It has been shown that only around 20% of people who get a cardiac arrest and revived could tell something about a near death experience (NDE). But if an NDE is considered to be something with the brain, why don't more people get an NDE?
Parnia, S; Spearpoint, K; Fenwick, PB (August 2007). "Near death experiences, cognitive function and psychological outcomes of surviving cardiac arrest.". Resuscitation. 74 (2): 215–21. PMID 17416449. doi:10.1016/j.resuscitation.2007.01.020.