A psychogenic effect is one that originates from the
brain
A brain is an organ that serves as the center of the nervous system in all vertebrate and most invertebrate animals. It is located in the head, usually close to the sensory organs for senses such as vision. It is the most complex organ in a v ...
instead of other physical organs (i.e. the cause is
psychological rather than
physiological
Physiology (; ) is the scientific study of functions and mechanisms in a living system. As a sub-discipline of biology, physiology focuses on how organisms, organ systems, individual organs, cells, and biomolecules carry out the chemical ...
) and may refer to:
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Psychogenic pain
Psychogenic pain is physical pain that is caused, increased, or prolonged by mental, emotional, or behavioral factors.
Headache, back pain, or stomach pain are some of the most common types of psychogenic pain. Commonly it accompanies or is indu ...
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Psychogenic disease Classified as a "conversion disorder" by the DSM-IV, a psychogenic disease is a disease in which mental stressors cause physical symptoms of different diseases. The manifestation of physical symptoms without biologically identifiable causes results ...
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Psychogenic amnesia
Psychogenic amnesia or dissociative amnesia is a memory disorder characterized by sudden retrograde episodic memory loss, said to occur for a period of time ranging from hours to years to decades. More recently, "dissociative amnesia" has been d ...
*Psychogenic cough, i.e. a
habit cough A habit cough is a chronic cough that has no underlying organic cause or medical diagnosis, and does not respond to conventional medical treatment. This is sometimes called tic cough, somatic cough syndrome and previously psychogenic cough, but with ...
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Mass psychogenic illness
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 c ...
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