EEG (electroencephalogram) - Mayo Clinic
2024年5月29日 · An electroencephalogram (EEG) is a test that measures electrical activity in the brain. This test also is called an EEG. The test uses small, metal discs called electrodes that attach to the scalp. Brain cells communicate via electrical impulses, and this activity shows up as wavy lines on an EEG recording.
EEG (Electroencephalogram): What It Is, Procedure & Results
2024年3月8日 · An electroencephalogram (EEG) tests your brain function. Healthcare providers order EEGs to diagnose conditions that affect your brain. Providers may use the term EEG for the test itself and what it shows.
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. They detect tiny electrical charges that result from the activity of your brain cells.
EEG (Electroencephalogram): Purpose, Procedure, and Risks - Healthline
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.
Electroencephalography - Wikipedia
Electroencephalography (EEG) [1] is a method to record an electrogram of the spontaneous electrical activity of the brain. The biosignals detected by EEG have been shown to represent the postsynaptic potentials of pyramidal neurons in the neocortex and allocortex. [2]
EEG (Electroencephalogram): Uses, Procedure, Risks - Verywell …
2023年6月29日 · 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 - 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.
Electroencephalogram - StatPearls - NCBI Bookshelf
2022年10月3日 · 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 seizure evaluation. It is primarily used to assess seizures and conditions that may mimic seizures.
Introduction - Electroencephalography (EEG): An Introductory Text …
The EEG is an electrophysiological technique for the recording of electrical activity arising from the human brain. Given its exquisite temporal sensitivity, the main utility of EEG is in the evaluation of dynamic cerebral functioning.
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 …