Thanks, Hopefully you can let me know what you think this is.. my mother is 81 years old. In the past several months, she has had increasing difficulty with remembering times and dates; she currently can t understand a calendar and gets appointments wrong every week. She has trouble with am and pm sometimes, and doesn t believe the clock sometimes. She has missed appts and shown up at the wrong times/days many times lately. She also is having difficulty wiht simple rules to games as well as simple addition of a few numbers. She used to do bookkeeping so this kind of task was very easy for her.