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Behavioral Effects of Lysergic Acid Diethylamide (LSD-25)Space Localization in Normal Adults as Measured by the Apparent Horizon
SEYMOUR WAPNER, Ph.D.;
DONALD M. KRUS, Ph.D.
AMA Arch Gen Psychiatry 1959;1(4):417-419.
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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,3 and under conditions of energizing and tranquilizing drugs,1 and for various groups: depressed manic-depressive, and elated manic-depressive groups2; children of various ages,4 etc. Of particular pertinence to the present paper is a developmental study using children of ages ranging from 6 to 20 years.4 In that
. . . [Full Text PDF of this Article]
Author Affiliations
Worcester, Mass.
Department of Psychology and Institute of Human Development, Clark University.
Dr. Harry Freeman, Director of Research, Medfield State Hospital, Medfield, Mass., cooperated in the execution of this study.
Footnotes
Submitted for publication Jan. 28, 1959.
This investigation was supported by a grant, MY-2262, from the National Institute of Mental Health of the National Institutes of Health, U. S. Public Health Service.
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