title: [Specific neurons for wakefulness in the posterior hypothalamus in the cat].
abstract: Using a single unit recording technique in freely moving Cats, we have demonstrated the presence of two groups of neurons in the ventrolateral part of the caudal hypothalamus. One is characterized by a tonic discharge during waking and paradoxical sleep, the other is highly selective to the waking state. This group of neurons showed a slow tonic and regular discharge during wakefulness, a significant decrease in firing rate during stage I slow-wave sleep and a complete cessation of firing during stage II slow-wave sleep and subsequent paradoxical sleep.
mesh_terms: D000818:Animals; D002415:Cats; D004594:Electrophysiology; D007031:Hypothalamus / Q000502:physiology*; D007034:Hypothalamus, Posterior / Q000502:physiology*; D009474:Neurons / Q000502:physiology*; D012890:Sleep / Q000502:physiology; D012895:Sleep, REM / Q000502:physiology; D014851:Wakefulness / Q000502:physiology*
vernacular_title: Neurones spécifiques de l'éveil dans l'hypothalamus postérieur du chat.