Skip to content

Putative Perception of Rotating Permanent Magnetic Fields following Ingestion of LSD

M. A. Persinger

Perceptual and Motor Skills October 1, 1998 DOI: 10.2466/pms.1998.87.2.601 (opens in new tab)

Study at a glance

AI-extracted from the abstract
Characteristics Case study Case report Peer reviewed
Sample size 3
Population Participants who had ingested psychotropic concentrations of lysergic acid diethylamide
Intervention Lysergic acid diethylamide
Topics LSD
Key findings Rotating magnets at 0.5 Hz induced reports of diffuse colored lights in three LSD-ingesting participants, with no such reports when magnets were stationary or absent. The authors suggest a possible link to historical ergot-related "magnet light" perceptions.

Abstract

While sitting alone in complete darkness, 3 participants who had ingested psychotropic concentrations of lysergic acid diethylamide reported diffuse blobs of white, purplish, or greenish-yellow lights as two horseshoe magnets rotated at 0.5 Hz. The experiences were not reported when the magnets were stationary or removed from the apparatus. The estimated peak-to-peak variation in field strength at the distance of perception was between 50 and 500 nanoTesla. An association between these results and possible ergot-induced perceptions of “magnet light” reported during the last century by von Reichenbach (1851) is suggested.

Comparable studies

Other case reports and case series on LSD, most cited first.

Study Year Design Participants
Lasting Neuropsychiatric Sequelae of (??)Methylenedioxymethamphetamine (???Ecstasy???) in Recreational Users Persons who ingested large doses of MDMA 1991 Case study n = 2
Further Studies in the Therapeutic Value of Lysergic Acid Diethylamide in Mental Illness Patients with mental illness 1957 Case series
Coma, Hyperthermia, and Bleeding Associated with Massive LSD Overdose a Report of Eight Cases People who self-administered large amounts of pure LSD powder intranasally 1975 Case series n = 8
Using a MDMA- and LSD-Group Therapy Model in Clinical Practice in Switzerland and Highlighting the Treatment of Trauma-Related Disorders Patients with chronic complex post-traumatic stress disorder (c-PTSD), dissociative,... 2022 Case series
Persistent Palinopsia Following Ingestion of Lysergic Acid Diethylamide (LSD) Patients who developed persistent palinopsia after LSD ingestion 1996 Case series n = 3

Citations in the library

Explore topics