Results 11 to 20 of about 14,406 (202)

Muscle Fatigue Revisited – Insights From Optically Pumped Magnetometers

Frontiers in Physiology, 2021
So far, surface electromyography (sEMG) has been the method of choice to detect and evaluate muscle fatigue. However, recent advancements in non-cryogenic quantum sensors, such as optically pumped magnetometers (OPMs), enable interesting possibilities to
Davide Sometti, Davide Sometti, Davide Sometti, Davide Sometti, Lorenzo Semeia, Lorenzo Semeia, Sangyeob Baek, Sangyeob Baek, Hui Chen, Hui Chen, Giulia Righetti, Giulia Righetti, Giulia Righetti, Giulia Righetti, Juergen Dax, Juergen Dax, Cornelius Kronlage, Milena Kirchgässner, Alyssa Romano, Johanna Heilos, Deborah Staber, Julia Oppold, Thomas Middelmann, Christoph Braun, Christoph Braun, Christoph Braun, Christoph Braun, Philip Broser, Justus Marquetand, Justus Marquetand, Justus Marquetand   +30 more
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Pediatric magnetoencephalography

Annals of the Child Neurology Society, 2023
Magnetoencephalography (MEG) is a technology used in pediatric and adult epilepsy that records magnetic fields produced from electric currents in the brain. MEG can locate epileptogenic zone(s), lateralize language functions, localize sensorimotor cortex,
Douglas R. Nordli III, Fernando N. Galan
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Magnetoencephalography (MEG) predicts focal epileptogenicity in cavernomas [PDF]

Journal of Neurology, Neurosurgery & Psychiatry, 2004
The aim of this study was to identify the irritative epileptic zone in patients with cavernomas by means of magnetoencephalography (MEG).Among 82 patients operated for epilepsy, whose presurgical evaluation had included MEG, histological assessment of the tissue removed had confirmed cavernomas in eight. These eight patients had epilepsy since 18.6 (SD
H, Stefan, G, Scheler, C, Hummel, J, Walter, J, Romstöck, M, Buchfelder, I, Blümcke   +6 more
openaire   +2 more sources

Motor-related oscillatory activity in schizophrenia according to phase of illness and clinical symptom severity

NeuroImage: Clinical, 2021
Magnetoencephalography (MEG) measures magnetic fields generated by synchronised neural current flow and provides direct inference on brain electrophysiology and connectivity, with high spatial and temporal resolution.
Lauren E. Gascoyne, Matthew J. Brookes, Mohanbabu Rathnaiah, Mohammad Zia Ul Haq Katshu, Loes Koelewijn, Gemma Williams, Jyothika Kumar, James T.R. Walters, Zelekha A. Seedat, Lena Palaniyappan, J.F. William Deakin, Krish D. Singh, Peter F. Liddle, Peter G. Morris   +13 more
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Resting-State Neurophysiological Abnormalities in Posttraumatic Stress Disorder: A Magnetoencephalography Study

Frontiers in Human Neuroscience, 2017
Posttraumatic stress disorder (PTSD) is a debilitating psychiatric condition that is common in veterans returning from combat operations. While the symptoms of PTSD have been extensively characterized, the neural mechanisms that underlie PTSD are only ...
Amy S. Badura-Brack, Elizabeth Heinrichs-Graham, Elizabeth Heinrichs-Graham, Timothy J. McDermott, Timothy J. McDermott, Katherine M. Becker, Katherine M. Becker, Tara J. Ryan, Tara J. Ryan, Maya M. Khanna, Tony W. Wilson, Tony W. Wilson   +11 more
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Magnetoencephalography-identified preictal spiking correlates to preictal spiking on stereotactic EEG

Epilepsy & Behavior Reports, 2022
Magnetoencephalography (MEG) is a noninvasive diagnostic modality that directly measures neuronal signaling by recording the magnetic field created from dendritic, intracellular, electrical currents of the neuron at the surface of the head.
Andrew Zillgitt, Mohamad Ayman Haykal, Konstantin Elisevich, Sanjay Patra, Frederick Sherburn, Susan M. Bowyer, David E. Burdette   +6 more
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Helsinki VideoMEG Project: Augmenting magnetoencephalography with synchronized video recordings

MethodsX, 2018
The primary goal of the Helsinki VideoMEG Project is to enable magnetoencephalography (MEG) practitioners to record and analyze the video of the subject during an MEG experiment jointly with the MEG data.
Andrey Zhdanov, Jussi Nurminen, Eric Larson   +2 more
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MEG Evidence of Concurrent Bilateral and Hemisphere-Specific Developmental Patterns in Auditory Cortex. [PDF]

Dev Sci
ABSTRACT Children demonstrate remarkably different temporal characteristics, as well as higher interindividual variability, in the cortical auditory responses as compared with adults. The detailed dynamics at the level of underlying current generators are, however, not established.
Parviainen T, Heikkinen P, Hänninen A, Nobre AC.   +3 more
europepmc   +2 more sources

Cross-Axis projection error in optically pumped magnetometers and its implication for magnetoencephalography systems

NeuroImage, 2022
Optically pumped magnetometers (OPMs) developed for magnetoencephalography (MEG) typically operate in the spin-exchange-relaxation-free (SERF) regime and measure a magnetic field component perpendicular to the propagation axis of the optical-pumping ...
Amir Borna, Joonas Iivanainen, Tony R. Carter, Jim McKay, Samu Taulu, Julia Stephen, Peter D.D. Schwindt   +6 more
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Magnetoencephalography: Basic principles

Annals of Indian Academy of Neurology, 2014
Magnetoencephalography (MEG) is the measurement of the magnetic field generated by the electrical activity of neurons. It is usually combined with a magnetic resonance imaging to get what is called magnetic source imaging.
Sanjay P Singh
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