DopamineNeuronsReceptors, Dopamine D2Dopaminergic NeuronsReceptors, Dopamine D1MesencephalonDopamine AntagonistsDopamine AgonistsVentral Tegmental AreaReceptors, DopamineReceptors, Dopamine D3Dopamine Plasma Membrane Transport ProteinsSubstantia NigraDopamine AgentsTyrosine 3-MonooxygenaseNeurons, AfferentCorpus StriatumDopamine Uptake InhibitorsMotor NeuronsOxidopamineAction PotentialsReceptors, Dopamine D5Rats, Sprague-DawleyQuinpiroleRewardParkinsonian DisordersNucleus AccumbensDopamine beta-HydroxylaseAmphetamineBehavior, AnimalApomorphineSynaptic TransmissionNuclear Receptor Subfamily 4, Group A, Member 2CocaineHaloperidolVesicular Monoamine Transport ProteinsPatch-Clamp TechniquesBenzazepinesNeostriatumLevodopaElectric StimulationNeural InhibitionNerve Tissue ProteinsRaclopridegamma-Aminobutyric AcidHabenulaBrainElectrophysiologyMPTP Poisoning1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridineSulpirideParkinson Disease, SecondarySalicylamidesGlutamic AcidMice, Inbred C57BLMicrodialysisSynapsesCells, CulturedHomovanillic AcidAnimals, NewbornTegmentum MesencephaliTime FactorsParkinson DiseaseAnalysis of VarianceMembrane PotentialsRats, WistarNerve DegenerationImmunohistochemistryMotor ActivityExcitatory Postsynaptic PotentialsDose-Response Relationship, DrugConditioning, OperantModels, NeurologicalSerotoninHippocampusAxonsDendritesGABAergic NeuronsReceptors, N-Methyl-D-AspartateAutoreceptorsCerebral CortexMice, KnockoutBasal GangliaExcitatory Amino Acid AntagonistsMethamphetaminePrefrontal CortexBrain Tissue TransplantationGlial Cell Line-Derived Neurotrophic FactorDisease Models, AnimalFetal Tissue TransplantationCaudate NucleusAppetitive BehaviorNeuronal PlasticityMacaca mulattaMedial Forebrain BundleCentral Nervous System StimulantsCell CountNeural PathwaysGABA AntagonistsRats, Long-Evans