ArticleNeuroImage2023
Measurement of Frontal Midline Theta Oscillations using OPM-MEG.
Article in NeuroImage, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers.
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Who cites it
37 citing papers in PubMed.
- Article
- Optically pumped magnetometers enhance neuroimaging performance-An EEG, OPM, and SQUID-MEG study.iScience · 2026Article
- Neural investigation of default effects on decision-making under uncertainty.Scientific reports · 2026Article
- Reduced task-induced frontal midline theta activity in chronic stroke patients compared to healthy older adults - An MEG study.NeuroImage. Clinical · 2026Article
- Strong mnemonic prediction errors increase cognitive control, attention, and arousal.bioRxiv : the preprint server for biology · 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
- The Influence of Dimensional Parameters on the Characteristics of Magnetic Flux Concentrators Used in Tunneling Magnetoresistance Devices.Sensors (Basel, Switzerland) · 2025Article
- Superconducting Quantum Magnetometers for Brain Investigations.Sensors (Basel, Switzerland) · 2025Review
- Volume conductor models for magnetospinography.Scientific reports · 2025Article
- Anatomically Veridical On-Scalp Sensor Topographies.The European journal of neuroscience · 2025Article
- Wearable Magnetoencephalography in a Lightly Shielded Environment.IEEE transactions on bio-medical engineering · 2025Article
- Mapping neural signatures of face processing in young children: an OPM-MEG study.Social cognitive and affective neuroscience · 2025Article
- Bias Calibration of Optically Pumped Magnetometers Based on Variable Sensitivity.Sensors (Basel, Switzerland) · 2025Article
- Source reconstruction without an MRI using optically pumped magnetometer-based magnetoencephalography.Imaging neuroscience (Cambridge, Mass.) · 2025Article
- Demonstrating equivalence across magnetoencephalography scanner platforms using neural fingerprinting.Imaging neuroscience (Cambridge, Mass.) · 2025Article
- Determining sensor geometry and gain in a wearable MEG system.Imaging neuroscience (Cambridge, Mass.) · 2025Article
- Measuring the neurodevelopmental trajectory of excitatory-inhibitory balance via visual gamma oscillations.Imaging neuroscience (Cambridge, Mass.) · 2025Article
- Combining video telemetry and wearable MEG for naturalistic imaging.Imaging neuroscience (Cambridge, Mass.) · 2025Article
- Decoding the Temporal Structures and Interactions of Multiple Face Dimensions Using Optically Pumped Magnetometer Magnetoencephalography (OPM-MEG).The Journal of neuroscience : the official journal of the Society for Neuroscience · 2024Article
Corrections and comments
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Authors and funding
13 authors.
Funding
Abstract
Optically pumped magnetometers (OPMs) are an emerging lightweight and compact sensor that can measure magnetic fields generated by the human brain. OPMs enable construction of wearable magnetoencephalography (MEG) systems, which offer advantages over conventional instrumentation. However, when trying to measure signals at low frequency, higher levels of inherent sensor noise, magnetic interference and movement artefact introduce a significant challenge. Accurate characterisation of low frequency brain signals is important for neuroscientific, clinical, and paediatric MEG applications and consequently, demonstrating the viability of OPMs in this area is critical. Here, we undertake measurement of theta band (4-8 Hz) neural oscillations and contrast a newly developed 174 channel triaxial wearable OPM-MEG system with conventional (cryogenic-MEG) instrumentation. Our results show that visual steady state responses at 4 Hz, 6 Hz and 8 Hz can be recorded using OPM-MEG with a signal-to-noise ratio (SNR) that is not significantly different to conventional MEG. Moreover, we measure frontal midline theta oscillations during a 2-back working memory task, again demonstrating comparable SNR for both systems. We show that individual differences in both the amplitude and spatial signature of induced frontal-midline theta responses are maintained across systems. Finally, we show that our OPM-MEG results could not have been achieved without a triaxial sensor array, or the use of postprocessing techniques. Our results demonstrate the viability of OPMs for characterising theta oscillations and add weight to the argument that OPMs can replace cryogenic sensors as the fundamental building block of MEG systems.
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