Preface / Henry P. Parkman -- Overview of neurogastroenterology-gastrointestinal motility and functional GI disorders: classification, prevalence, and epidemiology / Ann Ouyang and G. Richard Locke III -- Evolving concepts in the cellular control of gastrointestinal motility: neurogastroenterology and enteric sciences / Amelia Mazzone and Gianrico Farragia -- The gastrointestinal motility laboratory / Henry P. Parkman and William C. Orr -- New technologies for the evaluation of esophageal motility disorders: impedance, high-resolution manometry, and intraluminal ultrasound / Ikuo Hirano and John Pandolfino -- Esophageal motor and sensory disorders: presentation, evaluation, and treatment / Benson T. Massey -- The many manifestations of gastroesophageal reflux disease: presentation, evaluation, and treatment / Joel E. Richter -- New observations on the gastroesophageal antireflux barrier / Larry Miller [and others] -- Gastroparesis: symptoms, evaluation, and treatment / William L. Hasler -- Functional dyspepsia: mechanisms of symptom generation and appropriate management of patients / Michael Camilleri -- Irritable bowel syndrome: current approach to symptoms, evaluation, and treatment / Elizabeth J. Videlock and Lin Chang -- Constipation: evaluation and treatment of colonic and anorectal motility disorders / Satish S.C. Rao -- Gastrointestinal electrical stimulation for treatment of gastrointestinal disorders: gastroparesis, obesity, fecal incontinence, and constipation / Zhiyue Lin, Irene Sarosiek, and Richard W. McCallum -- Bacteria: a new player in gastrointestinal motility disorders--infections, bacterial overgrowth, and probiotics / Eamonn M.M. Quigley -- Gastrointestinal motility disorders in adolescent patients: transitioning to adult care / Manu R. Sood and Colin D. Rudolph.