Animation made for the Cognitive Science Forum - PARIS 2013
This short animation aims to explains how consciousness occurs, and its altered states : indeed, the consciousness requires the simultaneous activities of two "things" to be functional.
In one hand, cortical functions need to be activated, in addition to awakening.
If awakening is disabled, and you will be unconscious, dormant.
In case of uneffective cortical functions, but with an active awake state : here is the vegetative state.
Disable both : you get brain dead.