The nudge theory and beyond: how people can play with your mind

Mental manipulation can be backed by good intentions – but when used with stealth, it is deceitful and wrongA couple of decades ago, a class of psychology undergraduates played a mean trick on their lecturer. The students on the right side of the room gently nodded, smiled, and looked thoughtful, while those on the left seemed bored and glum. Before long, the unsuspecting lecturer was addressing the “right” students with enthusiasm, with only the odd uncomfortable glance to the