Behavioral Effects of Lysergic Acid Diethylamide (LSD-25)

The behavioral effects of LSD-25 have been studied using organismic and developmental theory. This paper focuses on the apparent horizon—the point in space perceived to be at eye level—as a measure of spatial organization. This dimension has been examined under conditions of success and failure, with energizing and tranquilizing drugs, and in depressed and elated manic-depressive groups, as well as in children aged 6 to 20 years. The present work extends this line of research by testing implications of the theoretical framework in a situation involving the apparent horizon.

Study at a glance

Abstract

The behavioral effects of lysergic acid diethylamide (LSD-25) have been studied programmatically in the Clark Laboratories, utilizing the framework of organismic and developmental theory. In the course of testing some of the implications of these theoretical positions, a number of situations have been developed to study space localization. This paper involves the situation dealing with the so-called apparent horizon, i. e., that point in space perceived to be at eye level. This dimension of spatial organization has been studied extensively under various test conditions, e. g., under conditions of success and failure,3and under conditions of energizing and tranquilizing drugs,1and for various groups: depressed manic-depressive, and elated manic-depressive groups2; children of various ages,4etc. Of particular pertinence to the present paper is a developmental study using children of ages ranging from 6 to 20 years.4In that