| Project/Area Number |
24700303
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Bioinformatics/Life informatics
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| Research Institution | Toyama Prefectural University |
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Principal Investigator |
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2013: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2012: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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| Keywords | 脳磁図 / ノイズ除去 / 平滑性追跡眼球運動 |
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| Research Abstract |
The mechanism of prediction is necessary for realizing human smooth pursuit eye movements. Some cortical regions are well known for contributing to realize it, but it is not clear yet how the brain represents the spatial-temporal information for the eye movements. To answer such question, we measured MEG data during smooth pursuit tasks. The intensities of estimated cortical currents during all tasks were increased in the cortical regions of the lateral occipital temporal cortex, the intraparietal cortex , the precentral cortex, and the medial superior frontal cortex. These areas are related to the saccadic and smooth pursuit eye movements. We reconstructed the target velocities from the estimated cortical currents using a sparse regression method. Test datasets demonstrated a good performance. These results indicated that this cortical area plays a major role for realizing overt/covert pursuit tasks to represent the spatial-temporal information of the target velocities.
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