Changes in spontaneous activity of medialis dorsalis thalamic neurones during sleep and wakefulness.
In chronic unanaesthetized cats unitary activity of medialis dorsalis (MD) thalamic neurones was recorded during wakefulness (W), slow wave (SWS) and desynchronized (DS) sleep. The discharge pattern of these neurones changes during SWS compared to W. Comparison between desynchronization of W and DS shows a change in the mean frequency, being higher in W than in DS. The results suggest that MD neurones participate in the organization of the sleep-wakefulness cycle.
D000200:Action Potentials; D000818:Animals; D002415:Cats; D004594:Electrophysiology; D009474:Neurons / Q000502:physiology; D012890:Sleep / Q000502:physiology*; D013787:Thalamic Nuclei / Q000502:physiology*; D014851:Wakefulness / Q000502:physiology*