Generalized-onset seizure generalized motor onset seizure true A Generalized Onset Motor Seizure and is what most people think of when they hear the word seizure. An older term for this type of seizure is grand mal. A person loses consciousness, muscles stiffen, and jerking movements are seen. As implied by the name, they combine the characteristics of tonic seizures and clonic seizures. https://www.epilepsydiagnosis.org/seizure/generalized-seizure-groupoverview.html