Solitary NucleusReticular FormationTastePonsMedulla OblongataCell NucleusBrain StemCatsMesencephalonEfferent PathwaysThalamic NucleiWheat Germ Agglutinin-Horseradish Peroxidase ConjugateConsummatory BehaviorNeuronsNeuronal Tract-TracersElectric StimulationPedunculopontine Tegmental NucleusNeural PathwaysTrigeminal NucleiSolitary Pulmonary NoduleMicroinjectionsIntralaminar Thalamic NucleiStomatognathic SystemSleep, REMTegmentum MesencephaliWakefulnessThalamusRaphe NucleiRed NucleusPhotomicrography