Atomic and Subatomic Physics Research

The paper demonstrates non-invasive imaging of brain, spinal cord, and muscle interactions during movement using optically-pumped magnetometers.

This paper introduces a system for concurrent non-invasive imaging of brain and spinal cord electrophysiology using wearable optically pumped magnetometers.

This paper introduces a new OPM-MEG system with improved portability and dynamic range, showing comparable performance to existing systems in measuring brain activity.

This study compares optically pumped magnetometers (OPM) and EMG for finger movement discrimination, finding both achieve over 89% accuracy with high agreement.

This paper adapts multipole models for OPM data to improve interference rejection and signal stability across different sensor designs.

This paper introduces wearable magnetoencephalography for hyperscanning, enabling naturalistic social interaction studies with high-fidelity data.

This study detects the 40-Hz auditory steady-state response using optically pumped magnetometers (OPMs) and shows their performance is comparable to conventional SQUID-MEG sensors.

This paper evaluates noise rejection and spatial sampling in multi-axis OPMs using spherical harmonics and eigenspectra, finding triaxial configurations offer superior performance.

This study demonstrates that optically pumped magnetometers with expanded bandwidth can detect magnetic signatures of sensory nerve action potentials and Hoffmann reflexes, suggesting their potential as an electrodiagnostic tool for peripheral nerve diseases.

This study compares OPM-MEG systems in contrasting magnetic environments, showing comparable noise floors and brain activity detection despite significant differences in background field and interference.

This study demonstrates improved spatio-temporal resolution in measuring visually evoked brain fields using optically pumped magnetometers compared to SQUIDs.

This study demonstrates that OP-MEG can measure neural activity during significant head movements, including standing and large natural movements, with consistent auditory evoked fields.

This study uses optically pumped magnetometers to record human retinal activity and compares it to electroretinograms, finding significant shared information and potential for contactless retinal activity recording.

This paper models and corrects magnetic field variations in moving OP-MEG data to reduce movement artefacts.

This study demonstrates that a wearable OPM-MEG system can accurately characterize brain networks, showing high similarity to data from a cryogenic MEG system.

This paper investigates the optimal number and placement of sensors in wearable MEG systems, showing that few sensors at coarse sampling can achieve adequate spatial discrimination under high SNR.

The paper models magnetic interference in optically pumped magnetometers as a mean field to improve statistical power and reduce sensor variability.

This study uses optically pumped magnetometers to measure magnetic fields from muscle action potentials, revealing new insights into their propagation and physiological mechanisms.

This paper investigates the use of mouth-based sensors in magnetoencephalography (MEG) to study the human hippocampus, finding that mouth sensors show unique task-related activity and anti-correlation with temporal lobe sensors.

The paper constructs and evaluates a 49-channel whole-head OPM-MEG system, showing comparable performance to cryogenic MEG with a rigid helmet design.

This study demonstrates that on-scalp MEG using optically-pumped magnetometers can robustly detect human visual gamma-band responses with improved spatial resolution compared to conventional SQUID-based MEG.

This paper demonstrates that optically-pumped magnetometers improve cerebellar MEG signal detection by reducing sensor distance and increasing SNR, revealing evoked and induced responses to sensory stimuli.

This paper develops and validates a co-registration method for on-scalp MEG systems, improving accuracy and ease of use compared to traditional methods.

This paper describes an on-scalp MEG system using optically-pumped magnetometers with external compensation coils to reduce ambient magnetic fields and improve sensor performance.

This paper presents a 7-channel on-scalp MEG system using high-Tc SQUIDs, demonstrating its ability to sensitively sample neuromagnetic fields over a 10 cm2 scalp patch.

This study quantifies the requirements for sensor coregistration accuracy in on-scalp MEG systems using simulations, finding that position errors have a larger impact than orientation errors.

This study compares the performance of on-scalp OPM arrays with a standard SQUID array in MEG, finding higher signal power and information capacity in OPMs.