There were mostly FB-games. Things like "Who Has the Biggest Brain", word games (speed reactions), like Word Drop and Word Challenge in FB.
(I don't know anything about these games; I just have their names and a datapoint that they were good to verify daily shape and trace mind effects for medicines, etc. For some specific problems I'm not going to discuss.)
I should add this. I believe it is correct (no personal experience).
It seems there were two ideas here. One, do the stupid game enough so you didn't learn much by doing half an hour again == that is, it was a good test of present ability. Two, find something that is relevant for the problem you have.
