IEEE Trans Neural Syst Rehabil Eng. 2021;29:1259-1267. doi: 10.1109/TNSRE.2021.3092876. Epub 2021 Jul 12.
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.
人们普遍认为，与司机相比，乘客更容易受到晕车的影响。然而，尚无研究比较过乘客和司机的神经活动以及司机的晕车（MS）体验。因此，本研究试图探索乘客和司机在晕车时的大脑动态。18 名志愿者参与了模拟驾驶蜿蜒道路的实验，同时记录他们的主观晕车水平和脑电图（EEG）信号。本研究采用独立成分分析（ICA）从 EEG 中分离出与 MS 相关的独立成分（IC）。此外，还应用共调制分析来分解与 MS 相关的感兴趣的 IC 的频谱，以找到与特定频谱相关的时间独立调制器（IM）。结果表明，乘客的 alpha 波段（8-12Hz）功率与顶叶、枕叶中线以及左、右运动区的晕车水平呈正相关，而司机的 alpha 波段（8-12Hz）功率的增加幅度相对较小。此外，结果还表明，与司机相比，乘客的 alpha IM 激活增强，这是由于晕车程度更高。总之，与司机相比，乘客在多模态感觉系统之间体验到更多的冲突，需要神经生理调节。
