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Classified as a "conversion disorder" by the DSM-IV, a psychogenic disease is a condition in which mental stressors cause physical symptoms matching other disorders. The manifestation of physical symptoms without biologically identifiable cause results from disruptions in normal brain function due to psychological stress.
Mass psychogenic illness (MPI), also called mass sociogenic illness, mass psychogenic disorder, epidemic hysteria or mass hysteria, involves the spread of illness symptoms through a population where there is no infectious agent responsible for contagion. [2]
Mass psychogenic illness is the spontaneous manifestation of the same or similar hysterical physical symptoms by more than one person. A common manifestation occurs when a group of people believe they are experiencing a similar disease or ailment, sometimes referred to as epidemic hysteria.
Psychogenic pain is physical pain that is caused, increased, or prolonged by mental, emotional, or behavioral factors, without evidence of physical injury or illness. [ 2 ] [ 3 ] [ 4 ] Headache, back pain, or stomach pain are some of the most common types of psychogenic pain. [ 5 ]
However, it is not uncommon for patients with neurological disease to also have conversion disorder. [ 15 ] In excluding neurological disease, the neurologist has traditionally relied partly on the presence of positive signs of conversion disorder, i.e. certain aspects of the presentation that were thought to be rare in neurological disease but ...
The number of people with PNES ranges from 2 to 33 per 100,000. [6] PNES are most common in young adults, particularly women. [6] The prevalence for PNES is estimated to make up 5–20% of outpatient epilepsy clinics; 75–80% of these diagnoses are given to female patients and 83% are to individuals between 15 and 35 years old.
June bug epidemic (1962) – A mysterious disease broke out in a dressmaking department of an American textile factory. The symptoms included numbness, nausea, dizziness, and vomiting. The symptoms included numbness, nausea, dizziness, and vomiting.
A psychogenic effect is one that originates from the brain instead of other physical organs (i.e. the cause is psychological rather than physiological) and may refer to: Psychogenic pain; Psychogenic disease; Psychogenic amnesia; Psychogenic cough, i.e. a habit cough; Mass psychogenic illness