Residual Effects of LSD on EGO Functioning: An Exploratory Study with the Rorschach Test

Abstract

The Rorschach test was administered to three groups: Ss having taken LSD many times (30+), few times (1 to 5) and no times. The test protocols were scored for ego disturbance. The two LSD groups had significantly more indicators than the non-LSD group but were not significantly different from each other. Indicators in these two groups were concentrated in areas of relation to reality and defensive operations.