中文摘要：

草原公路单调枯燥的驾驶环境容易使驾驶员产生驾驶疲劳,严重威胁到行车安全。通过草原二级公路实驾试验,监测驾驶员的脑电信号,探索真实驾驶环境下驾驶员驾驶时的EEG特征。结果表明：β波和（α＋θ）/β这两项指标对驾驶员疲劳反应最为敏感,可以把这两项指标作为表征草原公路驾驶员疲劳的脑电指标;在草原公路150 min的驾驶过程中,驾驶员出现较明显疲劳症状时间段是：20-30 min,80-90 min,90-100 min,100-110 min。其中,在90-110 min这个时间段内疲劳趋势尤为明显。结果可为草原公路驾驶疲劳预警提供部分理论支撑。

英文摘要：

Driver fatigue easily due to the boring driving conditions on prairie highway,which threaten the traffic safety seriously. This article monitors drivers＇ electroencephalogram（ EEG） during real driving test,and explores the driver fatigue characteristics of EEG in real driving conditions. The results show that： these two indicators β waves and（ α ＋ θ） /β are the most sensitive response to the driver fatigue,and could evaluate the driving fatigue on prairie highway as electrical indicators; During 150 mins＇ driving,the peak period of the driving fatigue time are： 20 - 30 min,80 - 90 min,90 - 100 min,100 - 110 min,among them,fatigue trend is especially striking in 90 - 110 min. All above could provide some theory support for driving fatigue warning on prairie highway.