DeCouto Brady S, Smeeton Nicholas J, Williams A Mark
Healthspan, Resilience & Performance Research Group, Florida Institute for Human & Machine Cognition, 40 South Alcaniz St., Pensacola, FL 32502, USA.
Department of Health & Kinesiology, College of Health, University of Utah, 383 Colorow Drive, Suite 260, Salt Lake City, UT 84112, USA.
Brain Sci. 2023 Aug 15;13(8):1204. doi: 10.3390/brainsci13081204.
Global and local biological motion processing are likely influenced by an observer's perceptual experience. Skilled athletes anticipating an opponent's movements use globally distributed motion information, while less skilled athletes focus on single kinematic cues. Published reports have demonstrated that attention can be primed globally or locally before perceptual tasks; such an intervention could highlight motion processing mechanisms used by skilled and less skilled observers. In this study, we examined skill differences in biological motion processing using attentional priming. Skilled ( = 16) and less skilled ( = 16) players anticipated temporally occluded videos of volleyball attacks after being primed using a Navon matching task while parietal EEG was measured. Skilled players were more accurate than less skilled players across priming conditions. Global priming improved performance in both skill groups. Skilled players showed significantly reduced alpha and beta power in the right compared to left parietal region, but brain activity was not affected by the priming interventions. Our findings highlight the importance of right parietal dominance for skilled performers, which may be functional for inhibiting left hemispheric local processing or enhancing visual spatial attention for dynamic visual scenes. Further work is needed to systematically determine the function of this pattern of brain activity during skilled anticipation.
全局和局部生物运动处理可能受到观察者感知经验的影响。熟练的运动员在预测对手动作时会使用全局分布的运动信息，而技能较低的运动员则专注于单个运动线索。已发表的报告表明，在感知任务之前，注意力可以被全局或局部启动；这样的干预可以突出熟练和不熟练观察者所使用的运动处理机制。在本研究中，我们使用注意力启动来研究生物运动处理中的技能差异。在测量顶叶脑电图的同时，熟练（n = 16）和不熟练（n = 16）的球员在使用纳冯匹配任务进行启动后，预测排球进攻的时间遮挡视频。在各种启动条件下，熟练球员比不熟练球员更准确。全局启动提高了两个技能组的表现。与左顶叶区域相比，熟练球员右顶叶区域的阿尔法和贝塔功率显著降低，但大脑活动不受启动干预的影响。我们的研究结果突出了右顶叶优势对熟练表演者的重要性，这可能对抑制左半球局部处理或增强动态视觉场景的视觉空间注意力具有功能性作用。需要进一步的工作来系统地确定这种大脑活动模式在熟练预测过程中的功能。
