| Project/Area Number |
19390378
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Cerebral neurosurgery
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| Research Institution | Osaka University |
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Principal Investigator |
HIRATA Masayuki Osaka University, 医学系研究科, 特任准教授(常勤) (30372626)
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| Co-Investigator(Kenkyū-buntansha) |
YOSHIMINE Toshiki 大阪大学, 医学系研究科, 教授 (00201046)
YORIFUJI Shiro 大阪大学, 医学系研究科, 教授 (80191675)
KATO Amami 近畿大学, 医学部, 教授 (00233776)
SAITOH Youichi 大阪大学, 医学系研究科, 准教授 (20252661)
KISHIMA Haruhiko 大阪大学, 医学系研究科, 助教 (10332743)
KAMITANI Yukiyasu 株式会社国際電気通信基礎技術研究所, 脳研究所, 主任研究員 (50418513)
SATO Masaaki 株式会社国際電気通信基礎技術研究所, 脳研究所, 室長 (90395129)
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| Project Period (FY) |
2007 – 2009
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| Project Status |
Completed (Fiscal Year 2009)
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| Budget Amount *help |
¥19,240,000 (Direct Cost: ¥14,800,000、Indirect Cost: ¥4,440,000)
Fiscal Year 2009: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2008: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2007: ¥15,080,000 (Direct Cost: ¥11,600,000、Indirect Cost: ¥3,480,000)
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| Keywords | 機能再建 / 機能局在 / 言語 / 脳律動 / 脳磁図 / ブレイン・コンピュータ・インターフェース / ブレイン-コンピュータ・インターフェース |
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| Research Abstract |
Language dominance based on the neuromagnetic oscillatory changes was coincident in 85% with that by the Wada test. Difference in localization between our method and simulation mapping was 6.3mm, which indicates that our method is a feasible noninvasive method. Sliding time window analyses revealed that θ oscillation reflects serial processing, α desynchronization reflects sensorimotor function, and β/low γ desynchronization reflects the activities in the negative motor area and motor language area. Electrocorticograms clearly detected γ oscillation. Electrocorticograms during three types of single syllable phonation were decoded using a support vector machine. Its decoding accuracy peaked at 60-70% in phase with phonation.
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