Sanity/Insanity: The Rosenhan Experiment

How do we know precisely what constitutes "normality" or mental illness? And if there is a difference, can anybody know it when they see it? Even professionals? In this episode of Stuff to Blow Your Mind, Robert and Joe explore the groundbreaking 1973 study that saw eight otherwise-healthy “pseudopatients” admitted to 12 different psychiatric facilities and diagnosed with mental illness.