The Harvard Psilocybin Project began in 1960 after Timothy Leary experienced magic mushrooms in Mexico, marking a transition from traditional academic psychology to a career focused on consciousness research. His subsequent clinical trials involving psychedelics polarized the scientific community, eventually leading to his dismissal from Harvard and a transformation into a prominent counterculture figure.
Academic Foundation and Military Service
Born in 1920 in Springfield, Massachusetts, Timothy Leary pursued an extensive education before entering the field of psychology. He attended the College of the Holy Cross, the University of Alabama, Washington State University, and the University of California, Berkeley. His early adult years were marked by military service during World War II, where he served in the United States Army as a psychometrician. By 1950, he had earned his PhD in clinical psychology from the University of California, Berkeley.
Twenty questions, eight minutes on the clock, and a percentile measured against everyone who has taken it. No sign-up.
Take the IQ test →The Harvard Years and Psychedelic Research
As a clinical psychologist at Harvard University, Leary initiated rigorous testing of psilocybin and LSD, which were then legal substances in the United States. His experiments, including the Concord Prison Experiment and the Marsh Chapel Experiment, aimed to evaluate the therapeutic potential of these compounds. Faculty colleagues eventually challenged the scientific legitimacy and ethical standards of his research, particularly due to his practice of consuming psychedelics alongside his subjects. This controversy resulted in his departure from Harvard in May 1963.
Counterculture Influence and Later Thought
Following his exit from mainstream academia, Leary became a vocal proponent of psychedelic use, famously popularizing phrases such as turn on, tune in, drop out. During the 1960s and 1970s, he was arrested 36 times and was labeled by President Richard Nixon as the most dangerous man in America. In his 1977 publication Exo-Psychology, he detailed an eight-circuit model of consciousness. His later work expanded into transhumanism, human space migration, and life extension, areas he collectively categorized under the acronym SMI²LE.
Fast facts
- Born: 1920, Springfield, United States
- Died: 1996, Beverly Hills, United States
- Occupation: Psychologist, writer, actor
- Education: University of California, Berkeley; University of Alabama; College of the Holy Cross; Washington State University
- Key Employers: Harvard University, University of California, Berkeley, Kaiser Family Foundation
- Religious Affiliation: Hinduism
- Primary Field: Psychology
Questions readers ask
What was Leary's primary research focus at Harvard?
He focused on the therapeutic effects of psilocybin and LSD, conducting studies such as the Concord Prison Experiment and the Marsh Chapel Experiment.
Why was Leary dismissed from Harvard University?
Faculty members questioned the ethics and scientific validity of his research, citing his use of psychedelics with subjects and alleged pressure on students to participate.
Achievements
- Affiliated with University of California, Berkeley, Kaiser Family Foundation and Harvard University
- Educated at University of California, Berkeley and College of the Holy Cross
- Worked as psychologist, writer and actor


