2009 Fiscal Year Final Research Report
Functional localization and restoration of language areas based on the cerebral oscillatory changes
| 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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| 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 |
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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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Research Products
(63 results)
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[Journal Article] Language dominance and mapping based on neuromagnetic oscillatory changes: comparison with invasive procedures2010
Author(s)
Hirata M, Goto T, Barnes G, Umekawa Y, Yanagisawa T, Kato A, Oshino T, Kishima H, Hashimoto N, Saitoh Y, Tani N, Yorofuji S, Yoshimine T
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Journal Title
J Neurosurg 112(3)
Pages: 528-38
Peer Reviewed
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[Journal Article] Neuroimaging study on brain asymmetries in situs inversus totalis.2010
Author(s)
Ihara A, Hirata M, Fujimaki N, Goto T, Umekawa Y, Fujita N, Terazono Y, Matani A, Wei Q, Yoshimine T, Yorifuji S, Murata T
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Journal Title
J Neurol Sci. Jan 15;288(1-2)
Pages: 72-8
Peer Reviewed
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[Journal Article] Modulation of neuronal activity after spinal cord stimulation for neuropathic pain; H(2)(15)O PET study.2010
Author(s)
Kishima H, Saitoh Y, Oshino S, Hosomi K, Ali M, Maruo T, Hirata M, Goto T, Yanagisawa T, Sumitani M, Osaki Y, Hatazawa J, Yoshimine T
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Journal Title
Neuroimage 49(3)
Pages: 2564-9
Peer Reviewed
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[Journal Article] Cortical oscillatory power changes during auditory oddball task revealed by spatially filtered magneto-encephalography.2009
Author(s)
Ishii R, Canuet L, Herdman A, Gunji A, Iwase M, Takahashi H, Nakahachi T, Hirata M, Robinson SE, Pantev C, Takeda M
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Journal Title
Clin Neurophysiol 120(3)
Pages: 497-504
Peer Reviewed
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[Remarks] 平田雅之:NHK総合テレビ、首都圏ネットワーク"脳と機械をつなぐ"研究最前線2009/11/4
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[Remarks] 平田雅之、吉峰俊樹:日本経済新聞「脳信号で操作」実用へ前進2009/9/27
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[Remarks] 平田雅之:毎日放送、VOICE「医工連携」で未来の治療へ、2009/4/9
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[Remarks] 平田雅之、吉峰俊樹:朝日新聞、脳に電極ロボよ動け、2008/4/17
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