High-density neural recordings from feline sacral dorsal root ganglia with thin-film array
High-density neural recordings from feline sacral dorsal root ganglia with thin-film array
复制标题
使用薄膜阵列对猫骶骨背根神经节进行高密度神经记录
DOI:
10.1088/1741-2552/abe398
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发表时间:
2021
影响因子:
4
通讯作者:
Bruns, Tim M
中科院分区:
文献类型:
--
作者:
Sperry, Zachariah J;Na, Kyounghwan;Jun, James;Madden, Lauren R;Socha, Alec;Yoon, Eusik;Seymour, John P;Bruns, Tim M
ObjectiveDorsal root ganglia (DRG) are promising sites for recording sensory activity. Current technologies for DRG recording are stiff and typically do not have sufficient site density for high-fidelity neural data techniques.ApproachIn acute experiments, we demonstrate single-unit neural recordings in sacral DRG of anesthetized felines using a 4.5 µm thick, high-density flexible polyimide microelectrode array with 60 sites and 30–40 µm site spacing. We delivered arrays into DRG with ultrananocrystalline diamond shuttles designed for high stiffness affording a smaller footprint. We recorded neural activity during sensory activation, including cutaneous brushing and bladder filling, as well as during electrical stimulation of the pudendal nerve and anal sphincter. We used specialized neural signal analysis software to sort densely packed neural signals.Main resultsWe successfully delivered arrays in five of six experiments and recorded single-unit sensory activity in four experiments. The median neural signal amplitude was 55 μV peak-to-peak and the maximum unique units recorded at one array position was 260, with 157 driven by sensory or electrical stimulation. In one experiment, we used the neural analysis software to track eight sorted single units as the array was retracted∼ 500 μm.SignificanceThis study is the first demonstration of ultrathin, flexible, high-density electronics delivered into DRG, with capabilities for recording and tracking sensory information that are a significant improvement over conventional DRG interfaces.
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DOI:
10.1002/cne.24848
发表时间:
2020
期刊:
The Journal of comparative neurology
影响因子:
--
作者:
Sperry,ZachariahJ;Graham,RobertD;Peck-Dimit,Nicholas;Lempka,ScottF;Bruns,TimM
通讯作者:
Bruns,TimM
影响因子:
4
作者:
Kevin W King;William F Cusack;A. Nanivadekar;Christopher A. Ayers;M A Urbin;R. Gaunt;L. Fisher;D. J. Weber
通讯作者:
D. J. Weber
DOI:
10.1101/435800
发表时间:
2018
期刊:
bioRxiv
影响因子:
--
作者:
Kyounghwan Na;Zachariah J. Sperry;Jiaao Lu;M. Vöröslakos;Saman Parizi;T. Bruns;E. Yoon;J. Seymour
通讯作者:
J. Seymour
影响因子:
2.1
作者:
Mathews, Kiran S.;Wark, Heather A. C.;Normann, Richard A.
通讯作者:
Normann, Richard A.
DOI:
--
发表时间:
2008
期刊:
Neural Information Processing Systems
影响因子:
--
作者:
Jan Gasthaus;Frank D. Wood;Dilan Görür;Y. Teh
通讯作者:
Y. Teh