Generalized seizures originate from both cerebral hemispheres from the start.
By far, generalized convulsive seizures are the most common seizure type seen in veterinary medicine. These seizures are characterized by impaired consciousness coupled with bilateral motor signs of either a tonic-clonic , tonic, myoclonic, or even atonic nature. This seizure type is poorly documented in animals. Unlike partial seizures, generalized seizures are not necessarily associated with focal cerebrocortical disease. Other breeds with a high incidence of primary epilepsy suspected of having an inherited component are German shepherd, border collie, Irish setter, and golden retriever dogs.