| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2017: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Outline of Final Research Achievements |
In previous human studies of neural reflex networks between bilateral arms, only long-latency reflexes mediated by the cerebrum have been reported, and short-latency reflexes have not been reported so far. In the present study, we demonstrated the existence of a short latency reflex circuit via the spinal cord without the cerebrum in human upper limbs by increasing the number of experiments to reduce the influence of noise components in the observed data. During one-handed reaching, the intensity of the long latency reflex activity in the muscles that produce the reaching motion is adjusted according to the phase of the reaching motion in order to perform the motion efficiently. This adjustment was independent of the direction of the reaching and the type of muscle.
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