Long Lasting Effects of LSD on Normals
Archives of General Psychiatry November 1, 1967 William McGlothlin 118 citations
A single 200μg dose of LSD produced measurable changes in anxiety and attitudes one week later, but no changes in creativity. The study assessed personality, attitude, value, interest, and performance changes in normal subjects after a single LSD session. Some significant changes appeared in anxiety and attitude tests, while creativity measures showed no significant effects. The authors note that evaluating lasting effects of hallucinogens involves more extradrug variables than most drug studies.