-For 'altered consciousness', see Charles T. Tart or the psi-research.
-'ncc' stands for 'neural correlate of consciousness', see consciousness studies; in fact: the 'disposition' as the requirement for the exsistence of consciousness, shortly: the human brain.
-Thanks for your answer(s)! Marc.
-(My next question would be: What is the nature and origin of this 'altered ncc'? This question has further implications regarding the hotly controversial issues of evolutionism vs. creationism. But please keep this question in suspense!).