Results 31 to 40 of about 43,113 (199)

Altered Neuromagnetic Activity in Persistent Postural-Perceptual Dizziness: A Multifrequency Magnetoencephalography Study

open access: yesFrontiers in Human Neuroscience, 2022
ObjectiveThe aim of our study was to investigate abnormal changes in brain activity in patients with persistent postural-perceptual dizziness (PPPD) using magnetoencephalography (MEG).MethodsMagnetoencephalography recordings from 18 PPPD patients and 18 ...
Weiwei Jiang   +7 more
doaj   +1 more source

Children with cerebral palsy have altered oscillatory activity in the motor and visual cortices during a knee motor task

open access: yesNeuroImage: Clinical, 2017
The neuroimaging literature on cerebral palsy (CP) has predominantly focused on identifying structural aberrations within the white matter (e.g., fiber track integrity), with very few studies examining neural activity within the key networks that serve ...
Max J. Kurz   +4 more
doaj   +1 more source

A two-way regularization method for MEG source reconstruction [PDF]

open access: yes, 2012
The MEG inverse problem refers to the reconstruction of the neural activity of the brain from magnetoencephalography (MEG) measurements. We propose a two-way regularization (TWR) method to solve the MEG inverse problem under the assumptions that only a ...
Huang, Jianhua Z.   +3 more
core   +4 more sources

Independent component approach to the analysis of EEG and MEG recordings [PDF]

open access: yes, 2000
Multichannel recordings of the electromagnetic fields emerging from neural currents in the brain generate large amounts of data. Suitable feature extraction methods are, therefore, useful to facilitate the representation and interpretation of the data ...
Hämäläinen, Dr Matti   +4 more
core   +1 more source

Aberrant oscillatory dynamics during somatosensory processing in HIV-infected adults

open access: yesNeuroImage: Clinical, 2018
While the arrival of combination antiretroviral therapy significantly decreased the prevalence of HIV-associated dementia, between 35 and 70% of all infected adults continue to develop some form of cognitive impairment.
Rachel K. Spooner   +7 more
doaj   +1 more source

Rich Club Characteristics of Alcohol-Naïve Functional Brain Networks Predict Future Drinking Phenotypes in Rhesus Macaques

open access: yesFrontiers in Behavioral Neuroscience, 2021
Purpose: A fundamental question for Alcohol use disorder (AUD) is how and when naïve brain networks are reorganized in response to alcohol consumption. The current study aimed to determine the progression of alcohol’s effect on functional brain networks ...
Jared A. Rowland   +11 more
doaj   +1 more source

Magnetoencephalography in Stroke Recovery and Rehabilitation [PDF]

open access: yes, 2016
Magnetoencephalography (MEG) is a non-invasive neurophysiological technique used to study the cerebral cortex. Currently, MEG is mainly used clinically to localize epileptic foci and eloquent brain areas in order to avoid damage during neurosurgery.
Birbaumer, Niels   +7 more
core   +2 more sources

Inverse Modeling for MEG/EEG data

open access: yes, 2017
We provide an overview of the state-of-the-art for mathematical methods that are used to reconstruct brain activity from neurophysiological data. After a brief introduction on the mathematics of the forward problem, we discuss standard and recently ...
A Doucet   +40 more
core   +1 more source

Detection of temporal-lobe epilepsy with the physiological responses to fear and anxiety [PDF]

open access: yes, 2020
Epilepsy is a neurological disease caused by an abnormal neuronal activity on a region of the brain, which provokes seizures and the loss of consciousness to its patients. Epilepsy can be very disabling, since patients do not know when crisis or seizures
Perich Pallaruelo, Marta
core  

Functional Hyperconnectivity during a Stories Listening Task in Magnetoencephalography Is Associated with Language Gains for Children Born Extremely Preterm

open access: yesBrain Sciences, 2021
Extreme prematurity (EPT,
Maria E. Barnes-Davis   +5 more
doaj   +1 more source

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