Presentation | 2016-05-21 High-Sensitive Imaging of Motor Cortex Activity Using Cortical Current Source Estimation Shuka Shibusawa, Shohei Tsuchimoto, Shoko Kasuga, Kenji Kato, Emi Yamada, Hiroki Ebata, Meigen Liu, Junichi Ushiba, |
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PDF Download Page | PDF download Page Link |
Abstract(in Japanese) | (See Japanese page) |
Abstract(in English) | Electroencephalography (EEG) is often used for Brain-Machine Interface (BMI) rehabilitation, which aims to restoring motor function after stroke because it requires quick preparation, low movement constraints, and high temporal resolutions. However, spatial resolution of EEG is low, and there are signal contaminations in a sensor from brain activities in different regions. Cortical current source estimation is one of the major approaches to solve this problem. However, although its spatial accuracy has been verified, reliability that the estimation reflects physio-logical neural activity is still unclear. Therefore, in order to evaluate whether the estimated current source reliability captures spontaneous brain activity, we measured EEG and fMRI simultaneously, and analyzed a correlation between fMRI BOLD signals and the estimated current source. The result indicates that the current source estimation reflects physiological dynamics with higher sensitivity than conventional EEG, in terms of both temporal factor and spatial factor. |
Keyword(in Japanese) | (See Japanese page) |
Keyword(in English) | Brain-Machine Interface / simultaneous EEG and fMRI / inverse problem / brain activity in resting state |
Paper # | NC2016-3 |
Date of Issue | 2016-05-14 (NC) |
Conference Information | |
Committee | MBE / NC |
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Conference Date | 2016/5/21(1days) |
Place (in Japanese) | (See Japanese page) |
Place (in English) | University of Toyama |
Topics (in Japanese) | (See Japanese page) |
Topics (in English) | |
Chair | Tetsuo Kobayashi(Kyoto Univ.) / Toshimichi Saito(Hosei Univ.) |
Vice Chair | Yutaka Fukuoka(Kogakuin Univ.) / Shigeo Sato(Tohoku Univ.) |
Secretary | Yutaka Fukuoka(akita noken) / Shigeo Sato(Kogakuin Univ.) |
Assistant | Takenori Oida(Kyoto Univ.) / Ryota Horie(Shibaura Inst. of Tech.) / Hiroyuki Kanbara(Tokyo Inst. of Tech.) / Hisanao Akima(Tohoku Univ.) |
Paper Information | |
Registration To | Technical Committee on ME and Bio Cybernetics / Technical Committee on Neurocomputing |
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Language | JPN |
Title (in Japanese) | (See Japanese page) |
Sub Title (in Japanese) | (See Japanese page) |
Title (in English) | High-Sensitive Imaging of Motor Cortex Activity Using Cortical Current Source Estimation |
Sub Title (in English) | |
Keyword(1) | Brain-Machine Interface |
Keyword(2) | simultaneous EEG and fMRI |
Keyword(3) | inverse problem |
Keyword(4) | brain activity in resting state |
1st Author's Name | Shuka Shibusawa |
1st Author's Affiliation | Keio University(Keio Univ.) |
2nd Author's Name | Shohei Tsuchimoto |
2nd Author's Affiliation | Keio University(Keio Univ.) |
3rd Author's Name | Shoko Kasuga |
3rd Author's Affiliation | Keio University(Keio Univ.) |
4th Author's Name | Kenji Kato |
4th Author's Affiliation | Keio University(Keio Univ.) |
5th Author's Name | Emi Yamada |
5th Author's Affiliation | Saiseikai Kanagawa-ken hospital(Saiseikai) |
6th Author's Name | Hiroki Ebata |
6th Author's Affiliation | Saiseikai Kanagawa-ken hospital(Saiseikai) |
7th Author's Name | Meigen Liu |
7th Author's Affiliation | Keio University(Keio Univ.) |
8th Author's Name | Junichi Ushiba |
8th Author's Affiliation | Keio University(Keio Univ.) |
Date | 2016-05-21 |
Paper # | NC2016-3 |
Volume (vol) | vol.116 |
Number (no) | NC-59 |
Page | pp.pp.11-16(NC), |
#Pages | 6 |
Date of Issue | 2016-05-14 (NC) |