Mass psychogenic illness

Mass Psychogenic Illness (MPI), also known as mass hysteria, mass sociogenic illness, or epidemic hysteria, is a social phenomenon in which physical symptoms spread rapidly among a cohesive group of people, without a corresponding organic cause. This condition is rooted in the nervous system, involving excitation, loss, or alteration of function, and presents physical complaints unconsciously exhibited by the affected individuals.

Characteristics and Manifestations

MPI often occurs in close-knit groups, such as schools, workplaces, or communities, and is more commonly reported among females. Symptoms can vary widely, ranging from fainting, nausea, headaches, trembling, hyperventilation, to even more complex behaviors. These symptoms, although real and often distressing to the individuals, cannot be traced back to a physical cause.

Causes

The specific triggers for MPI are not well understood, but it often occurs in situations of extreme stress, anxiety or during threatening situations. It is believed that the phenomenon is a collective response to psychological distress, and can be influenced by cultural and social factors.

Diagnosis

Diagnosis of MPI can be challenging due to the real nature of the symptoms. It is primarily a diagnosis of exclusion, made when no physical or organic cause can be found. This involves a thorough medical examination and consideration of the social and psychological context in which the symptoms occur.

Treatment and Management

Treatment for MPI primarily involves reassurance and education for those affected. In some cases, psychological interventions, such as cognitive behavioral therapy, may be beneficial. The goal is to reduce anxiety and stress, thereby alleviating the physical symptoms.

Prognosis

Prognosis for MPI is generally good. Once the underlying stressor is removed or the situation is managed, symptoms often resolve, although in some cases they may persist for a longer period.

See Also

• Conversion disorder
• Collective behavior
• Sociology of health and illness

Mass psychogenic illness Resources
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• Bartholomew, R. E., & Wessely, S. (2002). Protean nature of mass sociogenic illness: From possessed nuns to chemical and biological terrorism fears. The British Journal of Psychiatry, 180(4), 300-306.
• Boss, L. P. (1997). Epidemic hysteria: a review of the published literature. Epidemiologic reviews, 19(2), 233-243.