Results 31 to 40 of about 136,889 (206)

Cortical correlation structure of aperiodic neuronal population activity

NeuroImage, 2021
Electrophysiological population signals contain oscillatory and non-oscillatory aperiodic (1/frequency-like) components. So far research has largely focused on oscillatory activity, and only recently, interest in aperiodic population activity has gained ...
Andrea Ibarra Chaoul, Markus Siegel
doaj   +1 more source

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

During visual word recognition, phonology is accessed within 100 ms and may be mediated by a speech production code: evidence from magnetoencephalography [PDF]

, 2010
Debate surrounds the precise cortical location and timing of access to phonological information during visual word recognition. Therefore, using whole-head magnetoencephalography (MEG), we investigated the spatiotemporal pattern of brain responses ...
Hansen, Peter, Cornelissen, Piers, Frost, Stephen, Wheat, KL, Wheat, Katherine, Frost, SJ, Hansen, Peter; id_orcid, Cornelissen, PL   +7 more
core   +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

Post-Processing for Spectral Coherence of Magnetoencephalogram Background Activity: Application to Alzheimer’s Disease [PDF]

, 2014
Estimating the connectivity between magnetoencephalogram (MEG) signals provides an excellent opportunity to analyze whole brain functional integration across a spectrum of conditions from health to disease.
Javier Escudero, Anastasiou, Athanasios, Athanasios Anastasiou, Alberto Fernandez, Escudero, Javier; id_orcid, Fernandez, Alberto   +5 more
core   +1 more source

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
doaj   +1 more source

Interactions between visual and semantic processing during object recognition revealed by modulatory effects of age of acquisition [PDF]

, 2013
The age of acquisition (AoA) of objects and their names is a powerful determinant of processing speed in adulthood, with early-acquired objects being recognized and named faster than late-acquired objects. Previous research using fMRI (Ellis et al., 2006.
Cornelissen, Piers, Wheat, Katherine, Woods, Will, Wheat, K.L., Simpson, M.I., Barca, Laura, Simpson, Michael, Cornelissen, P.L., Woods, W., Ellis, A.W., Urooj, U., Urooj, Uzma, Ellis, Andrew W., Barca, L.   +13 more
core   +1 more source

Complex motor imagery in elite female ice hockey players: a cortical arena of imagination revealed by magnetoencephalography

Frontiers in Human Neuroscience
Motor imagery (MI), or “visualization,” as practiced by elite athletes to improve performance, provides a model of how covert thought—imagination—can affect subsequent behavior. In this exploratory magnetoencephalography (MEG) study, we aimed to identify
Audrey Alice Potts, Luis Garcia Dominguez, David Gold, Mary Pat McAndrews, Mary Pat McAndrews, Richard Wennberg, Richard Wennberg   +6 more
doaj   +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
doaj   +1 more source

Uncovering the geometry of color space with magnetoencephalography (MEG) [PDF]

, 2020
The geometry that describes the relationship among colors is unsettled despite centuries of study. Here we present a new approach, using multivariate analyses of direct measurements of brain activity obtained with magnetoencephalography to reverse-engineer the geometry of the neural representation of color space.
Isabelle Rosenthal, Shridhar Singh, Katherine Hermann, Dimitrios Pantazis, Bevil R. Conway   +4 more
openaire   +1 more source