Visual Motion Processing Subserves Faster Visuomotor Reaction in Badminton Players
Visual Motion Processing Subserves Faster Visuomotor Reaction in Badminton Players
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DOI：
10.1249/mss.0000000000001198
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发表时间：
2017-06-01
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影响因子：
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通讯作者：
Mierau, Andreas
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作者：
Huelsduenker, Thorben;Strueder, Heiko K.;Mierau, Andreas
运动员在球类或球拍运动中必须在关键的时间压力下对视觉刺激做出反应。以前的研究使用视觉对比刺激来确定运动员和非运动员的视觉感知和视觉反应;然而，球和球拍运动的特点是运动，而不是对比视觉线索。由于视觉对比度和运动信号在不同的皮层区域进行处理，本研究旨在确定运动员和nonathlets.Methods 25熟练的羽毛球运动员和28年龄匹配的非运动员控制之间的视觉运动的感知和处理的差异参加了这项研究。利用64通道脑电系统，我们研究了不同速度的径向运动对运动敏感的中颞叶（MT）皮质区的视觉运动知觉/加工的影响。在简单的视觉反应任务中，研究了Brodmann 6区（BA 6）和BA 4区的视觉转换以及肌肉激活（EMG起始）和视觉反应时间（VMRT）。结果与非运动员相比，运动员的EMG起始时间（217 vs 178 ms，P < 0.001）和VMRT（274 vs 243 ms，P <0.001）均明显提前;此外，运动员表现出更早的MT（200 vs 182 ms，P = 0.002）和BA 6（161 vs 137 ms，P = 0.009）的刺激锁定峰激活。MT的反应锁定峰激活在运动员中较晚（-7 vs 26 ms，P < 0.001），而在BA 6和BA 4中没有观察到组间差异。多元回归分析显示，刺激锁定和反应锁定皮层电位预测EMG起始（r = 0.83）和VMRT（r = 0.77）。结论运动员视觉运动反应的上级表现主要与视知觉有关，与运动相关过程也有一定关系。
Introduction Athletes participating in ball or racquet sports have to respond to visual stimuli under critical time pressure. Previous studies used visual contrast stimuli to determine visual perception and visuomotor reaction in athletes and nonathletes; however, ball and racquet sports are characterized by motion rather than contrast visual cues. Because visual contrast and motion signals are processed in different cortical regions, this study aimed to determine differences in perception and processing of visual motion between athletes and nonathletes.Methods Twenty-five skilled badminton players and 28 age-matched nonathletic controls participated in this study. Using a 64-channel EEG system, we investigated visual motion perception/processing in the motion-sensitive middle temporal (MT) cortical area in response to radial motion of different velocities. In a simple visuomotor reaction task, visuomotor transformation in Brodmann area 6 (BA6) and BA4 as well as muscular activation (EMG onset) and visuomotor reaction time (VMRT) were investigated. Stimulus- and response-locked potentials were determined to differentiate between perceptual and motor-related processes.Results As compared with nonathletes, athletes showed earlier EMG onset times (217 vs 178 ms, P < 0.001), accompanied by a faster VMRT (274 vs 243 ms, P < 0.001). Furthermore, athletes showed an earlier stimulus-locked peak activation of MT (200 vs 182 ms, P = 0.002) and BA6 (161 vs 137 ms, P = 0.009). Response-locked peak activation in MT was later in athletes (-7 vs 26 ms, P < 0.001), whereas no group differences were observed in BA6 and BA4. Multiple regression analyses with stimulus- and response-locked cortical potentials predicted EMG onset (r = 0.83) and VMRT (r = 0.77).Conclusion The athletes' superior visuomotor performance in response to visual motion is primarily related to visual perception and, to a minor degree, to motor-related processes.