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How does an electroencephalogram test (EEG) work?

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Your brain cells create electrical signals that are picked up by the electrodes and sent to a polygraph. The machine illustrates them in separate graphs on moving paper using an ink pen or on a computer screen.

SOURCE: National Migraine Association.

Reviewed by Stephen D. Silberstein on July 17, 2017

SOURCE: National Migraine Association.

Reviewed by Stephen D. Silberstein on July 17, 2017

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How do I prepare for an electroencephalogram test (EEG)?

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