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 …
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.
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.
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.
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 …
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 impulses.
What Is an EEG Test and How Does It Work? - Biology Insights
6 days ago · What is an EEG test? Get a complete guide to preparing for the procedure, understanding brain wave measurements, and interpreting results.