simple partial seizure simple partial seizure with autonomic symptoms or signs These seizures are accompanied by autonomic symptoms or signs, such as abdominal discomfort or nausea which may rise into the throat (epigastric rising), stomach pain, the rumbling sounds of gas moving in the intestines (borborygmi), belching, flatulence and vomiting. Other symptoms may include pallor, flushing, sweating, hair standing on end (piloerection), dilation of the pupils, alterations in heart rate and respiration, and urination. A few people may experience sexual arousal, penile erection, and orgasm. autonomic seizure A simple partial seizure affecting the part of the nervous system that automatically controls bodily functions. abdominal epilepsy behavior_ontology 2011-05-27T02:51:31Z George Gkoutos