I am neither a doctor no an expert in anything but I'll offer this. The brain is one majorly complex muscle. Doctors have barely scratched the surface of what it can and therefore, conversely, can NOT do.

Plus, I've watched documentaries detailing people with TBI learning how to walk, talk, feed themselves again by re-training their brains neural pathways. The premise is that the brain, like a house with many lightbulbs, some that never worked, can be made to "turn on" and work in place of a formerly working "bulb" that's blown out.

Does it necessarily follow that this would be the case for psychiatric conditions, no. BUT, who's to say for sure? You just never know.