“Electroencephalography (EEG) is a simple, painless procedure in which the brain’s electrical activity is recorded as wave patterns, printed on paper, and/or recorded in a computer. EEG can help identify the following:
Seizure disorders
Sleep disturbances
Certain metabolic or structural disorders of the brain
For example, EEG can help identify where a seizure originates and show changes in electrical activity associated with confusion, which may result from disorders such as liver failure ( liver encephalopathy) or certain drugs.”
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