Noun
(neuroscience) The neurologically defined degrees of consciousness.
(neuroscience) The neuromechanics of consciousness; The brain mechanisms and the systemic interactions that give rise to consciousness.
(by extension from the neurological sense) Soulless/ametaphysical consciousness; Consciousness without a soul; The encephalological and non-Cartesian spectrum of definitions of consciousness.
Source: en.wiktionary.org