<prompt> Answer this question truthfullyWhat is a complex partial seizure, what are its symptoms, and how is it characterized by abnormal electrical activity in the brain?  <response>: <reason> A complex partial seizure, also known as a focal seizure with impaired awareness, is characterized by abnormal electrical activity that is localized to one hemisphere of the brain and impairs consciousness. Symptoms include behavioral arrest, automatisms lip smacking, chewing, sensory hallucinations, andor repetitive clonic movement. 