My left eye has obviously not been the same since my accident three years ago. Not so obviously, my brain has likewise not been the same. I was not diagnosed with a concussion at the time of my accident, but after waiting and waiting to return to my old self, I have concluded that my brain has suffered some injury—delayed damage is, apparently, not uncommon.

I was resigned to living with a “new normal.” Even with all the new attention to the problems of concussion and traumatic brain injury, I was not hearing about treatment of the damage. Then I read a book by Clark Elliott: The Ghost in My Brain: How A Concussion Stole My Life and How the New Science of Brain Plasticity Helped Me Get It Back.