Interestingly enough, they learned that increased neural signal diversity resulted, and when someone was "peaking" on DMT the brain was also lit up significantly. This is akin to the research found in dreams and R.E.M. but it's still rather inconclusive as to whether or not inducing such activity in the mind results in the associated conscious experience. Many materialists believe this to be the case, but this does not sit well with my understanding of Mind over Matter.