Dr. Leary's Concord Prison Experiment:
A 34 Year Follow-Up Study

Rick Doblin

Reflections on the Concord Prison Experiment and the Follow-Up Study

Ralph Metzner, Ph.D.

Editor's Note: This study, originally published in the Journal of Psychoactive Drugs, Oct-Dec 1998 issue is one in a series of long-term follow-ups to early psychedelic research that MAPS has sponsored. Previous MAPS Bulletins have reported on the Bastiaans LSD Research in the Netherlands, the Janiger LSD Research in the Los Angeles area and the Good Friday Experiment Follow-Up. The data gathered from these follow-up studies provide sufficient evidence of safety and efficacy to justify the initiation of new studies in which psychedelics are administered to patients. For information on the Journal of Psychoactive Drugs, see www.HAFCI.org/journal.

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