An electroencephalogram (EEG) is a test that measures the electrical activity in the brain (brain waves). Small, round discs with wires (electrodes) are placed on the scalp during the test. The electrodes are not painful to your child. An EEG usually takes about 60 to 90 minutes.
Your child may need this test if there are signs like:
EEGs are usually done when children have developmental delays or symptoms such as loss of consciousness, abnormal movements or behavior. The EEG will help tell if seizures or other brain conditions are the cause of the symptoms. Your child’s healthcare provider may have other reasons to recommend an EEG.