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4. EEGs and Epilepsy

EEGs play a vital role in diagnosing brain disorders. Doctors analyze the electrical brain impulses, which show up as wavy lines on an EEG recording. These lines have a specific pattern that indicates epileptiform seizure activity in the brain. Doctors can see the brain activity change directly on the EEG reading. Sometimes, people who have epilepsy experience seizures that begin when they see flashing lights -- photosensitive epilepsy. During an EEG, a patient may be asked to look at a light that flashes at different speeds. The EEG reading and the patient's reaction determine the diagnosis for photosensitive epilepsy.

epilepsy test

fotografixx / Getty Images

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This site offers information designed for educational purposes only. You should not rely on any information on this site as a substitute for professional medical advice, diagnosis, treatment, or as a substitute for, professional counseling care, advice, diagnosis, or treatment. If you have any concerns or questions about your health, you should always consult with a physician or other healthcare professional.