DopamineVentral Tegmental AreaNeuronsReceptors, Dopamine D2Dopaminergic NeuronsReceptors, Dopamine D1Dopamine AgonistsDopamine AntagonistsReceptors, DopamineTyrosine 3-MonooxygenaseDopamine Uptake InhibitorsReceptors, Dopamine D3Tegmentum MesencephaliCentral Nervous System DepressantsDopamine Plasma Membrane Transport ProteinsRats, Sprague-DawleyNeurons, AfferentDopamine AgentsAction PotentialsCocaineEthanolMotor Neuronsgamma-Aminobutyric AcidPatch-Clamp TechniquesReceptors, Dopamine D5Rats, Inbred F344Corpus StriatumDopamine beta-HydroxylaseNucleus AccumbensQuinpiroleSubstantia NigraBenzazepinesMesencephalonSynaptic TransmissionRacloprideBehavior, AnimalSulpirideNeostriatumNerve Tissue ProteinsElectric StimulationSalicylamidesBrainElectrophysiologyAmphetamineHaloperidolApomorphineHippocampusGABAergic NeuronsMicrodialysisOxidopamineNeural InhibitionLevodopaRewardCells, CulturedDendritesRats, WistarAxonsGlutamic AcidSerotoninCerebral CortexSynapsesHomovanillic AcidDose-Response Relationship, DrugMembrane PotentialsTime FactorsAnimals, NewbornGanglia, SpinalSensory Receptor CellsCholinergic NeuronsModels, NeurologicalImmunohistochemistrySpiperoneExcitatory Postsynaptic PotentialsOlfactory Receptor NeuronsDopamine and cAMP-Regulated Phosphoprotein 32Mice, Inbred C57BLSpinal CordPrefrontal CortexNeuropeptidesRats, Long-EvansAnalysis of VarianceErgolinesCaudate NucleusPyramidal CellsNeurons, EfferentInterneuronsMotor Neuron DiseaseMotor ActivityNeurotransmitter AgentsVesicular Monoamine Transport ProteinsMicroinjectionsReceptors, N-Methyl-D-AspartateTetrodotoxinalpha-MethyltyrosinePresynaptic TerminalsMice, KnockoutLimbic SystemNeuronal PlasticityConditioning, OperantSerotonergic Neurons