Results 41 to 50 of about 2,297 (157)

Complementary predictive value of electromagnetic source imaging and hemodynamic responses in epilepsy surgery: A quantitative spatial analysis

open access: yesEpilepsia, EarlyView.
Abstract Objective Accurate presurgical evaluation should assess not only the location but also the spatial extent of epileptic activity relative to the surgical cavity, a practical approximation of the epileptogenic zone. We evaluated how electromagnetic source imaging (EMSI) and hemodynamic responses to epileptic discharges relate to the surgical ...
Chifaou Abdallah   +13 more
wiley   +1 more source

Exploring the Sensitivity Limits of Neuronal Current Imaging With MRI and MEG in the Human Brain

open access: yesHuman Brain Mapping, Volume 47, Issue 11, 01 August 2026.
Combined spin‐lock fMRI, MEG, BOLD‐fMRI, and phantom experiments reveal that physiological neuronal magnetic fields lie below the in vivo detection threshold of the current spin‐lock implementations at 3T, defining quantitative sensitivity limits for MR‐based neuronal current imaging. ABSTRACT Conventional BOLD‐fMRI relies on hemodynamic responses that
Milena Capiglioni   +5 more
wiley   +1 more source

Calibration for GOCE Gradiometer Data Based on the Prior Gravity Models [PDF]

open access: yesJournal of Geodesy and Geoinformation Science, 2019
The determination of the calibration parameters of the gravity gradiometer play an important role in the GOCE gravity gradient data processing. In this paper, the temporal signals and outliers in the GOCE gravity gradient observations are analyzed. Based
Qingliang QU,Xiaotao CHANG,Shengwen YU,Guangbin ZHU
doaj   +1 more source

FREQ‐NESS Reveals Age‐Related Differences in Frequency‐Resolved Brain Networks During Auditory Recognition and Resting State

open access: yesAnnals of the New York Academy of Sciences, Volume 1562, Issue 1, August 2026.
We adapted the FREQ‐NESS pipeline to event‐related MEG data from 140 adults during a melody‐recognition task, revealing an age‐related reorganization of frequency‐specific brain networks. Younger adults showed task‐related reduction in the prominence of alpha networks, whereas older adults maintained prominent slower alpha networks (8.6–10.0 Hz) across
Chiara Malvaso   +8 more
wiley   +1 more source

7000 Years of Aboriginal Mining at Sugarloaf Hill in the Riverland Region of South Australia

open access: yesArchaeology in Oceania, Volume 61, Issue 2, Page 277-311, July 2026.
ABSTRACT Silcrete and chert are commonly represented in Aboriginal archaeological lithic assemblages across large parts of the southwestern Murray‐Darling Basin (MDB). In South Australia (SA), these materials were sourced from a series of quarries located along the incised course of the Murray River through the upper Riverland region.
Craig Westell   +8 more
wiley   +1 more source

Enhanced Time‐Locked Decoding for Spoken Words but Not Environmental Sounds in Natural‐Like Auditory Conditions

open access: yesEuropean Journal of Neuroscience, Volume 64, Issue 1, July 2026.
We examined cortical tracking of speech under naturalistic auditory conditions by recording MEG responses while participants listened to superimposed spoken words and environmental sounds. Decoding sound envelopes and spectrograms from the MEG responses revealed a more accurate cortical tracking of speech compared to other natural sounds in the left ...
Jesper Edström   +4 more
wiley   +1 more source

Development of precise off-diagonal magnetoimpedance gradiometer for magnetocardiography

open access: yesAIP Advances, 2017
We have developed a precise off-diagonal magnetoimpedance (MI) gradiometer that can operate in an unshielded environment and at room temperature with 200 pT root-mean-square noise in a 100 Hz bandwidth.
Tsuyoshi Uchiyama, Takashi Takiya
doaj   +1 more source

Cutaneous Sensory Stimulation Intensity Modulates Beta‐Band Event‐Related Desynchronization and Synchronization Amplitudes

open access: yesEuropean Journal of Neuroscience, Volume 64, Issue 1, July 2026.
Beta‐band oscillations (βERD and βERS) were examined under different levels of cutaneous electrical stimulation. Both the amplitude and occurrence of βERD and βERS increased with stimulus intensity, whereas neither βERD nor βERS power was correlated with motor performance in healthy individuals.
Rin Kosuge   +10 more
wiley   +1 more source

The Compensation Method of Vehicle Magnetic Interference for the Magnetic Gradiometer

open access: yesAdvances in Mathematical Physics, 2013
The magnetic interference of vehicle imposes a strong influence on the magnetic gradiometer. Based on the mechanism of the vehicle magnetic interference, we firstly use the difference algorithm of the magnetic gradient tensor to fuse the magnetic ...
Junwei Lv   +3 more
doaj   +1 more source

Sleep Oscillations Across Cortical, Subcortical and Cerebellar Structures in Magnetoencephalography

open access: yesEuropean Journal of Neuroscience, Volume 64, Issue 1, July 2026.
This study uses source‐localised MEG to characterise oscillatory whole brain activity across NREM sleep stages, including the cerebellum. Findings reveal distinct, stage‐ and frequency‐specific patterns, with cerebellar signals reliably differentiable and engaged during sigma‐band activity in N2 sleep, highlighting the cerebellum's contribution to ...
Keelin Greenlaw   +4 more
wiley   +1 more source

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