So I figure an out of body experience is the result of a particular aspect in our brain not quite working as it normally does.
While that may be true in your particular case - and a good deal others - it cannot be true in all of them because it just does not fit the facts for all reported cases. And that, in a nutshell, is the problem with reductionism to brain activity (a cornerstone of the materialist philosophy) being used as an attempt to explain this type of phenomena. So we are left with two choices; either the explanation is wrong or the people who experience it (for example whilst being clinically dead and then later revived, either through a defibrillator or waking up in a morgue or some other strange circumstance) are wrong despite this being well documented and not being constrained to any particular point in human history.
I side with the theory being wrong, but others may not.