Psychosocial factors in functional gastrointestinal disorders: an evolving phenomenon.

The psychosocial aspect of functional gastrointestinal disorders have a long and complicated investigative history. Emerging from the 1930s when the observations of individual investigators and clinicians was the norm we have evolved in the last 25 years to an increasingly sophisticated era of scientific observation using standardized nosology, validated psychometric instruments and have made use of emerging technology such as brain imaging, barostat testing and other technologies. The application of the scientific method to help improve out understanding of the relationship of psychosocial factors as they relate to gastrointestinal illnesses is slowly but surely revolutionizing gastroenterology practice. It is the purpose of this paper to review the history of "Psychosomatic Gastroenterology" to review the dimensions of psychosocial factors as they relate to gastroenterology and to review the emerging technologies which are helping us to develop this knowledge. Finally we will attempt to speculate on where the field will be going in the future.