Hibernation at moderate temperatures: a continuation of slow wave sleep.
Golden-mantled ground squirrels (Citellus lateralis) displayed virtually continuous electrophysiological states of sleep when hibernating at moderate ambient temperatures (22 degrees C). Rapid-eye-movement sleep progressively diminished with the fall in body temperature so that at a body temperature of 23 degrees C it was completely absent. At this temperature hibernation was characterized by slow wave sleep isomorphic with slow wave sleep episodes at non-hibernating (euthermic) body temperatures.
D000818:Animals; D001831:Body Temperature; D004594:Electrophysiology; D006605:Hibernation; D012589:Sciuridae / Q000502:physiology*; D012890:Sleep / Q000502:physiology*; D012895:Sleep, REM / Q000502:physiology; D013696:Temperature