The Neurology of Consciouness

Reticular Activating System

Series of specialized nuclei in the core of brainstem.

Four groups of nuclei

1. Glutaminergic: activate glutamate

2. Monoaminergic: activate adrenaline, serotonin, and dopamine

3. Cholinergic: activate acetylcholine 

4. Autonomic nuclei: innervate viscera

Functions of the Reticular Activating System include: Cortical arousal, Cortical wakefulness, and Consciousness

Damage to the RAS can lead to conditions, like a coma