WebMD
Font Size
A
A
A

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.

Author Jan Nissl, RN, BS
Editor Susan Van Houten, RN, BSN, MBA
Associate Editor Tracy Landauer
Primary Medical Reviewer Patrice Burgess, MD
- Family Medicine
Specialist Medical Reviewer Barrie J. Hurwitz, MD
- Neurology
Last Updated September 1, 2006

WebMD Medical Reference from Healthwise

Last Updated: September 01, 2006
This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.
@ 1995-2007, Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.