
Your child's hair should be clean and free of oils, sprays, and conditioner to help the electrodes stick to the scalp. If your child is having an EEG, preparation is minimal. They're sometimes used to evaluate brain activity after a severe head injury or before a heart transplant or liver transplant. EEGs also can identify causes of other problems, such as sleep disorders and changes in behavior.

Most EEGs are done to diagnose and monitor seizure disorders. Through an EEG, doctors can look for abnormal patterns that indicate seizures and other problems.


Normal electrical activity in the brain makes a recognizable pattern. Small metal discs with thin wires (electrodes) are placed on the scalp, and then send signals to a computer to record the results. An electroencephalogram (EEG) is a test used to find problems related to electrical activity of the brain.Īn EEG tracks and records brain wave patterns.
