Changes in the tonic vagal impulse activity during sleep and wakefulness.
D000818:Animals; D002415:Cats; D002540:Cerebral Cortex / Q000502:physiology; D004566:Electrodes; D004569:Electroencephalography; D005071:Evoked Potentials; D012890:Sleep; D014630:Vagus Nerve / Q000502:physiology*; D014851:Wakefulness