RT Book, Section A1 Boland, Robert A1 Haimovici, Florina A1 Oser, Megan A1 Mirsky, Pamela A1 Korzinek, Joshua A2 Barsky, Arthur J. A2 Silbersweig, David A. A2 Boland, Robert J. SR Print(0) ID 1138126113 T1 Depression and Gastrointestinal Disease T2 Depression in Medical Illness YR 2016 FD 2016 PB McGraw-Hill Education PP New York, NY SN 9780071819084 LK neurology.mhmedical.com/content.aspx?aid=1138126113 RD 2024/04/19 AB Psychiatry has enjoyed a particularly interesting relationship with the gastrointestinal (GI) illnesses since the brain–gut relationship was considered one of the core examples of how psychological stress could influence autonomic processes,1 until increasing understanding regarding the pathophysiology underlying stomach and duodenal disorders diminished interest in this relationship. Still, it remains a fact that the brain and digestive tract are intimately connected and more recent—and more modest—research reveals strong evidence for direct and indirect influences of one on the other. Considering that depression can be a consequence of both physiological and psychological stress, it should be no surprise that depressive disorders very commonly co-occur with GI disorders. This chapter will consider several examples of the complex relationship between depressive disorders and GI disorders, including peptic ulcer disease, irritable bowel syndrome (IBS), inflammatory bowel disease (IBD), and various diseases of the liver.