Published online by Cambridge University Press: 29 January 2018
Favourable results have been reported from the use of lysergide in a wide variety of psychiatric conditions, but controlled studies (2, 3, 4) have not confirmed the existence of a therapeutic effect. In this experiment, alcoholics and neurotics who had been referred by Saskatoon psychiatrists for LSD treatment were allocated at random to Treatment and Control groups after undergoing a series of psychological tests. The members of the Treatment group were offered up to five LSD experiences at intervals of two weeks, whereas those in the Control group were informed that this type of therapy would be made available to them after a twelve-month waiting period. Accounts of the LSD experiences were sent to the referring psychiatrists, who were expected to continue to provide standard treatment to the members of both groups.