I'm a longitudinal bipolar study. I think its my 10th year. Its going longer than they expected. Ive done lots of games- hours and hours worth. One was on the computer. It would flash a letter and you had to hit a certain key when you saw the right letter- or you were to skip certain letters, or multiples of 5 or whatever it is. Last year I blanked on the computer square/numbers/letters thing because my brain just sat down like a tired dog on a walk and refused to go any more- so, I just kept pressing random keys until the computer finally stopped the program. That's what five hours of "games" and telling your whole history over again will do for you!