Generalized non-motor (absence) seizure (Human Phenotype Ontology identifier HP_0002121) can be described as follows. A generalized non-motor (absence) seizure is a type of a type of dialeptic seizure that is of electrographically generalized onset. It is a generalized seizure characterized by an interruption of activities, a blank stare, and usually the person will be unresponsive when spoken to. Any ictal motor phenomena are minor in comparison to these non-motor features. Also known as: Absence seizure, Absence seizures, Brief seizures with staring spells, Generalised non-motor (absence) seizure, Generalised non-motor seizure, Petit mal, Petit mal seizure, Petit mal seizures.