It is common to believe that passengers are more adversely affected by motion sickness than drivers. However, no study has compared passengers and drivers' neural activities and drivers experiencing motion sickness (MS). Therefore, this study attempts to explore brain dynamics in motion sickness among passengers and drivers. Eighteen volunteers participated in simulating the driving winding road experiment while their subjective motion sickness levels and electroencephalogram (EEG) signals were simultaneously recorded. Independent Component Analysis (ICA) was employed to isolate MS-related independent components (ICs) from EEG. Furthermore, comodulation analysis was applied to decompose spectra of interest ICs, related to MS, to find the specific spectra-related temporally independent modulators (IMs). The results showed that passengers' alpha band (8-12 Hz) power increased in correlation with the MS level in the parietal, occipital midline and left and right motor areas, and drivers' alpha band (8-12 Hz) power showed relatively smaller increases than those in the passenger. Further, the results also indicate that the enhanced activation of alpha IMs in the passenger than the driver is due to a higher degree of motion sickness. In conclusion, compared to the driver, the passenger experience more conflicts among multimodal sensory systems and demand neuro-physiological regulation.

中文翻译：

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比较驾驶员和乘客之间与晕动病相关的大脑活动和神经调节的差异


人们普遍认为，乘客比司机更容易受到晕车的影响。然而，尚无研究比较乘客和驾驶员的神经活动以及患有晕动病 (MS) 的驾驶员。因此，本研究试图探讨乘客和驾驶员晕动病的大脑动力学。 18名志愿者参与模拟驾驶蜿蜒道路实验，同时记录其主观晕车程度和脑电图（EEG）信号。采用独立成分分析 (ICA) 从 EEG 中分离出 MS 相关的独立成分 (IC)。此外，还应用共调制分析来分解与 MS 相关的感兴趣 IC 的光谱，以找到特定的光谱相关的时间独立调制器 (IM)。结果显示，乘客的α波段（8-12 Hz）功率随着顶叶、枕骨中线以及左右运动区的MS水平的增加而增加，而驾驶员的α波段（8-12 Hz）功率则相对较小比乘客中的增加。此外，结果还表明，与驾驶员相比，乘客的 α IM 激活增强是由于晕动病程度更高。总之，与驾驶员相比，乘客在多模态感觉系统之间经历更多的冲突，并且需要神经生理调节。