Most febrile seizures are generalized tonic clonic seizures that cause stiffness, jerking and loss of consciousness.
大多数发热性惊厥为全身性强直-阵挛发作，可引起僵硬、抽搐和意识丧失。
英语百科
Generalised tonic-clonic seizure
Tonic–clonic seizures (formerly known as grand mal seizures) are a type of generalized seizure that affects the entire brain. Tonic–clonic seizures are the seizure type most commonly associated with epilepsy and seizures in general, though it is a misconception that they are the only type.