The paper studies the neural mechanism of advanced volleyball players' decision-making behavior based on sports situations. In this study, the author adopts behavioral test and to try to systematically explore the sports situationbased neural mechanism and its plasticity. The study finds that the volleyball decision-making test system can test players' decision-making behavior at different sports levels with a high validity. There is a significant difference in the decision-making behavior of players at different sports levels, and high level athletes achieve high accuracy rate and possess quick reaction. The brain gray matter volume near lateral occipital lobe responsible for visual information process in the right cerebral hemisphere and the thickness of the cerebral cortex of the high-level volleyball players and those of the ordinary are significantly different.

Sports Situation, Movement Decision-making, Neural Mechanism