青年学生面对交通事故视频的主客观状态研究

Study on the Subjective and Objective State of Young Students Facing Traffic Accident Videos

道路交通事故的发生通常具有不可预测性,并伴随突发性的特征,驾驶员在此过程中的状态对交通安全具有显著影响。以青年学生为研究对象,针对4种不同类型的交通事故场景视频,以时频分析和频域分析方法对脑电信号进行特征分析,利用李克特五级量表评估被试的主观感受。结合调查问卷中被试者个人信息与各节律脑电变化情况进行量化分析建模。结果表明,青年男性相对于女性表现出了更强的心理素质,情绪平稳。青年学生不易产生愤怒情绪,但对事故发生普遍存在焦虑。驾驶里程对θ波和β波均具有显著性差异。在面对追尾碰撞和行人刮碰事故中,大脑前额叶区的θ波变化较明显,θ波可作为安全驾驶的评价指标。

The occurrence of road traffic accidents is usually unpredictable and accompanied by sudden characteristics.The state of drivers in this process is of a significant impact on traffic safety.In this paper,young students are taken as the research object.According to four different types of traffic accident scene videos,the characteristics of EEG signals are analyzed by time⁃frequency analysis and frequency domain analysis methods,and the subjects'subjective feelings are evaluated by using Likert 5 scale.Quantitative analysis and modeling were carried out based on the subjects'personal information and EEG changes in each rhythm in the questionnaire.The results showed that young males showed greater psychological fitness and emotional stability relative to females.Young students were less prone to anger but generally anxious about the occurrence of accidents.Driving mileage was significant for bothθandβwaves.In the face of rear end collision and pedestrian scratching accidents,θwave changes in the prefrontal region of the brain were more obvious,andθwave can be used as an evaluation index for safe driving.