Results 21 to 30 of about 2,513,775 (186)

Towards OPM-MEG in a virtual reality environment. [PDF]

Neuroimage, 2019
Virtual reality (VR) provides an immersive environment in which a participant can experience a feeling of presence in a virtual world. Such environments generate strong emotional and physical responses and have been used for wide-ranging applications ...
Roberts G, Holmes N, Alexander N, Boto E, Leggett J, Hill RM, Shah V, Rea M, Vaughan R, Maguire EA, Kessler K, Beebe S, Fromhold M, Barnes GR, Bowtell R, Brookes MJ.   +15 more
europepmc   +7 more sources

Biplanar Nulling Coil System for OPM-MEG Using Printed Circuit Boards. [PDF]

Sensors (Basel)
Optically pumped magnetometers (OPMs) are a promising magnetoencephalography (MEG) technology for the non-invasive measurement of human electrophysiological signals. Prior work developed biplanar background field-nulling coils necessary for OPM operation,
Jas M, Kamataris J, Matsubara T, Dong C, Motta G, Sohrabpour A, Ahlfors SP, Hämäläinen M, Okada Y, Sundaram P.   +9 more
europepmc   +8 more sources

Transforming and comparing data between standard SQUID and OPM-MEG systems [PDF]

PLoS ONE, 2022
Optically pumped magnetometers (OPMs) have recently become so sensitive that they are suitable for use in magnetoencephalography (MEG). These sensors solve operational problems of the current standard MEG, where superconducting quantum interference ...
Urban Marhl, Anna Jodko-Władzińska, Rüdiger Brühl, Tilmann Sander, Vojko Jazbinšek   +4 more
doaj   +7 more sources

Extended homogeneous field correction method based on oblique projection in OPM-MEG

NeuroImage
Optically pumped magnetometer-based magnetoencephalography (OPM-MEG) is an novel non-invasive functional imaging technique that features more flexible sensor configurations and wearability; however, this also increases the requirement for environmental ...
Fulong Wang, Fuzhi Cao, Yujie Ma, Ruochen Zhao, Ruonan Wang, Nan An, Min Xiang, Dawei Wang, Xiaolin Ning   +8 more
doaj   +4 more sources

Wearable OPM‐MEG: A changing landscape for epilepsy [PDF]

Epilepsia, 2022
AbstractMagnetoencephalography with optically pumped magnometers (OPM‐MEG) is an emerging and novel, cost‐effective wearable system that can simultaneously record neuronal activity with high temporal resolution ("when" neuronal activity occurs) and spatial resolution ("where" neuronal activity occurs).
Mangor Pedersen, David F Abbott
exaly   +5 more sources

Measuring Phase–Amplitude Coupling Effect with OPM-MEG

Photonics
Optically pumped magnetometers (OPMs) present a promising opportunity to advance magnetoencephalography (MEG), enhancing the accuracy of neuronal activity recordings due to their high spatiotemporal resolution.
Yong Li, Hao Lu, Chunhui Wang, Fuzhi Cao, Jianzhi Yang, Binyi Su, Ying Liu, Xiaolin Ning   +7 more
doaj   +3 more sources

Source-level performance of triaxial and uniaxial-radial OPM-MEG

NeuroImage
Magnetoencephalography (MEG) based on optically pumped magnetometers (OPM) provides a new means for detecting human brain activities. Compared to conventional SQUID-MEG, OPM-MEG offers significant advantages, including the wearability, flexibility in ...
Wen Li, Nan An, Zhenfeng Gao, Junjian Tang, Jianzhi Yang, Xin Ma, Min Xiang, Fuzhi Cao   +7 more
doaj   +3 more sources

Optimization and Analysis of Tangential Component Orientations in OPM-MEG Sensor Array. [PDF]

Bioengineering (Basel)
Optically pumped magnetometers (OPMs) have brought a transformative advancement to magnetoencephalography (MEG), enabling flexible, noncryogenic, and wearable neuroimaging systems.
Wang W, Cao F, An N, Li W, Wang C, Gao Z, Xiang M, Ning X.   +7 more
europepmc   +4 more sources

OPM-MEG reveals dynamics of beta bursts underlying attentional processes in sensory cortex. [PDF]

Sci Rep
Human brain electrophysiology is dominated by rhythmic activity—neural oscillations—which play an important role in coordinating brain function. In the somatosensory cortices, the dominant oscillations occur in the beta (13–30 Hz) band and are thought to
Rivero GR, Tanner Z, Rier L, Hill RM, Shah V, Rea M, Doyle C, Osborne J, Bobela D, Morris PG, Mullinger KJ, Boto E, Holmes N, Brookes MJ.   +13 more
europepmc   +2 more sources

Triaxial detection of the neuromagnetic field using optically-pumped magnetometry: feasibility and application in children [PDF]

NeuroImage, 2022
Optically-pumped magnetometers (OPMs) are an established alternative to superconducting sensors for magnetoencephalography (MEG), offering significant advantages including flexibility to accommodate any head size, uniform coverage, free movement during ...
Elena Boto, Vishal Shah, Ryan M. Hill, Natalie Rhodes, James Osborne, Cody Doyle, Niall Holmes, Molly Rea, James Leggett, Richard Bowtell, Matthew J. Brookes   +10 more
doaj   +3 more sources