Neural substrates of intermanual transfer in force field adaptation
| Project/Area Number |
25750267
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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 |
Developmental mechanisms and the body works
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| Research Institution | Keio University |
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Principal Investigator |
KASUGA SHOKO 慶應義塾大学, 医学部, 特任助教 (70632529)
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| Research Collaborator |
TAJIMI HISASHI 慶應義塾大学, 理工学部, 前期博士課程
USHIBA JUNICHI 慶應義塾大学, 理工学部, 准教授 (00383985)
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2014: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2013: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
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| Keywords | 上肢到達運動 / 力場適応 / 学習転移 / 潜在的運動学習 / 視覚運動回転変換 / 経頭蓋磁気刺激 / リーチング / 誤差学習 |
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| Outline of Final Research Achievements |
Many previous studies reported that newly acquired skills in one arm transferred to the other arm; however, neural substrates of such intermanual transfer have yet to be clarified. In the current study, to reveal the contribution of the primary cortex (M1) to intermanual transfer of motor adaptation during an arm-reaching task, I disrupted M1 activity during movements by transcranial magnetic stimulation and see the effect on intermanual transfer.
I found that intermanual transfer was mediated by uinlateral M1 controlling the untrained arm, and occurs in a trial-by-trial manner. In addition, motor adaptation of the trained arm and intermanual transfer to the untrained arm were observed depending on the direction of dynamical perturbation during the arm-reaching task.
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Report
(4 results)
Research Products
(2 results)
