Corpus StriatumBasal GangliaBrainMagnetic Resonance Imaging3,4-Dihydroxyphenylacetic AcidDopamineReceptors, DopamineBrain MappingBerberineCorpus LuteumSubstantia NigraCorpus CallosumCell NucleusRats, Inbred StrainsRats, Sprague-DawleyNeuronsAgenesis of Corpus CallosumNeostriatumNucleus AccumbensCaudate NucleusCorpora AllataThalamic NucleiSolitary NucleusReceptors, Dopamine D2PenisCochlear NucleusRaphe NucleiSeptal Nuclei