Parieto-Occipital Electrocortical Dynamics during Real-World Table Tennis
Parieto-Occipital Electrocortical Dynamics during Real-World Table Tennis
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DOI：
10.1523/eneuro.0463-22.2023
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发表时间：
2023-04-01
期刊：
影响因子：
3.4
通讯作者：
Ferris, Daniel P.
中科院分区：
文献类型：
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作者：
Studnicki, Amanda;Ferris, Daniel P.
传统的研究视觉加工的人类脑电图（EEG）实验使用受控的实验室条件，具有有限的生态有效性。在真实的世界中，大脑整合复杂的、动态的、多模态的视觉线索来指导运动的执行。顶叶和枕叶皮层在目标导向行为的在线控制中尤为重要。乒乓球运动是一项需要快速整合视觉运动的全身反应性活动，在现实世界的运动中，它提出了无数关于大脑功能的神经认知问题。本研究的目的是量化的皮层电动力学的顶枕皮质，而玩高密度脑电图运动。我们包括分析功率谱密度（PSD），事件相关谱扰动，试验间相位相干性（ITPC），事件相关电位（ERP），和事件相关相位相干性的顶枕源定位集群，而参与者打乒乓球与球机和人。我们发现顶枕叶皮质的频谱功率波动与撞击事件有关。与人类试验相比，球类机器试验显示出更多的U功率波动，事件相关电位的间期相位连贯性和偏转增加，以及顶枕部集群之间的事件相关相位连贯性更高。我们的研究结果表明，用机器进行运动训练与用人类进行训练相比，从根本上改变了大脑动力学。
Traditional human electroencephalography (EEG) experiments that study visuomotor processing use controlled labo-ratory conditions with limited ecological validity. In the real world, the brain integrates complex, dynamic, multimodal visuomotor cues to guide the execution of movement. The parietal and occipital cortices are especially important in the online control of goal-directed actions. Table tennis is a whole-body, responsive activity requiring rapid visuomo-tor integration that presents a myriad of unanswered neurocognitive questions about brain function during real-world movement. The aim of this study was to quantify the electrocortical dynamics of the parieto-occipital cortices while playing a sport with high-density electroencephalography. We included analysis of power spectral densities (PSDs), event-related spectral perturbations, intertrial phase coherences (ITPCs), event-related potentials (ERPs), and event -related phase coherences of parieto-occipital source-localized clusters while participants played table tennis with a ball machine and a human. We found significant spectral power fluctuations in the parieto-occipital cortices tied to hit events. Ball machine trials exhibited more fluctuations in u power around hit events, an increase in in-tertrial phase coherence and deflection in the event-related potential, and higher event-related phase coherence between parieto-occipital clusters as compared with trials with a human. Our results suggest that sport training with a machine elicits fundamentally different brain dynamics than training with a human.