One of my colleagues, Ginny Daniels, mentioned this fascinating show on National Geographic, and I had to look it up for myself.  Apparently, I missed the airing of the episodes, but National Geographic has video clips available online, as well as some games and other resources to challenge your own perceptions.  One of the fascinating episodes has a clip involving “fooling your brain” using a rubber hand.  If nothing else, this site shows how important it is for us to think about our thinking.