Yes I have heard that about strokes as well. I watched a video where a neuro-scientist explained her stroke experience. She suggested that it had to do with the stroke being on the left hemisphere of her brain which caused her right hemisphere to completely take over. The talk was very interesting. I think it was a TED talk.

I've never tried DMT but would like to. I'd like to do ayhuaska which is a drinkable DMT (you may be aware of that). I've smoked salvia and I think it would be similar to DMT based on what I've read but all that is just theory.