I came across the following quote in regard to John Weir Perry and thought I would tuck it here.

Quote

THE WORK OF DR. JOHN WEIR PERRY, M.D.

Although not specifically connected with clinical depression, the work of John Weir Perry deserves a mention here. Perhaps one of the foremost authority's in the mental health field for many years was Dr. John Weir Perry. After finishing his M.D. at Harvard Medical School and training at the C. G. Jung Institute of Zurich, he went on to establish Diabasis.

This was residential facility for young adults in their 20's with acute psychosis, e.g. a schizophrenic condition. Medication was not used in the treatment. In an 1997 interview, Dr. Perry spoke of an earlier study done at San Francisco State Hospital. With his colleague Dr. Julian Silverman, they set up a double blind experiment to identify which patients did well without medication. Using randomly assigned cases, each patient received a similar capsule of either thorazine or a placebo. Half the patients on the unit received medication and the other half the placebo. No one except the researchers knew which was which. The results: the half on medication had a return rate of 73 per cent and those who received the placebo (no medication) had a return rate of 8 per cent.

At one point in his career Dr. Perry was invited to present his findings on psychosis as a healing process to members of The New York Academy of Sciences.

Source: The Archetypal Connection

Note: If I can find a more authoritative quote on the study referenced above, I will link it in this space.