Some have proposed that sightings of UFOs are simply hallucinations or delusions. Some have used terms like "mass hysteria" to explain the sightings.
Alleged Mass Hysteria Cases: "Episodes of mass hysteria in African schools: A study of literature"
DMT Beings
Survey of entity encounter experiences occasioned by inhaled N,N- dimethyltryptamine
Dancing Plagues and Mass-Hysteria
About Mass Psychogenic Illness
Hallucination Articles
See also: Psychology
Experiencer Support
Subjective Effect Index of Psychoactive Substances
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