that's a great question. I know creating new pathways to take up new responsibilities happens in certain parts of the brain
I'm more interested in why It didn't heal after my third injury.
I guess theres' too many cells lost to compensate.
It still ticks me off that such devastating symptoms don't even show up on an mri, although they are using a certain pet scan to see cte in the brain while the person is living. doing it at mount Sinai right over the bridge
I'm surprised I never read up on how the brain heals. I've read up on everything else

a quick perusal of google seems to indicate they are not exactly sure of the healing mechanism. but I am sure someone will come long with an answer or theory