Certain Effects of Mescaline and Lysergic Acid on Psychological Functions
The Journal of Psychology July 1, 1954 Carney Landis, Johs. Clausen 23 citations
Mescaline and lysergic acid diethylamide (LSD) impair performance on psychological tests measuring sustained attention, coordination, and cognitive flexibility, with effects appearing within an hour and lasting several hours. Both substances produced similar patterns of disruption, though mescaline's effects were somewhat more pronounced at the doses tested. The findings suggest these hallucinogens interfere with higher mental functions beyond simple sensory changes.