Corpus StriatumCerebellumCorpus LuteumCorpus Callosum3,4-Dihydroxyphenylacetic AcidDopamineBrainReceptors, DopamineAgenesis of Corpus CallosumBerberineSubstantia NigraRats, Inbred StrainsRats, Sprague-DawleyNeuronsCorpora AllataPenisNeostriatumCorpus Luteum MaintenancePurkinje CellsLuteolysisProgesteroneBasal GangliaMagnetic Resonance ImagingCerebellar CortexPenile ErectionCerebellar DiseasesLuteal CellsLuteal PhaseDinoprostReceptors, Dopamine D2PseudopregnancyCorpus Luteum HormonesNeural PathwaysCerebral CortexEstrusPutamenPregnancyBrain MappingOvaryNerve Tissue ProteinsImage Processing, Computer-AssistedImmunohistochemistryCaudate NucleusOxidopamineBrain ChemistryTime FactorsDopamine AntagonistsCerebellar NucleiOvulationEstrous CycleRats, Wistar