Radioligand AssayBinding, CompetitivePositron-Emission TomographyIodine RadioisotopesRadiopharmaceuticalsTritiumFluorine RadioisotopesIodocyanopindololNortropanesRadiochemistryCarbon RadioisotopesReceptors, Adrenergic, betaPindololN-MethylscopolamineLigandsBrainQuinuclidinyl BenzilateAutoradiographyReceptors, Dopamine D2DihydroalprenololBenperidolSerotonin AntagonistsCHO CellsReceptors, SerotoninReceptors, Adrenergic, alpha-1Bicyclo Compounds, HeterocyclicTissue DistributionPropanolaminesSpiperoneCricetinaeKineticsReceptors, Purinergic P1XanthinesTetralonesReceptors, Histamine H3Receptors, Dopamine D3Binding SitesReceptors, PurinergicAdrenergic alpha-1 Receptor AntagonistsPyridinesCell MembraneReceptors, MuscarinicAdrenergic alpha-AntagonistsWhole Body ImagingMembranesRats, Sprague-DawleyIsradipinePiperidinesDopamine Plasma Membrane Transport ProteinsRacloprideDose-Response Relationship, DrugDioxanesFlumazenilReceptor, Adenosine A3Dopamine AntagonistsMetabolic Clearance RateReceptors, Adrenergic, alphaIsotope LabelingReceptors, sigmaAllosteric RegulationPurinergic P1 Receptor AntagonistsAzabicyclo CompoundsMuscarinic AntagonistsDiprenorphineCerebral CortexReceptor, Serotonin, 5-HT1APyrrolidinesSalicylamidesGuinea PigsReceptor, Serotonin, 5-HT2ACyclic AMPCricetulusTomography, Emission-ComputedPhenylisopropyladenosineReceptor, Adenosine A1PapioReceptors, CholecystokininPrazosinBicyclo CompoundsWhole-Body CountingProtein BindingReceptors, AngiotensinPhenethylaminesDopamine AgonistsPurinergic P1 Receptor AgonistsTropanesReceptors, Serotonin, 5-HT3Serotonin Receptor AgonistsBrain ChemistryKetanserinPutamenIdazoxanPiperazinesAdenosine-5'-(N-ethylcarboxamide)Receptors, GABAReceptors, AdrenergicReceptor, Muscarinic M2Receptors, DopamineCorpus StriatumAdenosine