ApomorphineDopamine AgonistsReceptors, DopamineDopamine AntagonistsHaloperidolPiribedilEmeticsPenile ErectionPimozideStereotyped BehaviorStartle ReactionReceptors, Dopamine D2DopamineLevodopaAntiparkinson AgentsCatalepsyDose-Response Relationship, DrugRats, Sprague-DawleyTranquilizing AgentsQuinpiroleCarbidopaReceptors, Dopamine D1Sensory GatingYawningHydroxydopaminesBenzazepinesHormone AntagonistsDopamine AgentsDomperidone2,3,4,5-Tetrahydro-7,8-dihydroxy-1-phenyl-1H-3-benzazepineBehavior, AnimalMotor ActivityErgolinesParkinson DiseaseOxidopamineParkinson Disease, SecondaryAmphetamineAdministration, SublingualExcitatory Amino Acid AntagonistsNeurokinin-1 Receptor AntagonistsReceptors, Dopamine D3Corpus StriatumBis(4-Methyl-1-Homopiperazinylthiocarbonyl)disulfideRats, WistarNarcotic AntagonistsHistamine H2 AntagonistsSubstantia NigraSulpirideInterleukin 1 Receptor Antagonist ProteinHarmineSpiperonePenisMuscarinic AntagonistsDyskinesia, Drug-InducedInfusion PumpsFlupenthixolSerotonin Receptor AgonistsGABA AntagonistsInjections, SubcutaneousHistamine H1 AntagonistsDrug InteractionsPurinergic P1 Receptor AntagonistsLisurideReceptors, SerotoninPiperidinesScopolamine HydrobromideAdrenergic alpha-AntagonistsErectile DysfunctionAntipsychotic AgentsHistamine AntagonistsNicotinic AntagonistsMetoclopramidePiperazinesBromocriptineAdenosine A2 Receptor AntagonistsRats, Inbred StrainsAdrenergic alpha-1 Receptor AntagonistsPurinergic P2 Receptor AntagonistsInjections, Intraventricular