Results 31 to 40 of about 19,445 (231)

Optically pumped magnetoencephalography in epilepsy

Annals of Clinical and Translational Neurology, 2020
We demonstrate the first use of Optically Pumped Magnetoencephalography (OP‐MEG) in an epilepsy patient with unrestricted head movement. Current clinical MEG uses a traditional SQUID system, where sensors are cryogenically cooled and housed in a helmet ...
Umesh Vivekananda, Stephanie Mellor, Tim M. Tierney, Niall Holmes, Elena Boto, James Leggett, Gillian Roberts, Ryan M. Hill, Vladimir Litvak, Matthew J. Brookes, Richard Bowtell, Gareth R. Barnes, Matthew C. Walker   +12 more
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Practical Fundamentals of Clinical MEG Interpretation in Epilepsy

Frontiers in Neurology, 2021
Magnetoencephalography (MEG) is a neurophysiologic test that offers a functional localization of epileptic sources in patients considered for epilepsy surgery.
Christopher Laohathai, Christopher Laohathai, John S. Ebersole, John C. Mosher, Anto I. Bagić, Ai Sumida, Gretchen Von Allmen, Michael E. Funke   +7 more
doaj   +1 more source

MEG Source Localization via Deep Learning

Sensors, 2021
We present a deep learning solution to the problem of localization of magnetoencephalography (MEG) brain signals. The proposed deep model architectures are tuned to single and multiple time point MEG data, and can estimate varying numbers of dipole ...
Dimitrios Pantazis, Amir Adler
doaj   +1 more source

Studying Brain Function in Children Using Magnetoencephalography [PDF]

, 2019
Magnetoencephalography (MEG) is a non-invasive neuroimaging technique which directly measures magnetic fields produced by the electrical activity of the human brain.
Rapaport, Hannah, Benikos, Nick, Johnson, Blake W., Stylianou, Elisabeth, Seymour, Robert A., He, Wei, Sowman, Paul F., Crain, Stephen   +7 more
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A tool for functional brain imaging with lifespan compliance

Nature Communications, 2019
Magnetoencephalography (MEG) recordings are sensitive to movement and therefore are especially challenging with young participants. Here the authors develop a wearable MEG system based on a modified bicycle helmet, which enables reliable recordings in ...
Ryan M. Hill, Elena Boto, Niall Holmes, Caroline Hartley, Zelekha A. Seedat, James Leggett, Gillian Roberts, Vishal Shah, Tim M. Tierney, Mark W. Woolrich, Charlotte J. Stagg, Gareth R. Barnes, Richard Bowtell, Rebeccah Slater, Matthew J. Brookes   +14 more
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On Linearly Constrained Minimum Variance Beamforming [PDF]

, 2015
Beamforming is a widely used technique for source localization in signal processing and neuroimaging. A number of vector-beamformers have been introduced to localize neuronal activity by using magnetoencephalography (MEG) data in the literature ...
Liu, Chao, Zhang, Jian
core   +1 more source

Magnetoencephalography in the Detection and Characterization of Brain Abnormalities Associated with Traumatic Brain Injury: A Comprehensive Review

Medical Sciences, 2021
Magnetoencephalography (MEG) is a functional brain imaging technique with high temporal resolution compared with techniques that rely on metabolic coupling. MEG has an important role in traumatic brain injury (TBI) research, especially in mild TBI, which
Geoffrey W. Peitz, Elisabeth A. Wilde, Ramesh Grandhi   +2 more
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Activation of the left inferior frontal gyrus in the first 200 ms of reading: evidence from magnetoencephalography (MEG)

, 2009
BACKGROUND: It is well established that the left inferior frontal gyrus plays a key role in the cerebral cortical network that supports reading and visual word recognition. Less clear is when in time this contribution begins.
Aleman, André, Cornelissen, Piers, Holliday, IE, Whitney, Carol, Holliday Ian E., Cornelissen, PL, Hansen, PC, Aleman, A, Kringelbach, Morten L., Holliday, Ian E., Ellis Andrew W., Holliday, Ian, Piers L. Cornelissen (296871), Andrew W. Ellis (373237), Hansen, Peter; id_orcid, Hansen, Peter, Ian E Holliday, Peter C Hansen, Hansen Peter C., Piers L Cornelissen, Whitney, C, Whitney Carol, Peter C. Hansen (269829), Kringelbach Morten L., Kringelbach, ML, Andrew W Ellis, Morten L. Kringelbach (320548), Carol Whitney, Ian E. Holliday (320929), Cornelissen Piers L., Morten L Kringelbach, Hansen, Peter C., Carol Whitney (373238), Cornelissen, Piers L., Ellis, Andrew W., Ellis, AW, Kringelbach, Morten   +36 more
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Blind source separation to enhance spectral and non-linear features of magnetoencephalogram recordings:Application to Alzheimer's disease [PDF]

, 2009
This work studied whether a blind source separation (BSS) and component selection procedure could increase the differences between Alzheimer's disease (AD) patients and control subjects' spectral and nonlinear features of magnetoencephalogram (MEG ...
Abasolo, Daniel, Hornero, Roberto, Escudero, Javier; id_orcid, Fernandez, Alberto   +3 more
core   +1 more source

Performance Analysis of Optically Pumped ⁴He Magnetometers vs. Conventional SQUIDs: From Adult to Infant Head Models

Sensors, 2022
Optically pumped magnetometers (OPMs) are new, room-temperature alternatives to superconducting quantum interference devices (SQUIDs) for measuring the brain’s magnetic fields.
Saeed Zahran, Mahdi Mahmoudzadeh, Fabrice Wallois, Nacim Betrouni, Philippe Derambure, Matthieu Le Prado, Agustin Palacios-Laloy, Etienne Labyt   +7 more
doaj   +1 more source