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Generalized Seizures
Generalized seizures are thought to involve both sides of the brain spontaneously at seizure onset. Specialists recognize two classes of generalized seizures based on how they manifest themselves. Nonconvulsive generalized seizures alter consciousness but do not cause convulsions; convulsive generalized seizures also alter consciousness and cause repetitive jerking and stiffening movements.

Generalized epilepsy is when a person has more than one generalized seizure.