By RON WINSLOW
July 11, 2006; Page B1

In a study that could revive interest in researching the effects of psychedelic drugs, scientists said a substance in certain mushrooms induced powerful, mind-altering experiences among a group of well-educated, middle-age men and women.

Johns Hopkins Medical Institutions researchers conducted the study following carefully controlled, scientifically rigorous procedures. They said that the episodes generally led to positive changes in attitude and behavior among the 36 volunteer participants and that the changes appeared to last at least two months. Participants cited feelings of intense joy, “distance from ordinary reality,” and feelings of peace and harmony after taking the drug. Two-thirds described the effects of the drug, called psilocybin, as among the five most meaningful experiences of their lives.

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