ArticleNeuroImage2021
Theoretical advantages of a triaxial optically pumped magnetometer magnetoencephalography system.
Article in NeuroImage, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 64 papers.
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Who cites it
64 citing papers in PubMed.
- Spatial-Jitter Model for Magnetoencephalography Sensor Arrays.IEEE transactions on medical imaging · 2026Article
- Live magnetomyography and robotic-hand proxy control using a wearable triaxial optically pumped magnetometer.Scientific reports · 2026Article
- Effects of Inverse Solutions and Calibration Errors on Localization Performance of OPM-MEG.Annals of biomedical engineering · 2026Article
- Efficacy of Optically Pumped Magnetometers in Detecting Activity From the Cerebellar Cortex.Human brain mapping · 2026Article
- Enhanced Neural Decoding With Optically Pumped Magnetometer MEG Using Multivariate Pattern Analysis.IEEE transactions on neural systems and rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society · 2026Article
- The Mismatch Negativity Compared: EEG, SQUID-MEG, and NovelHuman brain mapping · 2025Article
- Potential ofEpilepsia open · 2025Article
- Optimization and Analysis of Tangential Component Orientations in OPM-MEG Sensor Array.Bioengineering (Basel, Switzerland) · 2025Article
- OPM-MEG reveals dynamics of beta bursts underlying attentional processes in sensory cortex.Scientific reports · 2025Article
- SPM-30 years and beyond.Cerebral cortex (New York, N.Y. : 1991) · 2025Review
- Superconducting Quantum Magnetometers for Brain Investigations.Sensors (Basel, Switzerland) · 2025Review
- The effect of sensor-to-source distance on magnetic neuromuscular signals.Scientific reports · 2025Article
- Biplanar Nulling Coil System for OPM-MEG Using Printed Circuit Boards.Sensors (Basel, Switzerland) · 2025Article
- Pulsed vector atomic magnetometer using an alternating fast-rotating field.Nature communications · 2025Article
- Wearable Magnetoencephalography in a Lightly Shielded Environment.IEEE transactions on bio-medical engineering · 2025Article
- Inferring laminar origins of MEG signals with optically pumped magnetometers (OPMs): A simulation study.Imaging neuroscience (Cambridge, Mass.) · 2025Article
- A fully integrated whole-head helium OPM MEG: a performance assessment compared to cryogenic MEG.Frontiers in medical technology · 2025Article
- Optimal configuration of on-scalp OPMs with fixed channel counts.Imaging neuroscience (Cambridge, Mass.) · 2025Article
- Pushing the boundaries of MEG based on optically pumped magnetometers towards early human life.Imaging neuroscience (Cambridge, Mass.) · 2025Article
- Source reconstruction without an MRI using optically pumped magnetometer-based magnetoencephalography.Imaging neuroscience (Cambridge, Mass.) · 2025Article
4 more citing papers are in PubMed but not listed here.
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Authors and funding
10 authors.
Funding
Abstract
The optically pumped magnetometer (OPM) is a viable means to detect magnetic fields generated by human brain activity. Compared to conventional detectors (superconducting quantum interference devices) OPMs are small, lightweight, flexible, and operate without cryogenics. This has led to a step change in instrumentation for magnetoencephalography (MEG), enabling a "wearable" scanner platform, adaptable to fit any head size, able to acquire data whilst subjects move, and offering improved data quality. Although many studies have shown the efficacy of 'OPM-MEG', one relatively untapped advantage relates to improved array design. Specifically, OPMs enable the simultaneous measurement of magnetic field components along multiple axes (distinct from a single radial orientation, as used in most conventional MEG systems). This enables characterisation of the magnetic field vector at all sensors, affording extra information which has the potential to improve source reconstruction. Here, we conduct a theoretical analysis of the critical parameters that should be optimised for effective source reconstruction. We show that these parameters can be optimised by judicious array design incorporating triaxial MEG measurements. Using simulations, we demonstrate how a triaxial array offers a dramatic improvement on our ability to differentiate real brain activity from sources of magnetic interference (external to the brain). Further, a triaxial system is shown to offer a marked improvement in the elimination of artefact caused by head movement. Theoretical results are supplemented by an experimental recording demonstrating improved interference reduction. These findings offer new insights into how future OPM-MEG arrays can be designed with improved performance.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.