| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2019: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2018: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Outline of Final Research Achievements |
Neural mechanism of convergent eye movements has not been well analyzed so far. We so far showed the detailed neural circuits for saccadic eye movements from the superior collisulus to ocular motoneurons. In addition, our previous study revealed that the superior colliculus also exerts excitation for convergent eye movements on medial rectus motoneurons, which is mediated by the supraoculomotor area (SOA). The present study revealed that neurons located in the midbrain reticular formation lateral to the SOA are also involved in transmission of such input. The results suggest that neurons in the SOA and the adjacent region in the midbrain reticular formation in the cat may constitute a functional unit in the output pathway of convergent eye movements, and that these neurons are likely to be involved in disjunctive eye movements.
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