increasing very rapidly. >> in l.a., we were all kind of, you know, smoking god's herb, whereas up in san francisco, it seemed like they were experimenting more with mind expansion, you know? ♪ >> ken kesey took classes of writing at stanford university, and he writes the great novel "one flew over the cuckoo's nest," and this makes kesey a celebrity. >> while i was at stanford, i was given the opportunity to go to the stanford hospital and take part in the lsd experiments. >> kesey had volunteered to do tests for lsd, a government-sponsored test. >> lsd was isolated in a pharmaceutical company in switzerland. >> do you feel happy? >> yes. >> you have tears in your eyes.