Corpus Striatum3,4-Dihydroxyphenylacetic AcidDopamineBrainReceptors, DopamineBerberineCorpus LuteumCorpus CallosumSubstantia NigraRats, Inbred StrainsAgenesis of Corpus CallosumRats, Sprague-DawleyNeuronsNeostriatumCorpora AllataBasal GangliaPenisMagnetic Resonance ImagingReceptors, Dopamine D2Corpus Luteum MaintenanceOxidopamineLuteolysisPutamenProgesterone