Central Nervous System DiseasesAutonomic Nervous System DiseasesAutonomic Nervous SystemNervous System DiseasesCentral Nervous System Viral DiseasesMeningoencephalitisCentral Nervous System InfectionsCentral Nervous SystemBrainSubacute Sclerosing PanencephalitisAIDS Dementia ComplexBrain DiseasesMaus Elberfeld virusCerebrospinal FluidMeningesDemyelinating DiseasesEnterovirus InfectionsHeart RateParasympathetic Nervous SystemAstrocytesNeuronsSympathetic Nervous SystemNervous SystemDisease Models, AnimalMagnetic Resonance ImagingGanglionic BlockersAutonomic DenervationVagus NerveAutonomic PathwaysAutonomic AgentsGalvanic Skin ResponseAutonomic Nerve BlockLamin Type AArrhythmia, SinusHeart Conduction SystemCardiovascular Physiological ProcessesBlood PressureCells, CulturedDigestive System DiseasesElectrocardiographyElectrocardiography, AmbulatoryEnteric Nervous SystemAtropineTrimethaphanPeripheral Nervous SystemDysautonomia, FamilialPeripheral Nervous System DiseasesPropranololHeartTime FactorsCardiovascular SystemCause of DeathBaroreflexCardiovascular Physiological PhenomenaHexamethoniumParasympatholyticsCircadian RhythmMuscarinic AntagonistsParasympathectomyValsalva ManeuverAutopsyCentral Nervous System NeoplasmsGanglia, AutonomicNorepinephrineGlycopyrrolateCatecholaminesChlorisondamineMassageImmunohistochemistryArrhythmias, CardiacImmune System DiseasesPancreatic PolypeptideHypoventilationEndocrine System DiseasesRisk FactorsAdrenergic AgentsPsychophysiologyOxymetazolineNervous System Physiological PhenomenaInfant, NewbornShy-Drager SyndromeBradycardiaCardiography, ImpedanceDogsSupine PositionRelaxationNeurosecretory SystemsAdrenergic beta-AntagonistsMutationTilt-Table TestPeripheral NervesVagus Nerve StimulationStress, PsychologicalRespirationAtrial FunctionSignal Processing, Computer-AssistedHemodynamicsNeuroimmunomodulationMagnetocardiographyTelemetry