The development of aperiodic and periodic resting-state power between early childhood and adulthood: New insights from optically pumped magnetometers DOI Creative Commons
Marlee M. Vandewouw, Julie Sato, Kristina Safar

et al.

Developmental Cognitive Neuroscience, Journal Year: 2024, Volume and Issue: 69, P. 101433 - 101433

Published: Aug. 10, 2024

Neurophysiological signals, comprised of both periodic (e.g., oscillatory) and aperiodic non-oscillatory) activity, undergo complex developmental changes between childhood adulthood. With much the existing literature primarily focused on features brain function, our understanding signals is still in its infancy. Here, we are first to examine age-related (peak frequency power) (slope offset) activity using optically pumped magnetometers (OPMs), a new, wearable magnetoencephalography (MEG) technology that particularly well-suited for studying development. We examined these spectral sample (N=65) toddlers (1-3 years), children (4-5 young adults (20-26 (27-38 years). Consistent with extant literature, found significant decreases slope offset, peak power were frequency-specific; show effect sizes also varied across regions. This work not only adds growing body highlighting advantages OPMs, especially development, but contributes novel information regarding variation neurophysiological age brain.

Language: Английский

A Novel, Robust, and Portable Platform for Magnetoencephalography using Optically Pumped Magnetometers DOI Creative Commons
Holly Schofield, Ryan M. Hill, Odile Feys

et al.

Imaging Neuroscience, Journal Year: 2024, Volume and Issue: 2, P. 1 - 22

Published: Jan. 1, 2024

Abstract Magnetoencephalography (MEG) measures brain function via assessment of magnetic fields generated by neural currents. Conventional MEG uses superconducting sensors, which place significant limitations on performance, practicality, and deployment; however, the field has been revolutionised in recent years introduction optically-pumped magnetometers (OPMs). OPMs enable measurement signal without cryogenics, consequently conception “OPM-MEG” systems ostensibly allow increased sensitivity resolution, lifespan compliance, free subject movement, lower cost. However, OPM-MEG is its infancy with existing both sensor system design. Here, we report a new design miniaturised integrated electronic control, high level portability, improved dynamic range. We show that this produces equivalent compared an established instrument; specifically, when measuring task-induced beta-band, gamma-band, evoked neuro-electrical responses, source localisations from two were comparable temporal correlation measured responses was >0.7 at individual >0.9 for groups. Using electromagnetic phantom, demonstrate range running background up to 8 nT. effective gathering data during movement (including sitting-to-standing paradigm) it compatible simultaneous electroencephalography (EEG). Finally, portability moving between laboratories. Overall, our shown be step forward offers attractive platform next generation functional medical imaging.

Language: Английский

Citations

6
Paradigms and methods of noninvasive brain-computer interfaces in motor or communication assistance and rehabilitation: a systematic review DOI
Jianjun Meng, Yuxuan Wei, Ximing Mai

et al.

Medical & Biological Engineering & Computing, Journal Year: 2025, Volume and Issue: unknown

Published: March 10, 2025

Language: Английский

Citations

0
Anatomically Veridical On‐Scalp Sensor Topographies DOI Creative Commons
Nicholas Alexander, Johan Medrano, Robert A. Seymour

et al.

European Journal of Neuroscience, Journal Year: 2025, Volume and Issue: 61(5)

Published: March 1, 2025

ABSTRACT When working with sensor‐level data recorded using on‐scalp neuroimaging methods such as electroencephalography (EEG), it is common practice to use two‐dimensional (2D) representations of sensor positions aid interpretation. Positioning sensors relative anatomy, in the classic 10–20 system EEG electrode placement, enables 2D topographies that are familiar many researchers and clinicians. However, when another increasingly popular method, optically pumped magnetometer–based magnetoencephalography (OP‐MEG), bespoke arrays much more common, these not prepared according any standard principle. Consequently, polar projection often used produce individual directly related anatomy cannot be averaged across people simply. Given current proliferation OP‐MEG facilities globally, this issue will become an increasing hindrance visualising data, particularly for group studies. To address problem, we adapted extended build a flexible, anatomical method applied digitised head shape, fiducials positions. We demonstrate maintains spatially veridical individuals improving on projections at varying OPM array densities. By applying our benefits anatomically can now enjoyed those from OP‐MEG, regardless variation placement sparse or focal arrays.

Language: Английский

Citations

0
Facilitating cognitive neuroscience research with 80-sensor optically pumped magnetometer magnetoencephalography (OPM-MEG) DOI Creative Commons
Wei Xu, Pan Liao, Miao Cao

et al.

NeuroImage, Journal Year: 2025, Volume and Issue: 311, P. 121182 - 121182

Published: April 3, 2025

Language: Английский

Citations

0
The development of aperiodic and periodic resting-state power between early childhood and adulthood: New insights from optically pumped magnetometers DOI Creative Commons
Marlee M. Vandewouw, Julie Sato, Kristina Safar

et al.

Developmental Cognitive Neuroscience, Journal Year: 2024, Volume and Issue: 69, P. 101433 - 101433

Published: Aug. 10, 2024

Neurophysiological signals, comprised of both periodic (e.g., oscillatory) and aperiodic non-oscillatory) activity, undergo complex developmental changes between childhood adulthood. With much the existing literature primarily focused on features brain function, our understanding signals is still in its infancy. Here, we are first to examine age-related (peak frequency power) (slope offset) activity using optically pumped magnetometers (OPMs), a new, wearable magnetoencephalography (MEG) technology that particularly well-suited for studying development. We examined these spectral sample (N=65) toddlers (1-3 years), children (4-5 young adults (20-26 (27-38 years). Consistent with extant literature, found significant decreases slope offset, peak power were frequency-specific; show effect sizes also varied across regions. This work not only adds growing body highlighting advantages OPMs, especially development, but contributes novel information regarding variation neurophysiological age brain.

Language: Английский

Citations

2