
EEG (electroencephalogram) - Mayo Clinic
May 29, 2024 · An EEG can find changes in brain activity that might aid in diagnosing brain conditions, especially epilepsy or another seizure condition. An EEG also might be helpful for diagnosing or treating: Brain tumors. Brain damage from a head injury. Brain disease that can have a variety of causes, known as encephalopathy.
EEG (Electroencephalogram): What It Is, Procedure & Results
Mar 8, 2024 · An EEG (electroencephalogram) is a safe, painless test that measures brain activity. Your healthcare provider may order an EEG to find out why you have certain symptoms like seizures, confusion or memory loss. They may use the term EEG to describe both the test (electroencephalography) and test results (electroencephalogram).
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.
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.
EEG (Electroencephalogram): Purpose, Procedure, and Risks - Healthline
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.
Understanding Your EEG Results | Normal & Abnormal EEGs
Aug 3, 2020 · An electroencephalogram of brain activity helps doctors evaluate such symptoms as seizures or memory loss. Learn how it works and what abnormal EEG results can mean.
What Is an EEG Used For? - Verywell Health
Feb 25, 2025 · An electroencephalogram (EEG) detects abnormal brain waves that cause seizures. EEG uses include diagnosing epilepsy, sleep disorders, and brain tumors.
Electroencephalogram (EEG) - Jefferson Health
An EEG is a painless test. It records your brain waves but does not transmit any sensations to your head. The EEG technician will measure and mark your head and then attach the electrodes (metal discs on a sticky patch) to your scalp. Sometimes, an elastic cap fitted with electrodes is …
Electroencephalogram (EEG) - NHS
An electroencephalogram (EEG) is a recording of brain activity. During this painless test, small sensors are attached to the scalp to pick up the electrical signals produced by the brain. These signals are recorded by a machine and are looked at by a doctor.
Electroencephalogram (EEG) - Harvard Health
Mar 22, 2025 · An electroencephalogram (EEG) is a recording of the brain's electrical activity. Metal electrodes attached to the skin on the outside of the head transform electrical activity into patterns, commonly called brain waves. A polygraph machine records the brain waves. In some cases, the waves are transmitted to a computer screen.