Maturation of patterns of sleep and wakefulness in the kitten.
D000818:Animals; D001921:Brain / Q000254:growth & development*; D002415:Cats; D002540:Cerebral Cortex / Q000502:physiology*; D002940:Circadian Rhythm; D003243:Consciousness; D004594:Electrophysiology; D005625:Frontal Lobe / Q000502:physiology; D009778:Occipital Lobe / Q000502:physiology; D010296:Parietal Lobe / Q000502:physiology; D012890:Sleep / Q000502:physiology*; D014851:Wakefulness