Tonic-clonic seizures are the type of epileptic seizure most people recognise. In the past they were called grand-mal seizures. Tonic-clonic seizures can have a generalised onset, meaning they affect ...

Tonic seizures can be generalised onset, meaning they affect both sides of the brain from the start. Or they can be focal onset, meaning they start in just one side of the brain. If a tonic seizure ...