From the intro:
This main aim of this paper is to introduce a new theory of conscious states that incorporates principles of physics, neurobiology and psychoanalysis. The theory is intended to assist our understanding of the makeup of the human mind, addressing such questions as: ‘how does the normal waking consciousness of healthy adult humans relate to other states of consciousness?’, ‘how does the human brain maintain its normal state of waking consciousness?’, and ‘what happens to the human brain’s functionality when non-ordinary states such as rapid eye movement (REM) sleep/dreaming, early psychosis and the psychedelic state occur?’.
The abstract can be found here: The entropic brain: A theory of conscious states informed by neuroimaging research with psychedelic drugs. The paper itself can be accessed through a link on the right side of that page.