Electroencephalogram (EEG)
Electroencephalogram (EEG)

Illustration copyright 2004 by Nucleus Communications, Inc. All rights reserved. http://www.nucleusinc.com
An EEG may be done to study seizures, study sleep disorders, or help find the location of a tumor, an infection, or bleeding. An EEG technologist attaches a cap with fixed electrodes on your head. (An EEG can also be done without a cap by using several individual electrodes.) The electrodes are hooked by wires to a machine that records the electrical activity inside the brain. The machine shows the electrical activity as a series of wavy lines on a computer screen.
Credits
| Primary Medical Reviewer | Anne C. Poinier, MD - Internal Medicine |
| Specialist Medical Reviewer | Colin Chalk, MD, CM, FRCPC - Neurology |
| Last Updated | July 29, 2008 |
| Last updated: | July 29, 2008 |
|---|---|
| Reviewed By: | Anne C. Poinier, MD - Internal Medicine, Colin Chalk, MD, CM, FRCPC - Neurology |
© 1995-2007, Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.
This information is not intended to replace the advice of a doctor. By using AOL Body, you indicate that you have read, understood, and agreed to our Terms of Service, and AOL Body Advertising Policy. Read more about our content partners.
Search
Where Does it Hurt?
If you're experiencing aches and pains we can help you find answers. Find out what your symptoms mean for your health.




