| Project/Area Number |
21650051
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Single-year Grants |
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| Research Field |
Sensitivity informatics/Soft computing
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| Research Institution | Nagaoka University of Technology |
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Principal Investigator |
WADA Yasuhiro 長岡技術科学大学, 工学部, 教授 (70293248)
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| Co-Investigator(Kenkyū-buntansha) |
OHISHI Kiyoshi 長岡技術科学大学, 工学部, 教授 (40185187)
TSUBO Netadashi 長岡技術科学大学, 工学部, 准教授 (50334694)
MATSUZAKI Shuichi 長岡技術科学大学, 工学部, 助教 (60455706)
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| Project Period (FY) |
2009 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| Budget Amount *help |
¥3,150,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥150,000)
Fiscal Year 2011: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2010: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 2009: ¥1,700,000 (Direct Cost: ¥1,700,000)
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| Keywords | ニューラルネットワーク / 学習 / 脳活動 / 運動学習 / 内部モデル / NIRS / 計算論的モデル |
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| Research Abstract |
Recent fMRI studies of human motor function and learning have reported that the magnitude of brain activity involves a decreasing trend over repeated tasks in the absence of improvements in task performance, probably suggesting the effect of habituation. Here we show that similar effect can be detected by NIRS. In experiments, oxygenated hemoglobin(HbO) changes were monitored during a finger tapping task over repeated sessions. Results showed that task-related brain activity exhibited a decreasing trend on motor-related areas over the sessions. These suggest that measurements of NIRS may exhibit the brain-induced trends over repetition of simple motor tasks.
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