An EEG is a painless test that records the electrical activity of the brain and is used to identify abnormal patterns which can occur with seizures. In-office EEGs are performed here at PENS and take about an hour to complete. The physicians may also want your child to go home with our ambulatory EEG equipment in order to record a longer period of brain activity. Additionally, your child may also be recommended for long-term video EEG monitoring, which can be completed in our neurodiagnostic suite or at one of our local hospitals, if necessary. With video EEG, the brainwaves are recorded and physical activity is monitored with video cameras. The duration of testing generally lasts from 24-72 hours.