Electroencephalogram Medical Test

An electroencephalogram is a test that measures and records the electrical activity of your brain by using sensors attached to your head and connected by wires to a computer. Certain conditions, such as seizures, can be detected by observing changes in the normal pattern of the brain's electrical activity. Electroencephalograms are frequently used in experimentation because the process is non-invasive to the research subject. This test is only one part of the investigation into diagnosing epilepsy. Electrical currents are not measured, but rather voltage differences between different parts of the brain. This test causes no discomfort. Although having electrodes pasted onto your skin may feel strange, they only record activity and do not produce any sensation. Electroencephalogram is used to help diagnose the presence and type of seizure disorders, to look for causes of confusion, and to evaluate head injuries, tumors, infections, degenerative diseases, and metabolic disturbances that affect the brain. It cannot be used to measure intelligence or diagnose mental illness. It is a safe, easy, and painless test that takes approximately one hour. Another name for electroencephalogram is brain wave test.

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