| Budget Amount *help |
¥38,610,000 (Direct Cost: ¥29,700,000、Indirect Cost: ¥8,910,000)
Fiscal Year 2019: ¥8,840,000 (Direct Cost: ¥6,800,000、Indirect Cost: ¥2,040,000)
Fiscal Year 2018: ¥9,230,000 (Direct Cost: ¥7,100,000、Indirect Cost: ¥2,130,000)
Fiscal Year 2017: ¥9,490,000 (Direct Cost: ¥7,300,000、Indirect Cost: ¥2,190,000)
Fiscal Year 2016: ¥11,050,000 (Direct Cost: ¥8,500,000、Indirect Cost: ¥2,550,000)
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| Outline of Final Research Achievements |
Amphibious animals traverse different environmental media by flexibly changing the coordination of body movements. However, the neural mechanisms underlying flexible motor control in amphibious locomotion remain elusive. Here, we focused on a centipede (Scolopendra subspinipes mutilans) and explore the interplay between central and peripheral control mechanisms during transition between walking on land and swimming in water. Based on the findings obtained through behavioral experiments, we hypothesized that walking or swimming signals generated in the brain are sent posteriorly via distributed neural networks belonging to the central nervous systems and located along the body; these brain signals, can be overridden by sensory signals felt by the peripheral nervous system of the legs when they touch the ground during waling. We described this mechanism mathematically, and well reproduced the behavior of centipedes in different situations through computer simulations.
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