That sounds like a lousy thing to do to someone with amnesia. I hope they got copies of paintings in the end, even if they don't remember how they got them.
Heh, I'm really undecided on the morality of inconsequentially lying to someone who can't remember it, but I certainly hope they were appropriately rewarded for their participation in the study whether or not that includes paintings.
That sounds like a lousy thing to do to someone with amnesia. I hope they got copies of paintings in the end, even if they don't remember how they got them.