SerotoninTryptophan HydroxylaseSerotonergic Neurons8-Hydroxy-2-(di-n-propylamino)tetralinReceptor, Serotonin, 5-HT1AReceptors, Serotonin, 5-HT1Serotonin Receptor AgonistsReceptors, SerotoninAutoreceptorsSerotonin AntagonistsMedulla OblongataBrain Stem5,7-DihydroxytryptamineNeuronsSerotonin 5-HT1 Receptor AntagonistsRats, Sprague-DawleySerotonin 5-HT1 Receptor AgonistsMicroinjectionsSerotonin AgentsLocus CoeruleusHydroxyindoleacetic AcidSerotonin Plasma Membrane Transport ProteinsReceptors, Corticotropin-Releasing HormoneMicrodialysisReceptor, Serotonin, 5-HT1BMetergolineNeural PathwaysCinanserinAmino Acid Transport Systems, AcidicVesicular Glutamate Transport ProteinsSerotonin Uptake Inhibitors5,6-DihydroxytryptamineProto-Oncogene Proteins c-fosPonsPiperazinesFenclonineHelplessness, Learnedp-ChloroamphetamineBehavior, AnimalCorticotropin-Releasing HormoneReticular FormationFluoxetineCatsRats, WistarPyridinesReceptors, Serotonin, 5-HT2MesencephalonElectric StimulationAutoradiographyWakefulnessReceptor, Galanin, Type 2Periaqueductal GrayPenile DiseasesDominance-SubordinationChemoreceptor CellsLysergic Acid DiethylamidePhrenic NerveBiogenic MonoaminesPreoptic AreaGABA AgonistsAction PotentialsStilbamidinesBrainCitalopramVesicular Glutamate Transport Protein 2Afferent PathwaysMethysergideRespiratory CenterMethiothepinImmunohistochemistryIontophoresisEfferent PathwaysTilidineNeural InhibitionIbotenic AcidGABA AntagonistsHypoglossal NerveRespirationDrug Administration RoutesHabenulaSynaptic TransmissionSerotonin 5-HT2 Receptor AgonistsAutonomic DenervationReceptor, Serotonin, 5-HT2ABrain ChemistryMediodorsal Thalamic NucleusAggressionRespiratory MechanicsAcidosis, RespiratoryGABA-A Receptor AgonistsDecerebrate StateAutonomic PathwaysThermogenesisElectrophysiologyBicucullineCarbon DioxideClomipramineReceptor, Serotonin, 5-HT2CParoxetineUrocortins