![]() They are very thin wires that are placed into your cheek muscle near your jaw. Sphenoidal (sfee-NOY-dle) electrodes are sometimes used during video-EEG monitoring.If a routine EEG does not give your doctor all the necessary information, another EEG test with special types electrodes may be recommended. Generalized epilepsy is suggested by spike-and-wave discharges that are widely spread over both side of the brain, especially if they begin in both sides at the same time.If you have partial seizures, spikes and sharp waves on the EEG in a specific area of the brain, such as the a temporal lobe, can show where the seizures are coming from. ![]() Your doctor may refer to these waves as "epileptiform abnormalities" or "epilepsy waves." They can look like spikes, sharp waves, and spike-and-wave discharges.
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