhibitorsCrack CocaineSelf AdministrationConditioning, OperantNucleus AccumbensReinforcement (Psychology)Dose-Response Relationship, DrugBehavior, AddictiveBehavior, AnimalDrug-Seeking BehaviorReinforcement ScheduleRats, Sprague-DawleyBenztropineExtinction, PsychologicalMotor ActivityDopamine Plasma Membrane Transport ProteinsDopamineStructure-Activity RelationshipHeroinNarcoticsSubstance Withdrawal SyndromeRewardButyrylcholinesteraseSubstance Abuse DetectionStreet DrugsDopamine AntagonistsSubstance-Related DisordersDopamine AgonistsReceptors, Dopamine D2Time FactorsHeroin DependenceMolecular StructureKineticsVentral Tegmental AreaRats, Long-EvansCorpus StriatumDrug InteractionsSaimiriConditioning (Psychology)MicrodialysisCuesAnalysis of VarianceStereoisomerismReceptors, Dopamine D3Prenatal Exposure Delayed EffectsBrainTropanesMacaca mulattaMethamphetamineInjections, IntravenousMethadoneGas Chromatography-Mass SpectrometryOpioid-Related DisordersDextroamphetamineAmphetamineNucleosidesQuinpiroleBenzazepinesModels, MolecularDiscrimination LearningCarboxylic Ester HydrolasesMolecular Sequence DataMotivationFlupenthixolRats, WistarDisulfiramChoice BehaviorLocomotionStereotyped BehaviorBinding, Competitive