I did 80 dives at 1.5 ata at rocky mountain hyperbaric in colorado. 40 dives first then month rest and 40 dives after. At the place they had a neuropsych assesment after each 40 dives.

It was a 45 min test so nothing too comprehensive but it showed a huge increase after each 40 dive session. I was hoping to get rid of tinnitus but that didnt happen. The place is being operated by two stroke survivors.and its free for veterans. For non vets they can be negotiable but its about $100 a dive. Yes I am hearing great things about the versus neurofeedback helmet.