Abstract: Methods for the treatment of obesity, overweight, compulsive overeating, emotional overeating, binge eating, bulimia and anorexia comprises the steps of monitoring physiological parameters in the esophageal and/or gastrointestinal tract which are associated with gastric relaxation, gastric filling, gastric contractions, gastric secretions, and gastric emptying. The measurement are transmitted either directly to a receiver or via radiotelemetry to a receiver. The receiver has a data processor associated therewith, and the data processor produces audio and/or visual feedback for the person under treatment to hear and/or see. This feedback is used for purposes of teaching behavior modification and other psychotherapeutic purposes. In the most simple form of the invention, a warning sound is generated by the data processor indicating when sufficient food has been ingested.