Subthalamic NucleusCorpus StriatumDeep Brain StimulationParkinson DiseaseGlobus PallidusDopamineSubstantia NigraSubthalamus3,4-Dihydroxyphenylacetic AcidBasal GangliaAntiparkinson AgentsBrainThalamic NucleiReceptors, DopamineLevodopaElectrodes, ImplantedBeta RhythmNeuronsStereotaxic TechniquesBerberineCorpus LuteumHypokinesiaElectric Stimulation TherapyCorpus CallosumRats, Sprague-DawleyDyskinesiasCell NucleusOxidopamineNeural PathwaysRats, Inbred StrainsParkinsonian DisordersEntopeduncular NucleusDyskinesia, Drug-InducedAgenesis of Corpus CallosumMacaca mulattaDopamine AgentsThalamusAction PotentialsTremorMicroelectrodesMuscle RigidityMagnetic Resonance ImagingBiological ClocksElectric StimulationReaction TimeFunctional LateralityBrain MappingApomorphineMotor ActivityParkinson Disease, SecondaryBehavior, AnimalMonkey DiseasesNeostriatumCaudate NucleusMovementNucleus AccumbensNeuropsychological TestsDopamine AgonistsMotor Skills1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridinePedunculopontine Tegmental NucleusPsychomotor PerformanceDysarthriaDopamine AntagonistsContingent Negative VariationModels, NeurologicalInhibition (Psychology)Motor CortexNeural InhibitionStereotyped BehaviorVentral Thalamic NucleiCerebral CortexPseudobulbar PalsySensation DisordersSpeech DisordersImage Processing, Computer-AssistedHaplorhiniAnalysis of VarianceSynaptic TransmissionGABA AntagonistsCortical SynchronizationMuscimolgamma-Aminobutyric AcidElectroencephalographyNeurologic ExaminationTime FactorsMesencephalonNeurosurgical ProceduresElectrophysiologySaimiriPeriodicityGait Disorders, NeurologicRats, WistarMedial Forebrain BundleMovement DisordersMicroinjectionsVisible Human ProjectsDenervationCuesReceptors, Dopamine D2