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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. 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 …

  3. 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.

  4. 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.

  5. Electroencephalogram (EEG) | Neurology - UC Davis Health

    Jul 10, 2025 · An electroencephalogram (EEG) is a noninvasive, painless test that detects unusual electrical activity in your brain. Cells in your brain send signals through electrical …

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

    Nov 9, 2021 · An EEG is a test that measures your brain waves and helps detect abnormal brain activity. The results of an EEG can be used to rule out or confirm medical conditions.

  7. 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.

  8. Electroencephalography (EEG) Prep, During, After, Results, Cost

    Learn more about the electroencephalogram (EEG), a test that measures brain waves and evaluates brain disorders. Learn more about the test, preparation, results, and more.

  9. 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 …

  10. EEG - Penn Medicine

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