The test records the electrical signals of the brain by using small electrodes that are attached to your scalp. Your brain cells communicate with each other using electrical impulses. They’re always working, even if you’re asleep. That brain activity will show up on recording as wavy lines. It’s a snapshot in time of the electrical activity in your brain. Our providers use this test to diagnose several conditions like: brain tumors, brain damage from a head injury, brain dysfunction from various causes, inflammation of the brain, seizure disorders including epilepsy, sleep disorders and stroke