Zobrazeno 1 - 10
of 390
pro vyhledávání: '"Optically pumped magnetometer"'
Autor:
Meaghan E. Spedden, George C. O’Neill, Tim M. Tierney, Timothy O. West, Maike Schmidt, Stephanie Mellor, Simon F. Farmer, Sven Bestmann, Gareth R. Barnes
Publikováno v:
Frontiers in Medical Technology, Vol 6 (2024)
Non-invasive imaging of the human spinal cord is a vital tool for understanding the mechanisms underlying its functions in both healthy and pathological conditions. However, non-invasive imaging presents a significant methodological challenge because
Externí odkaz:
https://doaj.org/article/d4378e191f8046cf8b29316e64e875a4
Autor:
Hao Cheng, Kaiyan He, Congcong Li, Xiao Ma, Fufu Zheng, Wei Xu, Pan Liao, Rui Yang, Dongxu Li, Lang Qin, Shuai Na, Bingjiang Lyu, Jia-Hong Gao
Publikováno v:
NeuroImage, Vol 300, Iss , Pp 120864- (2024)
The current magnetoencephalography (MEG) systems, which rely on cables for control and signal transmission, do not fully realize the potential of wearable optically pumped magnetometers (OPM). This study presents a significant advancement in wireless
Externí odkaz:
https://doaj.org/article/9ac94258c6f44f54b725a7d1eee5cd64
Publikováno v:
Shanghai Jiaotong Daxue xuebao, Vol 58, Iss 4, Pp 438-448 (2024)
Aimed at the requirements of optically pumped magnetometer (OPM) for miniaturization, low power consumption and laser frequency stability, a wavelength locking control scheme for vertical-cavity surface-emitting laser is proposed. The proposed method
Externí odkaz:
https://doaj.org/article/3a46db6b066e44fdb8ef2eed465cdb4d
Autor:
Lukas Rier, Natalie Rhodes, Daisie O Pakenham, Elena Boto, Niall Holmes, Ryan M Hill, Gonzalo Reina Rivero, Vishal Shah, Cody Doyle, James Osborne, Richard W Bowtell, Margot Taylor, Matthew J Brookes
Publikováno v:
eLife, Vol 13 (2024)
Neural oscillations mediate the coordination of activity within and between brain networks, supporting cognition and behaviour. How these processes develop throughout childhood is not only an important neuroscientific question but could also shed lig
Externí odkaz:
https://doaj.org/article/e26e05db046f494089c6c9ae74d24e28
Autor:
Xin Zhang, Yan Chang, Hui Wang, Yin Zhang, Tao Hu, Xiao-yu Feng, Ming-kang Zhang, Ze-kun Yao, Chun-qiao Chen, Jia-yu Xu, Fang-yue Fu, Qing-qian Guo, Jian-bing Zhu, Hai-qun Xie, Xiao-dong Yang
Publikováno v:
Journal of Integrative Neuroscience, Vol 23, Iss 5, p 93 (2024)
Background: Magnetoencephalography (MEG) is a non-invasive imaging technique for directly measuring the external magnetic field generated from synchronously activated pyramidal neurons in the brain. The optically pumped magnetometer (OPM) is known fo
Externí odkaz:
https://doaj.org/article/f07669b6412d4ce0982a4b6aee9e4391
Publikováno v:
Bioengineering, Vol 11, Iss 5, p 428 (2024)
A class of algorithms based on subspace projection is widely used in the denoising of magnetoencephalography (MEG) signals. Setting the dimension of the interference (external) subspace matrix of these algorithms is the key to balancing the denoising
Externí odkaz:
https://doaj.org/article/6d5b85e4e6ac4306bda4076d154795d3
Autor:
Stephanie Mellor, Tim M. Tierney, Robert A. Seymour, Ryan C. Timms, George C. O'Neill, Nicholas Alexander, Meaghan E. Spedden, Heather Payne, Gareth R. Barnes
Publikováno v:
NeuroImage, Vol 278, Iss , Pp 120252- (2023)
Most neuroimaging techniques require the participant to remain still for reliable recordings to be made. Optically pumped magnetometer (OPM) based magnetoencephalography (OP-MEG) however, is a neuroimaging technique which can be used to measure neura
Externí odkaz:
https://doaj.org/article/8d7e0428e2e64e84a814effc352e02bd
Autor:
Chun-qiao CHEN, Xin ZHANG, Qing-qian GUO, Jia-yu XU, Xiao-yu FENG, Yan CHANG, Tao HU, Xiao-dong YANG
Publikováno v:
Chinese Journal of Magnetic Resonance, Vol 39, Iss 03, Pp 337-344 (2022)
Magnetoencephalography is a non-invasive technology for brain function imaging, which is of enormous value to brain science research and clinical application due to its ultra-high temporal and spatial trace resolution. In this paper, we introduce a s
Externí odkaz:
https://doaj.org/article/c879a92391ae4ccc81e3f28d8905e301
Autor:
Yusuke Takeda, Tomohiro Gomi, Ryu Umebayashi, Sadamu Tomita, Keita Suzuki, Nobuo Hiroe, Jiro Saikawa, Tatsuya Munaka, Okito Yamashita
Publikováno v:
NeuroImage, Vol 277, Iss , Pp 120257- (2023)
An optically pumped magnetometer (OPM) is a new generation of magnetoencephalography (MEG) devices that is small, light, and works at room temperature. Due to these characteristics, OPMs enable flexible and wearable MEG systems. On the other hand, if
Externí odkaz:
https://doaj.org/article/0a410bcd1d8e407caf547b56092d84ab
Autor:
Orang Alem, K. Jeramy Hughes, Isabelle Buard, Teresa P. Cheung, Tyler Maydew, Andreas Griesshammer, Kendall Holloway, Aaron Park, Vanessa Lechuga, Collin Coolidge, Marja Gerginov, Erik Quigg, Alexander Seames, Eugene Kronberg, Peter Teale, Svenja Knappe
Publikováno v:
Frontiers in Neuroscience, Vol 17 (2023)
Compact optically-pumped magnetometers (OPMs) are now commercially available with noise floors reaching 10 fT/Hz1/2. However, to be used effectively for magnetoencephalography (MEG), dense arrays of these sensors are required to operate as an integra
Externí odkaz:
https://doaj.org/article/89defaca18a44938b1c6daa6e372a509