Update: 8/26/2010
Jeff had an OK day. CT Scan showed the brain swelling is the same as the previous test. They've got his shivering under control and his temperature is normal, but they kept the cooling vest on. They also discontinued one of his sedatives.
Every 6 hours or so, they back off on his sedatives and test is body's reaction. Essentially they bring him somewhat out of it and pinch him to see if he reacts. Usually he'll move his arm or something similar. Today, he didn't focus on anything, but he opened his eyes. It seems a bit dangerous for the nurse, if you ask me. I don't think I'd want to be the one to pinch Jeff to try and get a reaction out of him.
That's all I know at this time.