Lysergic Acid Diethylamide (LSD-25) and Ego Functions

Gerald D. Klee

Research output: Contribution to journalArticle


A series of psychological studies with lysergic acid diethylamide (LSD-25) performed by myself and my associates with several hundred “normal” human subjects are described. The experimental data are discussed in relation to psychoanalytic ego psychology with an effort to demonstrate the usefulness of this theoretical model in understanding the effects of LSD. The field of discussion is also extended by introducing some tentative theoretical formulations which attempt to correlate certain psychological and physiological phenomena associated with LSD.

Original languageEnglish (US)
Pages (from-to)461-474
Number of pages14
JournalArchives of general psychiatry
Issue number5
StatePublished - May 1963

ASJC Scopus subject areas

  • Arts and Humanities (miscellaneous)
  • Psychiatry and Mental health

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