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Mind-body disorder theory
Psychotherapy based treatments
One of the first references to the concept of
an "irritable bowel" appeared in the Rocky Mountain Medical
Journal in 1950.[30] The term was used to categorize patients
who developed symptoms of diarrhea, abdominal pain,
constipation, but where no well-recognized infective cause could
be found.
Early theories suggested that the Irritable
Bowel was caused by a psychosomatic, or mental disorder. One
paper from the 1980s investigated "learned illness behavior" in
patients with IBS and peptic ulcers.[31] Another study suggested
that both IBS and stomach ulcer patients would benefit from 15
months of psychotherapy.[32] Later, it would be found that most
stomach ulcers were caused by a bacterial infection with
Helicobacter pylori.[33]
Additional publications suggesting the role of
brain-gut "axis" appeared in the 1990s, such as a study entitled
Brain-gut response to stress and cholinergic stimulation in IBS
published in the Journal of Clinical Gastroenterology in
1993.[34] A 1997 study published in Gut magazine suggested that
IBS was associated with a "derailing of the brain-gut axis."[35]
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