I need help finding an effect I have seen Mentalist perform where the have to people up on stage and have them put there arms out and touch one of them on the arm and they both feel it on the same place even though only one was touched. I have looked in Banachek series, Osterlinds 13 steps, and several other places but I can't seem to find it. If you can help please tell me what the name of this effect is called.