Results 31 to 40 of about 816 (174)

New avenues for functional neuroimaging: ultra-high field MRI and OPM-MEG. [PDF]

Psychoradiology, 2021
Abstract Functional brain imaging technology has developed rapidly in recent years. On the one hand, high-field 7-Tesla magnetic resonance imaging (MRI) has excelled the limited spatial resolution of 3-Tesla MRI, allowing us to enter a new world of mesoscopic imaging from the macroscopic imaging of human brain functions.
Qin L, Gao JH.
europepmc   +4 more sources

Magnetoencephalography with optically pumped magnetometers (OPM-MEG): the next generation of functional neuroimaging. [PDF]

Trends Neurosci, 2022
Magnetoencephalography (MEG) measures human brain function via assessment of the magnetic fields generated by electrical activity in neurons. Despite providing high-quality spatiotemporal maps of electrophysiological activity, current MEG instrumentation is limited by cumbersome field sensing technologies, resulting in major barriers to utility.
Brookes MJ, Leggett J, Rea M, Hill RM, Holmes N, Boto E, Bowtell R.   +6 more
europepmc   +3 more sources

Enabling ambulatory movement in wearable magnetoencephalography with matrix coil active magnetic shielding [PDF]

, 2023
The ability to collect high-quality neuroimaging data during ambulatory participant movement would enable a wealth of neuroscientific paradigms. Wearable magnetoencephalography (MEG) based on optically pumped magnetometers (OPMs) has the potential to ...
Boto, Elena, Bowtell, Richard, Brookes, Matthew J, Edwards, Lucy J, Fromhold, T Mark, Glover, Paul, Hill, Ryan M, Hobson, Peter J, Holmes, Niall, Leggett, James, Osborne, James, Rea, Molly, Rier, Lukas, Rivero, Gonzalo Reina, Shah, Vishal, Tierney, Tim M   +15 more
core   +4 more sources

Practical real-time MEG-based neural interfacing with optically pumped magnetometers [PDF]

, 2021
BackgroundBrain-computer interfaces decode intentions directly from the human brain with the aim to restore lost functionality, control external devices or augment daily experiences.
Boto, Elena, Bowtell, Richard, Brookes, Matthew J., Hill, Ryan, Holmes, Niall, Khachatryan, Elvira, Libert, Arno, Rea, Molly, Van Hulle, Marc M., Wittevrongel, Benjamin   +9 more
core   +2 more sources

Wearable neuroimaging: Combining and contrasting magnetoencephalography and electroencephalography [PDF]

, 2019
One of the most severe limitations of functional neuroimaging techniques, such as magnetoencephalography (MEG), is that participants must maintain a fixed head position during data acquisition.
Barnes, Gareth R., Boto, Elena, Bowtell, Richard, Brookes, Matthew J., Fromhold, T. Mark, Hill, Ryan M., Holmes, Niall, Leggett, James, Mullinger, Karen J., Roberts, Gillian, Seedat, Zelekha A., Shah, Vishal, Tierney, Tim M.   +12 more
core   +4 more sources

Non-Invasive Functional-Brain-Imaging with an OPM-based Magnetoencephalography System.

PLoS ONE, 2020
A non-invasive functional-brain-imaging system based on optically-pumped-magnetometers (OPM) is presented. The OPM-based magnetoencephalography (MEG) system features 20 OPM channels conforming to the subject's scalp. We have conducted two MEG experiments
Amir Borna, Tony R Carter, Anthony P Colombo, Yuan-Yu Jau, Jim McKay, Michael Weisend, Samu Taulu, Julia M Stephen, Peter D D Schwindt   +8 more
doaj   +1 more source

Optimal design of on-scalp electromagnetic sensor arrays for brain source localisation [PDF]

, 2021
Optically pumped magnetometers (OPMs) are quickly widening the scopes of noninvasive neurophysiological imaging. The possibility of placing these magnetic field sensors on the scalp allows not only to acquire signals from people in movement, but also to ...
Beltrachini, Leandro, Eichardt, Roland, Ellenrieder, Nicolas von, Haueisen, Jens   +3 more
core   +2 more sources

Optimising the sensing volume of OPM sensors for MEG source reconstruction

NeuroImage, 2022
Magnetoencephalography (MEG) based on optically pumped magnetometers (OPMs) has been hailed as the future of electrophysiological recordings from the human brain.
Yulia Bezsudnova, Lari M. Koponen, Giovanni Barontini, Ole Jensen, Anna U. Kowalczyk   +4 more
doaj   +1 more source

Optimization and Analysis of Tangential Component Orientations in OPM-MEG Sensor Array. [PDF]

Bioengineering (Basel)
Optically pumped magnetometers (OPMs) have brought a transformative advancement to magnetoencephalography (MEG), enabling flexible, noncryogenic, and wearable neuroimaging systems. In particular, the development of triaxial OPM sensors allows for simultaneous measurement of full magnetic field vectors, including both radial and additional tangential ...
Wang W, Cao F, An N, Li W, Wang C, Gao Z, Xiang M, Ning X.   +7 more
europepmc   +3 more sources

Moving magnetoencephalography towards real-world applications with a wearable system [PDF]

, 2018
Imaging human brain function with techniques such as magnetoencephalography1 (MEG) typically requires a subject to perform tasks whilst their head remains still within a restrictive scanner. This artificial environment makes the technique inaccessible to
A Borna, A Mary, BD Van Veen, C Johnson, CN Johnson, D Cohen, E Boto, EL Barratt, Elena Boto, G Pfurtscheller, Gareth R. Barnes, GE Backus, Gillian Roberts, IK Kominis, J Dupont-Roc, J Gross, J Sarvas, J Vrba, James Leggett, JC Allred, JF Hipp, JW Carlson, K Jerbi, K Kamada, K Kim, K Yoda, Karen J. Mullinger, Leonardo Duque Muñoz, M Poole, Matthew J. Brookes, MJ Brookes, MJ Brookes, MS Hämäläinen, Niall Holmes, O Alem, O Alem, PJ Uhlhaas, Richard Bowtell, S Baillet, SE Robson, Sofie S. Meyer, Sven Bestmann, Tim M. Tierney, V Shah, Vishal Shah, VK Shah, W Gaetz   +46 more
core   +4 more sources