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Home > Health Library > Electroencephalogram (EEG)
An electroencephalogram (EEG) is a procedure that measures the electrical impulses in the brain. An EEG is done by placing small sensors (electrodes) on a person's scalp to detect the electrical impulses moving through the brain.
An EEG is often used to help determine the presence and cause of seizures. The amount and pattern of electrical activity is important in diagnosing seizure disorders.
Current as of: June 17, 2021
Author: Healthwise Staff
Medical Review:Anne C. Poinier MD - Internal Medicine & Adam Husney MD - Family Medicine & Martin J. Gabica MD - Family Medicine & Karin M. Lindholm DO - Neurology
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