Findings like these surprise me. I had a NDE a few years ago and my observation was such that everything slowed down tremendously and I was able to process every instant like it was slow motion. This wasn't like a "metaphysical" thing. I could recall the entire trip in the ambulance, every moment seemed like it was minutes.

We have so many "hacks" that the brain encodes to do the least work possible that I don't know if we could ever truly know what the brain would be capable of.