Jones of the Tennessee Department of Health compiles the following symptoms based on their commonality in outbreaks occurring in 1980–1990: Symptom
The DSM-IV-TR does not have specific diagnosis for this condition but the text describing conversion disorder states that "In 'epidemic hysteria', shared symptoms develop in a circumscribed group of people following 'exposure' to a common precipitant." of the University of Maiduguri, Nigeria contest Wessely's definition and describe outbreaks with qualities of both mass motor hysteria and mass anxiety hysteria. While his definition is sometimes adhered to, others such as Ali-Gombe et al. Initial cases can be identified and the spread is gradual. It occurs in any age group and prior tension is present. Mass motor hysteria "consists of abnormalities in motor behaviour.Prior tension is absent and the rapid spread is by visual contact." Mass anxiety hysteria "consists of episodes of acute anxiety, occurring mainly in schoolchildren.a preponderance of female participants.īritish psychiatrist Simon Wessely distinguishes between two forms of MPI:.a spread that moves down the age scale, beginning with older or higher-status people.symptoms that are spread via sight, sound or oral communication.symptoms with rapid onset and recovery.symptoms that are transient and benign.symptoms that have no plausible organic basis.Qualities of MPI outbreaks often include: It is not well understood and its causes are uncertain. MPI is distinct from other types of collective delusions by involving physical symptoms. It is the rapid spread of illness signs and symptoms affecting members of a cohesive group, originating from a nervous system disturbance involving excitation, loss, or alteration of function, whereby physical complaints that are exhibited unconsciously have no corresponding organic causes that are known.
Mass psychogenic illness ( MPI), also called mass sociogenic illness, mass psychogenic disorder, epidemic hysteria, involves the spread of illness symptoms through a population where there is no infectious agent responsible for contagion. Headache, dizziness, nausea, abdominal pain, cough, fatigue, sore throatĬhildhood or adolescence, intense media coverageĪctual diseases, mass delusions, somatic symptom disorder Mass hysteria, epidemic hysteria, mass sociogenic illness, mass psychogenic disorderĭancing plagues of the Middle Ages are thought to have been caused by mass hysteria. Medical condition Mass psychogenic illness
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