The way to teach nerve cells to act like they're supposed to is somehow [I don't know the details] create a basic training regimen for them and then transplant to the host where the principle of context will "fill in" from the older nerve cells, until the younger cells operate as if they were there from the beginning.
Obviously, I'm not a biologist or surgeon or lab technician or what have you that would have the knowledge and experience to be able to do this, but it is possible, and probably only doable by a team of specialists [see University of Illinois C-U campus for details on this methodology]. Or I could be wrong, but I don't think so.
