Parietal Cells, GastricSomatostatinHistamineReceptors, SomatostatinH(+)-K(+)-Exchanging ATPaseHistamine ReleaseReceptors, Histamine H1Receptors, Histamine H2Gastric AcidAminopyrineReceptors, HistamineHistamine AntagonistsGastric MucosaHistamine AgonistsReceptors, Histamine H3Histamine H1 AntagonistsOctreotideGastrinsHistamine H2 AntagonistsParietal BoneAchlorhydriaIntrinsic FactorVagotomy, Proximal GastricStomachChief Cells, GastricAnemia, PerniciousGastric FundusPentagastrinHistamine N-MethyltransferaseGastric JuiceCimetidineHistidine DecarboxylasePyrilamineSomatostatin-28MetiamidePhotic StimulationMethylhistaminesBrain MappingEnterochromaffin-like CellsDuodenal UlcerCarbacholMagnetic Resonance ImagingDimapritHistamine H3 AntagonistsHistamine AgentsRabbitsPyloric AntrumReaction TimeSecretory RateGastritis, AtrophicDumping SyndromeVagotomyDogsTime FactorsChlorpheniramineGastritisVisual PerceptionAttentionFunctional LateralityPsychomotor PerformanceBrainGuinea PigsGastric FistulaDose-Response Relationship, DrugEnterochromaffin CellsNeuroendocrine TumorsCells, CulturedDiphenhydramineSpace PerceptionCerebral CortexReceptors, CholecystokininRanitidineMast CellsFrontal LobeNeuronsSomatostatin-Secreting CellsAcoustic StimulationSLC4A Proteinsp-Methoxy-N-methylphenethylamineGlucagonImmunohistochemistryAcromegalyIndium RadioisotopesPeptides, CyclicRNA, MessengerRats, Sprague-DawleyCyclic AMPOmeprazolePhysical StimulationImage Processing, Computer-AssistedHydrochloric AcidPancreatic PolypeptideStimulation, ChemicalChloride-Bicarbonate AntiportersCuesBasophilsPattern Recognition, VisualDiscrimination (Psychology)OstertagiasisGastric Acidity Determination