Trucha, the philosophy of science is the first subject that I studied for undergrad. science, and here in Aust. at least I think that is the norm. so researchers do understand what you are saying. There is really very little room in research for egotism, when peer review is such a constant. Science both proves AND disproves theories, that is how it progresses.
I disagree that this study lacks comparative (to real life clinical situations) value because of "very artificially created conditions". The rat anatomy/physiology is a very good model for human such like. The controlled methods employed in this study are important to account for variables. And after all a heart attack is a heart attack, whether in a rat model or human life.
The point of the study is firstly to establish if DMT is produced at death, and secondly what is the function of that DMT in the brain. For the purposes of this study, the discussion of near death experiences was made, and if the NDE visions have a chemical basis. Very interesting.