mesial temporal lobe seizure including hippocampus true Seizures that arise in the mesial temporal lobe may be characterized by distinctive seizure onset features such as an autonomic seizure with rising epigastric sensation or abdominal discomfort, or cognitive seizure with deja vu/jamais vu, or emotional seizure with fear. Unpleasant olfactory and gustatory sensory seizures may also occur. These focal seizure types may occur in isolation or may be followed by the onset of behavioral arrest with slowly progressive impairment of awareness and oral (chewing, lip-smacking, swallowing, tongue movements) and manual automatisms. temporal lobe seizure