The 1980s saw psychologists discovering a lot of "repressed" memories in patients. As it turned out, they weren't so much memories as inventions. Are all those patients stuck with false memories of Satanic abuse and alternate personalities forever?
In 1973, the book Sybil took the world by storm. A pioneering psychiatrist took a very troubled young woman under her wing. After a lot of therapy and a lot of drugs, she discovered that the eponymous Sybil had many alternate personalities. What was the source of these alternate personalities? Extended therapy revealed that Sybil's mind created them to deal with the horrific abuse she experienced at her mother's hands. As therapy continued, the doctor learned more about the abuse by uncovering memories repressed by Sybil's conscious mind for decades.