Results 31 to 40 of about 2,513,775 (186)

Movement Related Beta-Band Modulation with OPM-MEG: A Pilot Study. [PDF]

Brain Topogr
Optically pumped magnetometers (OPMs) represent a significant advancement in magnetoencephalography (MEG), offering high sensitivity without cryogenic cooling and enabling flexible sensor placement. In this pilot study, we evaluated whether a small, zero-
Stærmose TS, Blicher JU, Dalal SS.
europepmc   +2 more sources

Interference suppression techniques for OPM-based MEG: Opportunities and challenges

NeuroImage, 2022
One of the primary technical challenges facing magnetoencephalography (MEG) is that the magnitude of neuromagnetic fields is several orders of magnitude lower than interfering signals.
Nicholas Alexander, Stephanie Mellor, George C O'neill   +2 more
exaly   +3 more sources

Mapping neural signatures of face processing in young children: an OPM-MEG study. [PDF]

Soc Cogn Affect Neurosci
Facial expressions are fundamental to social communication, with emotional face processing developing throughout childhood. However, the neural mechanisms underlying this process in young children remain underexplored due to challenges in neuroimaging ...
Safar K, Vandewouw MM, Rhodes N, Sato J, Taylor MJ.   +4 more
europepmc   +2 more sources

A Sensor Localization and Orientation Method for OPM-MEG Based on Rigid Coil Structures and Magnetic Dipole Fitting Models. [PDF]

Bioengineering (Basel)
High-precision sensor co-registration is a critical prerequisite for achieving high-resolution imaging in Optically Pumped Magnetometer–Magnetoencephalography (OPM-MEG) systems.
Xu W, Wang W, Cao F, An N, Li W, Xiang M, Ning X, Liu Y, Wang B.   +8 more
europepmc   +2 more sources

On the Potential of a New Generation of Magnetometers for MEG: A Beamformer Simulation Study. [PDF]

PLoS ONE, 2016
Magnetoencephalography (MEG) is a sophisticated tool which yields rich information on the spatial, spectral and temporal signatures of human brain function.
Elena Boto, Richard Bowtell, Peter Krüger, T Mark Fromhold, Peter G Morris, Sofie S Meyer, Gareth R Barnes, Matthew J Brookes   +7 more
doaj   +6 more sources

Repairbads: An automatic and adaptive method to repair bad channels and segments for OPM-MEG

NeuroImage
The optically pumped magnetometer (OPM) based magnetoencephalography (MEG) system offers advantages such as flexible layout and wearability. However, the position instability or jitter of OPM sensors can result in bad channels and segments, which ...
Fulong Wang, Yujie Ma, Tianyu Gao, Yue Tao, Ruonan Wang, Ruochen Zhao, Fuzhi Cao, Yang Gao, Xiaolin Ning   +8 more
doaj   +2 more sources

The impact of channel density, inverse solutions, connectivity metrics and calibration errors on OPM-MEG connectivity analysis: A simulation study

NeuroImage
Magnetoencephalography (MEG) systems based on optically pumped magnetometers (OPMs) have rapidly developed in the fields of brain function, health, and disease.
Shengjie Qi, Xinda Song, Le Jia, Hongyu Cui, Yuchen Suo, Tengyue Long, Zhendong Wu, Xiaolin Ning   +7 more
doaj   +2 more sources

Decoding the Spatiotemporal Dynamics of Neural Response Similarity in Auditory Processing: A Multivariate Analysis Based on OPM-MEG. [PDF]

Hum Brain Mapp
The brain represents information through the encoding of neural populations, where the activity patterns of these neural groups constitute the content of this information.
Liu C, Ma Y, Liang X, Xiang M, Wu H, Ning X.   +5 more
europepmc   +2 more sources

Expanding the clinical application of OPM-MEG using an effective automatic suppression method for the dental brace metal artifact

NeuroImage
Optically pumped magnetometer magnetoencephalography (OPM-MEG) holds significant promise for clinical functional brain imaging due to its superior spatiotemporal resolution.
Ruonan Wang, Kaiwen Fu, Ruochen Zhao, Dawei Wang, Zhimin Yang, Wei Bin, Yang Gao, Xiaolin Ning   +7 more
doaj   +2 more sources

Simulation Study of Different OPM-MEG Measurement Components. [PDF]

Sensors (Basel), 2022
Magnetoencephalography (MEG) is a neuroimaging technique that measures the magnetic fields of the brain outside of the head. In the past, the most suitable magnetometer for MEG was the superconducting quantum interference device (SQUID), but in recent years, a new type has also been used, the optically pumped magnetometer (OPM).
Marhl U, Sander T, Jazbinšek V.
europepmc   +4 more sources