A generalized myoclonic-atonic seizure is a type of generalized motor seizure characterized by a myoclonic jerk followed by an atonic motor component.
Comment:
A myoclonic-tonic seizure was previously called a myoclonic-astatic seizure. ILAE2017 does not currently consider myoclonic-atonic seizures to be a form of myoclonic seizure which is why it is classified as a motor seizure.