Morein-Zamir Sharon, Soto-Faraco Salvador, Kingstone Alan
Department of Psychology, University of British Columbia, 2136 West Mall, Vancouver, BC V6T 1Z4, Canada.
Brain Res Cogn Brain Res. 2003 Jun;17(1):154-63. doi: 10.1016/s0926-6410(03)00089-2.
Four experiments investigated whether irrelevant sounds can influence the perception of lights in a visual temporal order judgment task, where participants judged which of two lights appeared first. In Experiment 1, presenting a sound before the first light and after the second light improved performance relative to baseline (sounds appearing simultaneously with the lights), as if the sounds pulled the perception of lights further apart in time. Experiment 2 ruled out an alerting explanation for this effect and indicated that the performance improvement resulted from the second sound trailing the second light. Experiment 3 excluded the possibility that leading or simultaneous sounds were interfering with performance and revealed that only the second sound had an effect within the temporal window known to support multisensory integration. Experiment 4 demonstrated that sounds intervening between the two lights led to a decline in performance, as if the sounds pulled the lights closer together. The results suggest a 'temporal ventriloquism' phenomenon analogous to spatial ventriloquism.
四项实验探究了在视觉时间顺序判断任务中，无关声音是否会影响对灯光的感知，在该任务中参与者要判断两盏灯中哪一盏先出现。在实验1中，相对于基线情况（声音与灯光同时出现），在第一盏灯之前和第二盏灯之后呈现声音能提高表现，就好像声音在时间上把对灯光的感知拉得更远。实验2排除了对此效应的一种警觉性解释，并表明表现的提高是由第二个声音跟随第二盏灯之后所致。实验3排除了先行或同时出现的声音干扰表现的可能性，并揭示出只有第二个声音在已知支持多感官整合的时间窗口内产生了影响。实验4表明，介于两盏灯之间的声音会导致表现下降，就好像声音把灯光拉得更近了。结果表明存在一种类似于空间腹语术的“时间腹语术”现象。
