Sign Up for a Free Account

This is an image preview.
Start a Free Account
to view the full image.

  • Nearly 3,000 illustrations, including video clips of neurologic disorders.

  • Every article is reviewed by our esteemed Editorial Board for accuracy and currency.

  • Full spectrum of neurology in 1,200 comprehensive articles.

Symmetric tonic seizures (video-EEG)

Ictal scalp EEG of a patient with symmetric tonic seizures. Most of the EEG is obscured by muscle artifact. Seizures originated in the left supplementary motor area. (Contributed by Dr. Barbara Jobst.)

Related Media

Associated Disorders

  • Autosomal dominant nocturnal frontal lobe epilepsy
  • Benign childhood epilepsy with centrotemporal spikes
  • Frontal lobe epilepsy
  • Neocortical epilepsy
  • Rasmussen syndrome
  • Temporal lobe epilepsy