Cerebral VentriclesCerebrospinal FluidInjections, IntraventricularFourth VentricleCisterna MagnaHeart VentriclesShiveringCerebrospinal Fluid ProteinsCerebral ArteriesInjectionsBrainBody TemperatureLateral VentriclesEpendymaSubarachnoid SpaceHypothalamusHydrocephalusCerebral InfarctionPempidineHypnosis, AnestheticBody Temperature RegulationPhysostigmineCerebral Ventricle NeoplasmsChoroid PlexusCerebrospinal Fluid RhinorrheaCatsHexamethonium CompoundsThird VentricleTranylcypromineCerebrovascular CirculationCerebral PalsyConsciousnessCerebrospinal Fluid ShuntsPerfusionCerebrospinal Fluid PressureMiddle Cerebral ArterySerotoninHistamine AgentsPyrogensMeningitisDogsNorepinephrineBlood PressureTime FactorsRats, WistarDrinkingInjections, IntravenousPhentolamineLysergic Acid DiethylamideRats, Sprague-DawleyCerebral AngiographyParasympathomimeticsMalaria, CerebralCerebral VeinsInfarction, Middle Cerebral ArteryReserpinePentobarbitalMagnetic Resonance ImagingFeverAtropineCerebral HemorrhageBrain IschemiaHeart RateSpinal PunctureDepression, ChemicalIntracranial PressureMeningitis, BacterialNaloxoneRespirationRabbitsCerebrospinal Fluid OtorrheaBrain DiseasesMeningitis, ViralRats, Inbred StrainsDose-Response Relationship, DrugSheepArginine VasopressinNeuronsVentricular FunctionProstaglandinsElectroencephalographyMeningitis, AsepticTuberculosis, MeningealSubarachnoid HemorrhageVasopressinsStimulation, ChemicalBlood-Brain BarrierCerebral VentriculographyCarbacholProstaglandins ECorticotropin-Releasing HormoneMorphineMeningitis, PneumococcalEpinephrineBehavior, AnimalHeartMyocardiumMeningoencephalitisIschemic Attack, TransientTomography, X-Ray Computed