
EEG (electroencephalogram) - Mayo Clinic
2024年5月29日 · 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 epilepsy and other seizure conditions.
EEG (Electroencephalogram): What It Is, Procedure & Results
An EEG works by measuring the electrical signals or impulses that travel between your brain cells. EEGs track those signals by using electrodes that attach to wires that sense electrical impulses.
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 …
EEG (Electroencephalogram): Purpose, Procedure, and Risks
2021年11月9日 · 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.
What Is an EEG Used For? - Verywell Health
2025年2月25日 · An EEG is a test that records the electrical activity in your brain. It is most often used to diagnose epilepsy, but it can also be used for head injuries, brain tumors, stroke, and infections such as encephalitis.
EEG Test (Electroencephalogram): Purpose, Procedure, and Results - WebMD
2023年12月18日 · 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.
Understanding Your EEG Results | Normal & Abnormal EEGs
2020年8月3日 · Your doctor may recommend an EEG (electroencephalogram) to diagnose the cause of symptoms, such as seizures or memory loss. An EEG evaluates brain function by measuring the electrical activity within the brain. It records patterns of activity during rest and in response to certain stimuli.
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 provides evidence of how the brain functions over time. The EEG is used in …
Electroencephalography (EEG) - Neurologic Disorders - MSD …
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 depressed consciousness, encephalopathy, and dementia), and …
EEG - UCSF Health
2023年1月23日 · An electroencephalogram (EEG) is a test to measure the electrical activity of the brain. Electroencephalogram; Brain wave test; Epilepsy - EEG; Seizure - EEG. The test is done by an EEG technologist in your health care provider's office or at a hospital or lab. The test is done in the following way: