WakefulnessOrexin ReceptorsNeuronsNeuropeptidesReceptors, NeuropeptideSleepSleep, REMSleep StagesNeurons, AfferentBenzoxazolesSleep DeprivationIntracellular Signaling Peptides and ProteinsMotor NeuronsNarcolepsyElectroencephalographyArousalCataplexyPonsCircadian RhythmReceptors, G-Protein-CoupledAction PotentialsPolysomnographyElectromyographyReticular FormationHypothalamusHypothalamic HormonesCerebral CortexBrainPatch-Clamp TechniquesSerotonergic NeuronsSynaptic TransmissionDopaminergic NeuronsLocus CoeruleusCatsTegmentum MesencephaliElectrophysiologyRats, Sprague-DawleyMedulla OblongataNeural InhibitionProsencephalongamma-Aminobutyric AcidBehavior, AnimalPharyngeal MusclesTime FactorsBenzhydryl CompoundsGABAergic NeuronsSynapsesHippocampusThalamusElectric StimulationRespirationPulmonary VentilationMicrodialysisPituitary HormonesNeurotransmitter AgentsNerve Tissue ProteinsAdrenergic NeuronsMice, Inbred C57BLElectrooculographyRespiratory MechanicsDisorders of Excessive SomnolenceImmunohistochemistryModels, NeurologicalAnimals, NewbornMice, TransgenicRaphe NucleiMicroinjectionsChemoreceptor CellsBrain StemRats, WistarCholinergic NeuronsCells, CulturedHypothalamic Area, LateralGanglia, SpinalAxonsAnalysis of VarianceNeurons, EfferentProto-Oncogene Proteins c-fosDopamineBody TemperatureDendritesSensory Receptor CellsMembrane PotentialsOlfactory Receptor NeuronsSleep Apnea SyndromesExcitatory Postsynaptic PotentialsHypercapniaSpinal CordEvoked PotentialsReaction TimeGlutamic AcidCentral Nervous System StimulantsMotor Neuron DiseaseMice, KnockoutSleep Disorders, IntrinsicNerve NetVentilators, Negative-PressureTetrodotoxinPreoptic AreaAfferent Pathways