Reticular FormationPonsMedulla OblongataBrain StemCatsMesencephalonEfferent PathwaysWheat Germ Agglutinin-Horseradish Peroxidase ConjugateConsummatory BehaviorNeuronal Tract-TracersElectric StimulationPedunculopontine Tegmental NucleusSleep, REMNeuronsStomatognathic SystemNeural PathwaysTegmentum MesencephaliWakefulnessThalamic NucleiReticulumIntralaminar Thalamic NucleiPhotomicrographyMicroinjectionsThalamusElectroencephalographyVestibular NucleiOculomotor NerveTrigeminal NucleiMuscimolSuperior ColliculiNeurons, EfferentElectromyographyStilbamidinesSpinal CordAbducens NerveImmobility Response, TonicMicrodialysisDecerebrate StateSaccadesAfferent PathwaysHypoglossal NerveMotor NeuronsHead MovementsRed NucleusGABA-A Receptor AgonistsGABA AgonistsThiamylalCholinergic AgonistsStomach, RuminantOphthalmoplegiaArousalAction PotentialsRats, Sprague-Dawleygamma-Aminobutyric AcidSleepOrexin ReceptorsElectrooculographyFunctional LateralityUrinary Tract InfectionsAcetylcholineRaphe NucleiHorseradish PeroxidaseAnesthesiaMacaca fascicularisForelimbAxonal TransportShoulderMacaca mulattaGastrointestinal TractBrainBicucullineUrinary TractEvoked PotentialsNeural InhibitionLocomotionReflexCerebellumSolitary NucleusInjectionsReticulinCerebral CortexCarbacholProto-Oncogene Proteins c-fosStartle ReactionElectrophysiologyPyramidal Tracts