Respiratory neurons of the pneumotaxic center during sleep and wakefulness.
Extracellular recordings were made from respiratory related units (RRUs) in the pneumotaxic center (PNC) of unanesthetized cats across states of consciousness: wakefulness, NREM and REM sleep. Contrary to expectations from results in acute preparations, well-modulated respiratory activity was detected in chronic animals with vagi intact. Pontine RRU activity decreased during sleep in 75% of the cells studied. The greatest reduction occurred during REM sleep.
D000818:Animals; D001931:Brain Mapping; D002415:Cats; D008168:Lung / Q000294:innervation; D009433:Neural Inhibition; D009475:Neurons, Afferent / Q000502:physiology; D011149:Pons / Q000502:physiology*; D012125:Respiratory Center / Q000502:physiology*; D012890:Sleep / Q000502:physiology*; D012895:Sleep, REM / Q000502:physiology; D014630:Vagus Nerve / Q000502:physiology