| Project/Area Number |
21700437
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Neurophysiology and muscle physiology
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| Research Institution | National Center of Neurology and Psychiatry |
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Principal Investigator |
TAKEI Tomohiko 独立行政法人国立精神・神経医療研究センター, 神経研究所・霊長類管理室, 任期付研究員 (50527950)
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| Project Period (FY) |
2009 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2010: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2009: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
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| Keywords | 把握運動 / 運動制御 / 脊髄 / 一次運動野 / 霊長類 |
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| Research Abstract |
Grasping is a highly complex movement, which is involved by 27 hand and arm muscles. Here we explored how the spinal premotor interneurons (PreM-INs) in primate cervical cord and corcicomotoneuronal cells (CM-cells) in primary motor cortex are involved in coordination of the hand muscles. Our results revealed that the PreM-INs had divergent output effects on hand muscles to form the muscle synergy, which is coordinated muscle activities, and the diversity was broader than the CM-cells did. This result suggested that the spinal interneurons play an important role for a coordination of hand muscles during a primate grasping.
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