Richard W Bowtell

The neurodevelopmental trajectory of beta band oscillations: an OPM-MEG study

This study uses OPM-MEG to analyze beta band oscillations across childhood, showing age-related changes in beta modulation and whole-brain connectivity.

A Novel, Robust, and Portable Platform for Magnetoencephalography using 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.

Test-Retest Reliability of the Human Connectome: An OPM-MEG study

This study evaluates the test-retest reliability of OPM-MEG for whole-brain functional connectivity, showing high group-level repeatability and individual robustness across theta, alpha, and beta frequency ranges.

Naturalistic hyperscanning with wearable magnetoencephalography

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

Phenotypic and genetic associations of quantitative magnetic susceptibility in UK Biobank brain imaging

The paper develops a QSM pipeline to analyze brain magnetic susceptibility in UK Biobank data, finding associations with iron, disease, and genetic variants.

Using OPM-MEG in contrasting magnetic environments

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.

Magnetic Field Mapping and Correction for Moving OP-MEG

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

Multi-centre, multi-vendor 7 Tesla fMRI reproducibility of hand digit representation in the human somatosensory cortex

This study assesses the reproducibility of 7 Tesla fMRI hand digit representation across multiple sites and within sites, finding lower inter-site than intra-site reproducibility but overall feasibility for multi-site studies.

Measuring functional connectivity with wearable MEG

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

Pragmatic spatial sampling for wearable MEG arrays

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.

Mouth magnetoencephalography: A unique perspective on the human hippocampus

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.

Multi-centre, multi-vendor reproducibility of 7T QSM and R2* in the human brain: results from the UK7T study

This study evaluates the reproducibility of 7T quantitative susceptibility mapping (QSM) and R2* at multiple sites using a harmonized protocol, finding improved consistency compared to 3T.

Multi-Channel Whole-Head OPM-MEG: Helmet Design and a Comparison with a Conventional System

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

Modulating brain networks with transcranial magnetic stimulation over the primary motor cortex: a concurrent TMS/fMRI study

This study uses concurrent TMS/fMRI to show that M1 stimulation affects motor and non-motor brain networks, with state-dependent changes in activation and connectivity.

Using optically-pumped magnetometers to measure magnetoencephalographic signals in the human cerebellum

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.