Results 41 to 50 of about 43,113 (199)

Contactless inductive flow tomography [PDF]

open access: yes, 2004
The three-dimensional velocity field of a propeller driven liquid metal flow is reconstructed by a contactless inductive flow tomography (CIFT). The underlying theory is presented within the framework of an integral equation system that governs the ...
Frank Stefani   +3 more
core   +1 more source

Predicting Epileptogenic Tubers in Patients With Tuberous Sclerosis Complex Using a Fusion Model Integrating Lesion Network Mapping and Machine Learning

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Accurate localization of epileptogenic tubers (ETs) in patients with tuberous sclerosis complex (TSC) is essential but challenging, as these tubers lack distinct pathological or genetic markers to differentiate them from other cortical tubers.
Tinghong Liu   +11 more
wiley   +1 more source

Neural Processing Mechanism of Mental Calculation Based on Cerebral Oscillatory Changes: A Comparison Between Abacus Experts and Novices

open access: yesFrontiers in Human Neuroscience, 2020
Background: Abacus experts could mentally calculate fast some mathematical operations using multi-digit numbers. The temporal dynamics of abacus mental calculation are still unknown although some behavioral and neuroimaging studies have suggested a ...
Abdelkader Nasreddine Belkacem   +9 more
doaj   +1 more source

Desynchronization of pathological low-frequency brain activity by the hypnotic drug zolpidem. [PDF]

open access: yes, 2008
Reports of the beneficial effects of the hypnotic imidazopyridine, zolpidem, described in persistent vegetative state^1, 2^ have been replicated recently in brain-injured and cognitively impaired patients^3-7^.
Alison E. Fisher   +5 more
core   +1 more source

The Contribution of Thalamocortical Core and Matrix Pathways to Sleep Spindles. [PDF]

open access: yes, 2016
Sleep spindles arise from the interaction of thalamic and cortical neurons. Neurons in the thalamic reticular nucleus (TRN) inhibit thalamocortical neurons, which in turn excite the TRN and cortical neurons.
Cash, Sydney S   +2 more
core   +4 more sources

Structural Eigenmodes of the Brain to Improve the Source Localization of EEG: Application to Epileptiform Activity

open access: yesAdvanced Science, EarlyView.
Geometry and connectivity are complementary structures, which have demonstrated their ability to represent the brain's functional activity. This study evaluates geometric and connectome eigenmodes as biologically informed constraints for EEG source localization.
Pok Him Siu   +6 more
wiley   +1 more source

Resting-State Neurophysiological Abnormalities in Posttraumatic Stress Disorder: A Magnetoencephalography Study

open access: yesFrontiers 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   +11 more
doaj   +1 more source

The roles of online and offline replay in planning

open access: yeseLife, 2020
Animals and humans replay neural patterns encoding trajectories through their environment, both whilst they solve decision-making tasks and during rest.
Eran Eldar   +3 more
doaj   +1 more source

Practical Fundamentals of Clinical MEG Interpretation in Epilepsy

open access: yesFrontiers 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   +7 more
doaj   +1 more source

Automatic Spatial Calibration of Ultra-Low-Field MRI for High-Accuracy Hybrid MEG--MRI

open access: yes, 2019
With a hybrid MEG--MRI device that uses the same sensors for both modalities, the co-registration of MRI and MEG data can be replaced by an automatic calibration step. Based on the highly accurate signal model of ultra-low-field (ULF) MRI, we introduce a
Ilmoniemi, Risto J.   +2 more
core   +1 more source

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