Alpha theory and non-specific cortical activation.
D002540:Cerebral Cortex / Q000378:metabolism / Q000502:physiology*; D004594:Electrophysiology; D005724:Ganglia / Q000502:physiology; D010101:Oxygen Consumption / Q000502:physiology; D012154:Reticular Formation / Q000378:metabolism / Q000502:physiology*