I found an old magazine (mind.scientificamerican.com)with a very interesting article on pain.
“We are more often frightened then hurt: and we suffer more from imagination then reality” by Lucius Annaeus Seneca
I very much appreciate both analogies in this article concerning play.
1 – pain can be percieved very different in a game context then outide a game context
2- illusion diminshes pain, a game can help a child being treated painfully better then morphine
