| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2014: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2012: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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| Outline of Final Research Achievements |
The interplay of neural discharge patterns involved in respiration, circulation, opening movements in the mandible, and locomotion was investigated electrophysiologically in a decerebrate and arterially perfused in situ preparation. The modulated sympathetic tone activated the forelimb pattern generator and spontaneously generated fictive locomotion. The coupling rhythm of respiration and locomotion during motion occurred. Small increases in blood pressure were always generated after the initiation of motion. Opening movements in the mandible, occurring during the inspiratory (I) phase, were generated in both the I and expiratory (E) phases during motion. The activated cervical cord producing locomotion contributed to generating the opening movement in the mandible in the E phase during motion. These results suggest that this reciprocal functional interaction between the brainstem and the spinal cord plays an important role in increasing oxygenated blood flow during locomotion.
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