Dr. Leary's Concord Prison Experiment: A 34-Year Follow-up Study
Journal of Psychoactive Drugs December 1, 1998 R Doblin 29 citations
A long-term follow-up to the Concord Prison Experiment (1961–1963) examined criminal justice records of 21 of the original 32 prisoners who received psilocybin-assisted group psychotherapy. The follow-up found that earlier published claims of reduced recidivism were erroneous. The original researchers had emphasized the need for comprehensive post-release group support, but such services were not sufficiently provided. Whether a new program combining psilocybin-assisted therapy with post-release support could lower recidivism remains an open empirical question.