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Theoretical advantages of a triaxial optically pumped magnetometer magnetoencephalography system (2021)
Journal Article
Brookes, M. J., Boto, E., Rea, M., Shah, V., Osborne, J., Holmes, N., Hill, R. M., Leggett, J., Rhodes, N., & Bowtell, R. (2021). Theoretical advantages of a triaxial optically pumped magnetometer magnetoencephalography system. NeuroImage, 236, Article 118025. https://doi.org/10.1016/j.neuroimage.2021.118025

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 operat... Read More about Theoretical advantages of a triaxial optically pumped magnetometer magnetoencephalography system.

Mouth magnetoencephalography: A unique perspective on the human hippocampus (2020)
Journal Article
Tierney, T. M., Levy, A., Barry, D. N., Meyer, S. S., Shigihara, Y., Everatt, M., Mellor, S., Lopez, J. D., Bestmann, S., Holmes, N., Roberts, G., Hill, R. M., Boto, E., Leggett, J., Shah, V., Brookes, M. J., Bowtell, R., Maguire, E. A., & Barnes, G. R. (2021). Mouth magnetoencephalography: A unique perspective on the human hippocampus. NeuroImage, 225, Article 117443. https://doi.org/10.1016/j.neuroimage.2020.117443

Traditional magnetoencephalographic (MEG) brain imaging scanners consist of a rigid sensor array surrounding the head; this means that they are maximally sensitive to superficial brain structures. New technology based on optical pumping means that we... Read More about Mouth magnetoencephalography: A unique perspective on the human hippocampus.

Multi-channel whole-head OPM-MEG: Helmet design and a comparison with a conventional system (2020)
Journal Article
Hill, R. M., Boto, E., Rea, M., Holmes, N., Leggett, J., Coles, L. A., Papastavrou, M., Everton, S., Hunt, B. A., Sims, D., Osborne, J., Shah, V., Bowtell, R., & Brookes, M. J. (2020). Multi-channel whole-head OPM-MEG: Helmet design and a comparison with a conventional system. NeuroImage, 219, Article 116995. https://doi.org/10.1016/j.neuroimage.2020.116995

© 2020 The Authors Magnetoencephalography (MEG) is a powerful technique for functional neuroimaging, offering a non-invasive window on brain electrophysiology. MEG systems have traditionally been based on cryogenic sensors which detect the small extr... Read More about Multi-channel whole-head OPM-MEG: Helmet design and a comparison with a conventional system.

A tool for functional brain imaging with lifespan compliance (2019)
Journal Article
Hill, R. M., Boto, E., Holmes, N., Hartley, C., Seedat, Z. A., Leggett, J., Roberts, G., Shah, V., Tierney, T. M., Woolrich, M. W., Stagg, C. J., Barnes, G. R., Bowtell, R. R., Slater, R., & Brookes, M. J. (2019). A tool for functional brain imaging with lifespan compliance. Nature Communications, 10, Article 4785. https://doi.org/10.1038/s41467-019-12486-x

The human brain undergoes significant functional and structural changes in the first decades of life, as the foundations for human cognition are laid down. However, non-invasive imaging techniques to investigate brain function throughout neurodevelop... Read More about A tool for functional brain imaging with lifespan compliance.

Balanced, bi-planar magnetic field and field gradient coils for field compensation in wearable magnetoencephalography (2019)
Journal Article
Holmes, N., Tierney, T. M., Leggett, J., Boto, E., Mellor, S., Roberts, G., Hill, R. M., Shah, V., Barnes, G. R., Brookes, M. J., & Bowtell, R. (2019). Balanced, bi-planar magnetic field and field gradient coils for field compensation in wearable magnetoencephalography. Scientific Reports, 9, Article 14196. https://doi.org/10.1038/s41598-019-50697-w

To allow wearable magnetoencephalography (MEG) recordings to be made on unconstrained subjects the spatially inhomogeneous remnant magnetic field inside the magnetically shielded room (MSR) must be nulled. Previously, a large bi-planar coil system wh... Read More about Balanced, bi-planar magnetic field and field gradient coils for field compensation in wearable magnetoencephalography.

Data‐driven model optimization for optically pumped magnetometer sensor arrays (2019)
Journal Article
Duque‐Muñoz, L., Tierney, T. M., Meyer, S. S., Boto, E., Holmes, N., Roberts, G., Leggett, J., Vargas‐Bonilla, J. F., Bowtell, R., Brookes, M. J., López, J. D., & Barnes, G. R. (2019). Data‐driven model optimization for optically pumped magnetometer sensor arrays. Human Brain Mapping, 40(15), 4357-4369. https://doi.org/10.1002/hbm.24707

© 2019 The Authors. Human Brain Mapping published by Wiley Periodicals, Inc. Optically pumped magnetometers (OPMs) have reached sensitivity levels that make them viable portable alternatives to traditional superconducting technology for magnetoenceph... Read More about Data‐driven model optimization for optically pumped magnetometer sensor arrays.

Towards OPM-MEG in a virtual reality environment (2019)
Journal Article
Roberts, G., Holmes, N., Alexander, N., Boto, E., Leggett, J., Hill, R. M., Shah, V., Rea, M., Vaughan, R., Maguire, E. A., Kessler, K., Beebe, S., Fromhold, M., Barnes, G. R., Bowtell, R., & Brookes, M. J. (2019). Towards OPM-MEG in a virtual reality environment. NeuroImage, 199, 408-417. https://doi.org/10.1016/j.neuroimage.2019.06.010

Virtual reality (VR) provides an immersive environment in which a participant can experience a feeling of presence in a virtual world. Such environments generate strong emotional and physical responses and have been used for wide-ranging applications... Read More about Towards OPM-MEG in a virtual reality environment.