Results 111 to 120 of about 125,997 (158)

Investigating the effects of calibration errors on the spatial resolution of OPM-MEG beamformer imaging

NeuroImage
The use of optically pumped magnetometers (OPMs) has provided a feasible, moveable and wearable alternative to superconducting detectors for magnetoencephalography (MEG) measurements. Recently, the widely used beamformer imaging technique has greatly improved spatial accuracy of MEG in the field of source reconstruction of neuroimaging.
Shengjie Qi, Xinda Song, Le Jia, Zhaoxin Duan, Yan Dai 0016, Jing Zhang 0090, Xiaolin Ning   +6 more
openaire   +4 more sources

Gradient phase and amplitude errors in atomic magnetic gradiometers for biomagnetic imaging systems

iScience
Summary: The cross-axis projection error (CAPE) caused by residual magnetic fields has recently attracted widespread attention. In this study, we propose a more specific theoretical model and expand the CAPE in gradient measurements. We first report that
Ziqi Yuan, Shudong Lin, Ying Liu, Junjian Tang, Tengyue Long, Yueyang Zhai   +5 more
doaj   +1 more source

Exploring Directed Connectivity Patterns of OPM-MEG with Multivariate Transfer Entropy

Abstract We explored the directed connectivity of magnetoencephalography data recorded via Optically Pumped Magnetometers (OPM-MEG). Ten healthy adult participants were scanned twice while watching a movie in an OPM-MEG system. Beamformer source localisation was employed to obtain source time series within 62 cortical brain regions ...
Mangor Pedersen, Geet Vashista, Dion Henare, Paul F. Sowman   +3 more
openaire   +1 more source

An integrated full-head OPM-MEG system based on 128 zero-field sensors. [PDF]

Front Neurosci, 2023
Alem O, Hughes KJ, Buard I, Cheung TP, Maydew T, Griesshammer A, Holloway K, Park A, Lechuga V, Coolidge C, Gerginov M, Quigg E, Seames A, Kronberg E, Teale P, Knappe S.   +15 more
europepmc   +1 more source

Altered Evening Aperiodic Activity and Microstate Dynamics in Insomnia Disorder: An OPM MEG Study. [PDF]

CNS Neurosci Ther
Cui F, Hu K, Zeng H, Wang Y, Wang X, Liu H, Wang T, Chang Y, Yang X, Hu T, Shen T, Zhu J, Zheng J, Pan D.   +13 more
europepmc   +1 more source

Reliability and signal comparison of OPM-MEG, fMRI & iEEG in a repeated movie viewing paradigm. [PDF]

Imaging Neurosci (Camb)
Christiano OR, Michelmann S.
europepmc   +1 more source

Passive OPM-MEG paradigm reveals altered brain network organization in children with DLD. [PDF]

iScience
Liang A, Cui Z, Wang J, Wang H, Shi Y, Qu C, Liu J, Ni X, Ning X, Fang J.   +9 more
europepmc   +1 more source

Neuromagnetism "On the Cheap": Evaluating a Combined Cylindrical Shield and Partial-Coverage OPM-MEG System for Detecting Sensorimotor Responses in Humans. [PDF]

Sensors (Basel)
Bailey LM, Knox C, Bardouille T.
europepmc   +1 more source

Case report: precise mapping and epilepsy surgery of the Broca's area after a comprehensive OPM-MEG investigation of Broca's area localization. [PDF]

Acta Epileptol
Zhou Y, Zhang Y, Tian L, Wang T, Wang M, Zhu R, Li H, Qiao Z, Cao Z, Peng Y, Ding M, Wang Y.   +11 more
europepmc   +1 more source

Optimizing OPM-MEG Sensor Layouts Using the Sequential Selection Algorithm with Simulated Sources and Individual Anatomy. [PDF]

Sensors (Basel)
Marhl U, Hren R, Sander T, Jazbinšek V.
europepmc   +1 more source