Sleep: a physiological "cerveau isolé" stage?
Rapid or paradoxical sleep in the rat is usually preceded and often followed by a stage of short duration characterized by large spindles in the frontal cortex and theta rhythm in the hippocampus. The midbrain transection induces for hours the same electrophysiological patterns suggesting the existence in the rat of a short physiologically isolated, forebrain stage during sleep.
D000818:Animals; D001921:Brain / Q000502:physiology*; D001933:Brain Stem / Q000502:physiology; D003655:Decerebrate State; D005071:Evoked Potentials; D005625:Frontal Lobe / Q000502:physiology; D006624:Hippocampus / Q000502:physiology; D008297:Male; D009778:Occipital Lobe / Q000502:physiology; D051381:Rats; D012894:Sleep Stages / Q000502:physiology*; D013826:Theta Rhythm