Direct detection of optogenetically evoked oscillatory neuronal electrical activity in rats using SLOE sequence | |
Wu, Ruiqi3,4; Zhou, Xin3,4; Qiu, Bensheng1; Lei, Hao3,4; Zhang, Yaoyu6,7; Gao, Jia-Hong2,6,7; Chai, Yuhui6,7; Bi, Guoqiang5; Wang, Liping8; Xu, Fuqiang3,4 | |
刊名 | NEUROIMAGE |
2016-01-15 | |
卷号 | 125页码:533-543 |
关键词 | Neuronal current Neuronal electrical activity Oscillatory current Spin-lock Functional MRI Optogenetics |
ISSN号 | 1053-8119 |
DOI | 10.1016/j.neuroimage.2015.10.058 |
英文摘要 | The direct detection of neuronal electrical activity is one of the most challenging goals in non-BOLD fMRI research. Previous work has demonstrated its feasibility in phantom and cell culture studies, but attempts in in vivo studies remain fewand far between. Most recent in vivo studies used T2*-weighted sequences to directly detect neuronal electrical activity evoked by sensory stimulus. As neuronal electrical signal is usually comprised of a series of spectrally distributed oscillatorywaveforms rather than being a direct current, it is most likely to be detected using oscillatory current sensitive sequences. In this study, we explored the potential of using the spin-lock oscillatory excitation (SLOE) sequence with spiral readout to directly detect optogenetically evoked oscillatory neuronal electrical activity, whose main spectral component can be manipulated artificially to match the resonance frequency of spin-lock RF field. In addition, experiments using the stimulus-induced rotary saturation (SIRS) sequence with spiral readout were also performed. Electrophysiological recording and MRI data acquisition were conducted on separate animals. Robust optogenetically evoked oscillatory LFP signals were observed and significant BOLD signals were acquired with the GE-EPI sequence before and after the whole SLOE and SIRS acquisitions, but no significant neuronal current MRI (ncMRI) signal changes were detected. These results indicate that the sensitivity of oscillatory current sensitive sequences needs to be further improved for direct detection of neuronal electrical activity. (C) 2015 Elsevier Inc. All rights reserved. |
资助项目 | China's National Strategic Basic Research Program (973)[2012CB720700] ; Natural Science Foundation of China[81227003] ; Natural Science Foundation of China[81430037] ; Natural Science Foundation of China[31421003] ; Natural Science Foundation of China[91132307] ; Natural Science Foundation of China[31171061] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB02050002] |
WOS研究方向 | Neurosciences & Neurology ; Radiology, Nuclear Medicine & Medical Imaging |
语种 | 英语 |
出版者 | ACADEMIC PRESS INC ELSEVIER SCIENCE |
WOS记录号 | WOS:000366647500048 |
内容类型 | 期刊论文 |
源URL | [http://202.127.146.157/handle/2RYDP1HH/4187] |
专题 | 中国科学院武汉植物园 |
通讯作者 | Gao, Jia-Hong |
作者单位 | 1.Univ Sci & Technol China, Sch Informat Sci & Technol, Hefei 230026, Peoples R China 2.Peking Univ, McGovern Inst Brain Res, Beijing 100871, Peoples R China 3.Chinese Acad Sci, Wuhan Inst Phys & Math, Wuhan, Peoples R China 4.Chinese Acad Sci, CAS Ctr Excellence Brain Sci & Intelligence Techn, Beijing 100864, Peoples R China 5.Univ Sci & Technol China, Sch Life Sci, Hefei 230026, Peoples R China 6.Peking Univ, Ctr MRI Res, Acad Adv Interdisciplinary Studies, Beijing 100871, Peoples R China 7.Peking Univ, Sch Phys, Inst Heavy Ion Phys, Beijing City Key Lab Med Phys & Engn, Beijing 100871, Peoples R China 8.Chinese Acad Sci, Shenzhen Inst Adv Technol, Shenzhen, Peoples R China |
推荐引用方式 GB/T 7714 | Wu, Ruiqi,Zhou, Xin,Qiu, Bensheng,et al. Direct detection of optogenetically evoked oscillatory neuronal electrical activity in rats using SLOE sequence[J]. NEUROIMAGE,2016,125:533-543. |
APA | Wu, Ruiqi.,Zhou, Xin.,Qiu, Bensheng.,Lei, Hao.,Zhang, Yaoyu.,...&Xu, Fuqiang.(2016).Direct detection of optogenetically evoked oscillatory neuronal electrical activity in rats using SLOE sequence.NEUROIMAGE,125,533-543. |
MLA | Wu, Ruiqi,et al."Direct detection of optogenetically evoked oscillatory neuronal electrical activity in rats using SLOE sequence".NEUROIMAGE 125(2016):533-543. |
个性服务 |
查看访问统计 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论