附加听觉信号对行人觉察交通信号的影响

Influence of auditory signals on pedestrians'perception of traffic signals

为考察在过街不同阶段(检测阶段/辨别阶段),附加听觉信号对行人觉察有声交通信号灯的影响,分别基于检测任务(试验1)和辨别任务(试验2),采用2(信号灯类型:传统视觉信号灯、有声信号灯)×2(信号灯颜色:红色信号灯、绿色信号灯)的被试内试验设计,考察有声信号灯的视觉与听觉信号是否对行人产生多感觉整合(MSI)效应。研究结果表明:无论在检测还是辨别阶段,有声信号灯均发生MSI效应,存在加工优势;红色信号灯会产生红色心理效应,相比绿色信号灯,行人对红色信号灯的反应更快且更准确;在辨别交通信号阶段,附加听觉信号能够影响个体反应偏向,行人更偏向报告红色有声信号灯。

In order to investigate influence of auditory signals on pedestrians'perception of audible traffic signals in different task stages(detection task,discrimination task),based on these two tasks(experiment 1 and 2),2(types of traffic lights:traditional traffic light and audible traffic light)×2(colors of traffic lights:red and green light)factorial design was adopted to explore whether audible signals can generate MSI.The results show that they do produce MSI with processing advantages in both detection and discrimination tasks.And red light produces psychological effect of red,due to which,pedestrians respond more quickly and accurately to it than green light.It is also found that in stage of discrimination,auditory signals can affect individual's reaction bias,and pedestrians are more inclined to report red audible signal light.