So far what we see are posterior injuries, the part of the brain that would have to do more with sensation and possibly even vision.

It's very hard when all you're going on is pictures.

You put the brain to sleep a little bit so it doesn't have to do as much work. It's a sort of protective thing to do.

The attention given to the side of the head which has received the injury, in connection with a specific reference to the side of the body nervously affected, is in itself evidence that in this case the ancient surgeon was already beginning observations on the localization of functions in the brain.

The participants are severely disabled vets with spinal cord injuries, amputees, brain injuries.

He had some posterior cuff irritation that obviously we need to get evaluated.