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  1. EEG (electroencephalogram) - Mayo Clinic

    May 29, 2024 · An EEG records the electrical activity of the brain through electrodes put on the scalp. EEG results show changes in brain activity. This may help diagnose brain conditions such as …

  2. Electroencephalogram (EEG): What It Is, Procedure & Results

    An EEG (electroencephalogram) is a test that evaluates brain function. Healthcare providers order an EEG to diagnose brain issues like epilepsy.

  3. Electroencephalogram (EEG) - Johns Hopkins Medicine

    An EEG is a test that detects abnormalities in your brain waves, or in the electrical activity of your brain. During an EEG, electrodes are pasted onto your scalp.

  4. What It's Like to Have an EEG Test Done - Verywell Health

    Dec 8, 2025 · An electroencephalogram (EEG) test is used to check for seizures and diagnose epilepsy. EEG can also be used to diagnose other medical conditions like sleep disorders or brain injuries, as …

  5. EEG Test (Electroencephalogram): Purpose, Procedure, and Results

    Dec 18, 2023 · An EEG is a test that helps your doctor diagnose brain disorders like epilepsy or a sleep disorder. You can have it in a doctor's office, a sleep lab, or at home.

  6. EEG: MedlinePlus Medical Encyclopedia

    Jan 13, 2025 · An electroencephalogram (EEG) is a test to measure the electrical activity of the brain.

  7. EEG Procedure - Simply Psychology

    Jun 12, 2025 · An EEG (electroencephalogram) records your brain’s electrical activity using painless electrodes placed on the scalp. It measures brainwaves like delta, theta, alpha, beta, and gamma, …

  8. Electroencephalogram Test (EEG): Procedure and Results - GoodRx

    Nov 19, 2025 · An electroencephalogram test (EEG) measures brain waves. It’s used to diagnose conditions like epilepsy. Learn about the typical EEG procedure and how to prepare.

  9. Electroencephalography (EEG) - The Merck Manuals

    EEG is a simple, painless test that records your brain’s electrical activity to see how well different areas of your brain are working. Doctors use EEG to check problems such as seizures.

  10. Electroencephalogram (EEG) - Kaiser Permanente

    Dec 3, 2024 · Electroencephalogram (EEG) An electroencephalogram (EEG) is a test that measures and records the electrical activity of your brain. Special sensors called electrodes are attached to …