Does anyone know this game?

My friends and I were playing a mind game at a party the other day, I'm curious as to where I can find the rules to this game, or at least mire info on it, I'm not sure of the name but in the beginning, the person being hypnotized lays down on the hyponotizers lap, rubbing the others temples, the hyponotizer chants 'black door yellow door all different color doors' between 7-11 times, if more detail is required I'll be happy to keep describing it, please help