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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 …

  2. EEG (Electroencephalogram): Uses, Procedure, Risks

    Dec 8, 2025 · An electroencephalogram (EEG) detects abnormal brain waves that cause seizures. EEG uses include diagnosing epilepsy, sleep disorders, and brain tumors.

  3. Electroencephalography - Wikipedia

    Electroencephalography (EEG) [1] is a method to record an electrogram of the spontaneous electrical activity of the brain. The bio signals detected by EEG have been shown to represent …

  4. 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.

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

    Dec 18, 2023 · An EEG, or electroencephalogram, is a test that records the electrical signals of the brain by using small metal discs (called electrodes) that are attached to your scalp.

  6. EEG - Penn Medicine

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

  7. Electroencephalography - Neurologic Disorders - MSD Manual ...

    The EEG is examined for asymmetries between the 2 hemispheres (suggesting a structural disorder), for excessive slowing (appearance of 1- to 4-Hz, 50- to 350-muV delta waves, as …

  8. EEG (Electroencephalogram): Purpose, Procedure, and Risks

    Nov 9, 2021 · An electroencephalogram (EEG) is a test used to evaluate the electrical activity in your brain. It can help detect potential problems with brain cell communication.

  9. Quick Facts: Electroencephalography (EEG) - Merck Manual ...

    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 · An electroencephalogram (EEG) is a test that measures and records the electrical activity of your brain. Special sensors called electrodes are attached to your head.