To do this, usually between 16 and 25 electrodes (small, flat metal discs) need to be placed on your scalp, over different areas of your brain. How is this test performed?Īn EEG involves measuring and recording the electrical activity within your brain. encephalitis (inflammation of the brain) ĭoctors can also use an EEG to confirm brain death in someone who is in a coma.Some of the other conditions for which doctors may want to perform an EEG include: What conditions can be diagnosed using an EEG?Īn EEG can be used to help diagnose and assess several conditions that affect the brain, particularly epilepsy (a condition that causes seizures). An electroencephalogram (also called an EEG) is a special test that records these electrical signals that occur within the brain. Your brain is active all the time, and its cells communicate with each other via electrical signals.
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