Difference in electrical activity during wakefulness and the phase of 'sleep with muscular twitches' as recorded from the cortex of the marsupial Didelphis azarae (South American opossum).
D000818:Animals; D002540:Cerebral Cortex / Q000502:physiology*; D004569:Electroencephalography; D004594:Electrophysiology; D006624:Hippocampus / Q000502:physiology*; D008394:Marsupialia; D009119:Muscle Contraction / Q000502:physiology*; D012890:Sleep; D014851:Wakefulness