About 122,000 results
Open links in new tab
  1. 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 the postsynaptic …

  2. EEG (electroencephalogram) - Mayo Clinic

    May 29, 2024 · During an EEG, flat metal discs called electrodes are attached to the scalp.

  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. 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. These are small metal disks with thin wires. …

  5. 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 paraclinical tool for …

  6. 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.

  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 occurs in …

  8. 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. Your brain cells...

  9. 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.

  10. Electroencephalography | Definition, Procedure, & Uses | Britannica

    Nov 28, 2025 · The recording produced by such an instrument is called an electroencephalogram, commonly abbreviated EEG. To record the electrical activity of the brain, 8 to 16 pairs of electrodes …