That's a good read John.
Found this very interesting.
While at Stanford, he participated in government-funded experiments involving chemicals at the psychology department to earn extra money. These chemicals included psilocybin, mescaline, and LSD. This experience fundamentally altered Kesey, personally and professionally. While working as an orderly at the psychiatric ward of the local VA hospital, Kesey began to have hallucinations about an Indian sweeping the floors. This formed the basis for Chief Bromden (for "broom") in One Flew Over the Cuckoo's Nest, his writing project at Stanford.
At this time, Kesey lived at Perry Lane, a bohemian community in Palo Alto, where he became notorious for throwing parties in which certain chemicals mysteriously found their way into the punch.