DopamineAutoreceptorsNeuronsReceptors, Dopamine D2Dopamine AgonistsDopamine AntagonistsDopaminergic NeuronsReceptors, Dopamine D1Receptors, DopamineMesencephalonReceptors, Dopamine D3Ventral Tegmental AreaSubstantia NigraQuinpiroleDopamine Plasma Membrane Transport ProteinsReceptor, Serotonin, 5-HT1ADopamine AgentsCorpus StriatumRaphe NucleiTyrosine 3-MonooxygenaseReceptor, Serotonin, 5-HT1BReceptors, Serotonin, 5-HT1Neurons, AfferentRats, Sprague-DawleyDopamine Uptake InhibitorsSerotonergic NeuronsSerotoninMotor NeuronsApomorphine8-Hydroxy-2-(di-n-propylamino)tetralinNucleus AccumbensSerotonin 5-HT1 Receptor AgonistsMicrodialysisHaloperidolReceptors, SerotoninOxidopamineSynaptic TransmissionRacloprideAction PotentialsSerotonin Receptor AgonistsBehavior, AnimalSerotonin AntagonistsReceptors, Dopamine D5Electric StimulationTegmentum MesencephaliRewardParkinsonian DisordersElectrophysiologyDopamine beta-HydroxylasePatch-Clamp TechniquesMethiothepinBrainAmphetamineParoxetineNuclear Receptor Subfamily 4, Group A, Member 2CocaineSerotonin Uptake InhibitorsSerotonin 5-HT1 Receptor AntagonistsSynapsesVesicular Monoamine Transport ProteinsPresynaptic TerminalsRats, WistarBenzazepinesNeostriatumLevodopaTryptophan HydroxylaseFluoxetineNeural InhibitionHippocampusDose-Response Relationship, DrugNerve Tissue Proteinsgamma-Aminobutyric AcidHabenulaPindololMPTP PoisoningMotor ActivityAnalysis of VariancePiperidonesPiperazines1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridineSulpirideParkinson Disease, SecondarySalicylamidesGlutamic AcidMice, KnockoutMice, Inbred C57BLCells, CulturedHomovanillic AcidAnimals, NewbornReceptors, Histamine H3Time FactorsParkinson DiseaseMembrane PotentialsNerve DegenerationImmunohistochemistryBaclofenExcitatory Postsynaptic PotentialsConditioning, OperantModels, NeurologicalNorepinephrine