Corpus StriatumChronic DiseaseMultiple SclerosisDopamine3,4-Dihydroxyphenylacetic AcidOxidopamineReceptors, DopamineBrainSubstantia NigraAcute DiseaseMagnetic Resonance ImagingBerberineCorpus LuteumCorpus CallosumRats, Sprague-DawleyRats, Inbred StrainsIbotenic AcidNeuronsNeostriatumAgenesis of Corpus CallosumParkinson Disease, SecondaryAdrenergic AgentsBrain Tissue TransplantationRibosome Inactivating Proteins, Type 1Behavior, AnimalHydroxydopaminesBasal GangliaLevodopaParkinsonian DisordersTyrosine 3-MonooxygenaseCholinergic AgentsSympatholyticsDopamine AgonistsAmphetamineRats, Long-EvansMotor ActivityParkinson DiseaseDopamine AntagonistsProsencephalonDenervationDisease Models, AnimalFenclonineNeural PathwaysHippocampusRats, WistarSubthalamic NucleusAvoidance LearningAnimals, NewbornPrefrontal Cortex2,3,4,5-Tetrahydro-7,8-dihydroxy-1-phenyl-1H-3-benzazepineCorpora AllataConditioning, OperantTime FactorsAnalysis of VarianceReceptors, Dopamine D2PenisPutamenCorpus Luteum MaintenanceApomorphineFetal Tissue TransplantationCerebral CortexMPTP PoisoningLuteolysisCaudate NucleusNerve RegenerationQuinolinic AcidProgesteroneImmunohistochemistryReceptors, Dopamine D1RewardDopamine Agents