As previously noted there is much research around brain repair. Exeter is one site in the UK - here's a latest bulletin from Medical News Today :
link.medicalnewstoday.com/c...
"Dr. Nazeer pointed out that research into using psychedelics as antidepressants is not new, he did think the study paves the way for more research.
“I think this is a very defining study in terms of how it’s going to open up a lot more research that will be done with this study as a foundation,” commented Dr. Nazeer. “And further studies will now start looking deeper at this concept of getting antidepressant responses without altering somebody’s state of mind.”