entropy is suppressed in normal waking consciousness, meaning that the brain operates just below criticality. It is argued that this entropy suppression furnishes normal waking consciousness with a constrained quality and associated metacognitive functions, including reality-testing and self-awareness.
Carhart-Harris proposes that waking consciousness is neurodynamically defined by sub-critical entropy suppression, which produces its characteristic metacognitive stability and differentiates it from primary states.
, The Entropic Brain: A Theory of Conscious States Informed by Neuroimaging Research with Psychedelic Drugs, 2014thesis