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see electroencephalographyelectroencephalography
, science of recording and analyzing the electrical activity of the brain. Electrodes, placed on or just under the scalp, are linked to an electroencephalograph, which is an amplifier connected to a mechanism that converts electrical impulses into the
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A woman undergoes an electroencephalogram (EEG) test.

EEG (Electroencephalogram)


The human body is an electrochemical organism, although the electrical activities of the body are relatively weak in contrast to electrical appliances. Although weak, the electrical activity of the human body, particularly that of the nerves, can be measured. The brain is especially active in this regard, and electrical variations can be measured by means of electrodes taped to the head and face. The machines used for this purpose produce what is referred to as an electroencephalogram, or EEG. When recorded on a roll of paper, EEGs produce what looks like a wave pattern, hence the expression brain wave. Different stages of sleep are characterized by different brain wave patterns, and contemporary laboratory sleep research relies heavily on EEG measurements.

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References in periodicals archive ?
Wang, "Online removal of muscle artifact from electroencephalogram signals based on canonical correlation analysis," Clinical EEG and Neuroscience, vol.
Hu, "Biometric system based on EEG signals by feature combination," in Proceedings of the 2010 International Conference on Measuring Technology and Mechatronics Automation (ICMTMA 2010), pp.
Although it was not planned at that moment to request a conventional EEG recording, given the high suspicion of NCSE recurrence, the neurophysiology team was urgently contacted and the NCSE recurrence was confirmed and treated.
Winners of 12th edition of Emirates Environmental Group (EEG) Environmental Drawing Competition were felicitated at a ceremony held in Dubai on Tuesday.
This acquisition comes just nine months after CortiCare acquired the EEG assets of New York-based Safe Passage Inc., a company also providing ambulatory EEG monitoring services.
This study also provides the opportunity to chart sleep EEG changes in association with brain maturation along with anthropometric and development screening assessment using Trivandrum Development Screening Chart (TDSC).
EEG congratulates DEWA in hosting yet another successful Earth Hour.
The current method was pioneered by Nestor who successfully reconstructed facial images from functional magnetic resonance imaging (fMRI) data in the past, but this is the first time EEG has been used.
EEG epochs of 12-second duration were saved, from the artefact-free region of the recording under the supervision of two neurologists.
This case highlights an unusual presentation of sCJD characterised by a rapidly progressive impairment of consciousness and seizure activity on EEG, leading to a diagnosis of NCSE.
"EEG allows for reliable prediction of poor outcome after cardiac arrest, with maximum sensitivity in the first 24 hours," the authors write.