a method and apparatus for physiological modulation , including neural and gastrointestinal modulation , for the purposes of treating several disorders , including obesity , depression , epilepsy , and diabetes . the method and apparatus includes chronically implanted neural and neuromuscular modulators , used to modulate the afferent neurons of the sympathetic nervous system to induce satiety . furthermore , the method and apparatus includes neuromuscular stimulation of the stomach to effect baseline and intermittent smooth muscle contraction to increase gastric intraluminal pressure , which induces satiety , and stimulates sympathetic afferent fibers , including those in the sympathetic trunk , splanchnic nerves , and greater curvature of the stomach , to augment the perception of satiety .