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    Electroencephalogram (EEG)

    Electroencephalogram (EEG)

    Test Overview

    An electroencephalogram (EEG) is a test that measures and records the electrical activity of your brain. Special sensors (electrodes Click here to see an illustration.) are attached to your head and hooked by wires to a computer. The computer records your brain's electrical activity on the screen or on paper as wavy lines. Certain conditions, such as seizures, can be seen by the changes in the normal pattern of the brain's electrical activity.



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    Topic Contents
    Test Overview
    Why It Is Done
    How To Prepare
    How It Is Done
    How It Feels
    Risks
    Results
    What Affects the Test
    What To Think About
    References
    Credits