Cognitive load varies the attention level, which has serious consequences in complex dynamic situations. Assessment of uncertainty in cognitive load during multiple object tracking task is necessary, as it is used to improve the cognitive capabilities. The present research work investigates the uncertainty in cognitive load of multiple object tracking task using electroencephalograph (EEG) on 25 football players. A d2 test of neuropsychological measure of attention was employed before starting the experiment. Each player participated in four levels of the task with variation in the cognitive load, which varies in terms of the targets from 2 to 5. Percentage changes in the power spectral density were estimated for the cognitive levels. Results show that the percentage changes were much more in high cognitive load than in low cognitive load. Significant changes (p < 0.05) were observed in level 1 (− 11.07 to 1.91%), level 2 (− 3.13 to − 14.51%), level 3 (− 6.33 to − 19.46%) and level 4 (− 8.10 to − 20.88%). Variation in the EEG data in terms of the combined uncertainty corresponds very well with low to high cognitive loads. The fourth level of the task with high cognitive load has more uncertainty than the low cognitive load levels. The results are useful for assessing the cognitive state of the player, which is valuable for the design of the effective training model.

中文翻译：

---

基于脑电图的多目标跟踪认知负荷不确定性评估

认知负荷会改变注意力水平，这在复杂的动态情况下会产生严重的后果。评估多对象跟踪任务过程中认知负荷的不确定性是必要的，因为它可用于提高认知能力。本研究工作调查了使用脑电图（EEG）对25名足球运动员进行的多目标跟踪任务的认知负荷的不确定性。在开始实验之前，先进行d2注意力神经心理学测验。每个参与者都参与了四个级别的任务，其中认知负荷有所变化，目标范围从2到5有所不同。估计了认知水平的功率谱密度百分比变化。结果表明，高认知负荷下的百分比变化比低认知负荷下的百分比变化大得多。 在1级（-11.07至1.91％），2级（-3.13至-14.51％），3级（-6.33至-19.46％）和4级（-8.10至-20.88％）中观察到p <0.05）。从组合不确定性来看，EEG数据的变化与从低到高的认知负荷非常吻合。具有较高认知负荷的任务的第四级比具有较低认知负荷的任务具有更多的不确定性。结果对于评估玩家的认知状态很有用，这对于设计有效的训练模型非常有价值。