Hey Concussed Scientist!

You should definitely scour the internet as much as you can for good sources of information on hbot. I found from looking at a ton of sources that it seems to be the case that for head injuries the correct pressure is 2.0 for 1 hour, for at least 40 sessions. This has proven to help the brain by using SPECT imaging before and after hbot therapy which showed a healthier brain post hbot. There is also a study on going in the military about people getting exploding ied's (bombs) by their head and having severe traumatic head injuries and having disorders like depression for a year resolve with 40 hbot treatments.

However, I haven't really found much by the way of normal people on forums talking about hbot. I also haven't found if hbot would be good for traumatic brain encephalopathy, or if really anything would be good for tbe.