Seventy-five years after Sigmund Freud's death, the father of psychoanalysis' couch has remained a powerful symbol in our culture. The public radio show 99% Invisible interviewed President Michael Roth, a Freud historian, for an episode exploring the history and cultural significance of Freud's couch. Freud, and others of his time, used a couch as part of hypnosis--a cutting edge but controversial treatment. One of Freud's patients, a wealthy woman named Franny Moser who was struggling from multiple ailments, proved difficult to hypnotize. "He wasn't a very good hypnotist. He was kind of a clumsy hypnotist," explained Roth. "Freud would say, 'You're getting sleepy,…