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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. 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. Electroencephalography - Wikipedia

    The recording of these signals is referred to as electrocorticography (ECoG), subdural EEG (SDE), intracranial EEG (iEEG), or stereotactic EEG (SEEG). The signal recorded from ECoG …

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

    What Is Electroencephalography (EEG)? Picture of a child having an EEG. The electroencephalogram (EEG) is a measure of brain waves. It is a readily available test that …

  6. EEG Test (Electroencephalogram): Purpose, Procedure, and Results - WebMD

    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.

  7. 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.

  8. 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 …

  9. Electroencephalogram - StatPearls - NCBI Bookshelf

    An electroencephalogram (EEG) is an essential tool that studies the brain's electrical activity. Despite developing more advanced imaging techniques, EEG remains the essential …

  10. EEG: MedlinePlus Medical Encyclopedia

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