magnetoencephalography

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magnetoencephalography

 (MEG) [mag-ne″to-en-sef″ah-log´ra-fe]
a noninvasive diagnostic technique that directly measures the magnetic fields produced by electrical currents in the brain. A vaultlike device is necessary to ensure that the accuracy of the test is not affected by interference from magnetic fields produced by electrical wires and radio and television transmissions.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

mag·ne·to·en·ceph·a·log·ra·phy

(mag-nē'tō-en-sef'ă-log'ră-fē),
The process of recording the brain's magnetic field.
Farlex Partner Medical Dictionary © Farlex 2012

magnetoencephalography

(măg-nē′tō-ĕn-sĕf′ə-lŏg′rə-fē)
n. Abbr. MEG
A diagnostic imaging technique that detects and records magnetic fields produced by electrical activity in the brain.
mag·ne′to·en·ceph′a·lo·graph′ic (-ə-lə-grăf′ĭk, -ə-lō-) adj.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

magnetoencephalography

The recording of the brain’s magnetic field using the obsolete magnetoencephalograph; it is identical topographically to the ionic field recorded by the electroencephalograph.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

magnetoencephalography

Biomagnetism Neuroimaging An imaging technique used to evaluate subtle fluctuations in the electrical magnetic field produced by the body; MEG measures the brain's electrical activity by evaluating the magnetic field associated with neuronal activity. Cf Electroencephalography, PET scanning.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.
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References in periodicals archive ?
Tiitinen, "Magnetoencephalographic (MEG) localization of the auditory N400m: effects of stimulus duration," NeuroReport, vol.
Physical feature encoding and word recognition abilities are altered in children with intractable epilepsy: preliminary neuromagnetic evidence
We studied both rest and stimulus-evoked magnetoencephalographic (MEG) activities in the sensorimotor cortex of a group of AD patients and a matched group of controls.
Sensorimotor cortex reorganization in Alzheimer's disease and metal dysfunction: a MEG study
On the characterization of the spatio-temporal profiles of brain activity associated with face naming and the tip-of-the-tongue state: A magnetoencephalographic (MEG) study.
Secuencia de actividad cerebral relacionada con la denominacion de caras y el fenomeno de la punta de la lengua
Using the MagnetoEncephaloGraphic (MEG) scanner at the York Neuroimaging Centre to test responses in the region, the researchers found that the posterior superior temporal sulcus responds so strongly to a face plus a voice that it clearly has a 'multimodal' rather than an exclusively visual function.
Facial, vocal expressions of emotion trigger big brain responses
Kuroda, "Medial Prefrontal Cortex and Anterior Cingulate Cortex in the Generation of Alpha Activity Induced by Transcendental Meditation: A Magnetoencephalographic Study," Acta Medica Okayama 60, no.
Brain functioning as the ground for spiritual experiences and ethical behavior
Magnetoencephalographic studies of functional organization and plasticity of the human auditory cortex.
Perceptual training improves syllable identification in new and experienced hearing aid users
Magnetoencephalographic studies have also shown a dampening of the alpha activity within 200 ms after the appearance of a visual stimulus and also during visual imagery (Hari, Salmelin, Makela, Salenius & Helle, 1997).
Visual imagery without visual perception?
It is very expensive, as are the customized cradles designed to accommodate a newborn's head and used to collect magnetoencephalographic data.
Magnetomyography: a noninvasive measure of uterine contractions and fetal well-being
Magnetoencephalographic scans were performed 5 seconds after each move to measure focal gamma bursts in the 20- to 40-Hz range.
Scans Find Chess Masters Organize Data Differently. ('Chunking Theory' of Memory)
Instead, attempts to model the generating source of the frontal theta rhythm from both EEG (Gevins et al., 1997) and magnetoencephalographic (Ishii et al., 1999) data have implicated the anterior cingulate cortex as a likely region of origin.
Monitoring task loading with multivariate EEG measures during complex forms of human-computer interaction
Salmelin, Helenius, and Service (2000) have published a review of a series of magnetoencephalographic (MEG) experiments aimed at identifying cortical areas and time windows relevant to or even critical for fluent reading.
FUNCTIONAL MAGNETIC RESONANCE IMAGING AND SPECTROSCOPIC IMAGING OF THE BRAIN: APPLICATION OF fMRI AND fMRS TO READING DISABILITIES AND EDUCATION

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