While this experience with my mom has been nothing short of hell, she continues to progress and surprise us. She definitely has not lost her sense of humor through all this. A few times a day we ask her general questions (what's your name, etc.). She answers every question we ask except when I asked her her age. I said "How old are you?" and there was silence. I asked her again (joking with her that she had to tell the truth). "How old are you?" To that she answered "Too old!"
She has now started asking for Diet Coke. She told me to go to the refrigerator and get her one. When I told her we did not have any up in the room, she promptly told me to "go to the machine". She asked me if her husband would bring her one as well. When I told her he wasn't (because she can't have any), she told me that if he didn't bring her one, he would be fired!
Her sense of humor and strength is really a comfort to us.