| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2014: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2013: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2012: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2011: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
|
|---|
| Outline of Final Research Achievements |
Grasping is a highly complex movement, which involves a large number of hand and arm muscles. Here we explored how the spinal premotor interneurons (PreM-INs) in primate cervical cord and corticomotoneuronal cells (CM cells) in primary motor cortex are involved in coordination of the hand muscles. Our results suggested that the PreM-INs had divergent output effects on hand muscles to form the muscle synergies, which are coordinated patterns muscle activities. On the other hand, the CM cells had a fewer output effects on hand muscles to control each muscle in a more independent manner. These results suggested that primate hand movements are controlled by the two parallel pathways, which are dedicated to synergistic and relatively independent controls. This parallel control might be important to achieve the effective and flexible controls of complex hand movement.
|
