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Irritable Bowel Syndrome

  1. Susan K. Johnson

Published Online: 30 JAN 2010

DOI: 10.1002/9780470479216.corpsy0470

Corsini Encyclopedia of Psychology

Corsini Encyclopedia of Psychology

How to Cite

Johnson, S. K. 2010. Irritable Bowel Syndrome. Corsini Encyclopedia of Psychology. 1–2.

Author Information

  1. University of North Carolina-Charlotte

Publication History

  1. Published Online: 30 JAN 2010


Irritable bowel syndrome (IBS) is a complex, multidetermined syndrome involving altered gut reactivity, altered pain perception, and brain-gut dysregulation that is modulated by psychosocial and biological factors (Palsson & Drossman, 2005). The symptomatology of IBS is a combination of abdominal pain or discomfort, rectal distension, and altered bowel habit (i.e., diarrhea or constipation).


  • medically unexplained illness;
  • gut reactivity;
  • stress