Getzmann Stephan
Faculty of Psychology, Ruhr-Universität Bochum, Germany.
Perception. 2007;36(7):1089-103. doi: 10.1068/p5741.
When two discrete stimuli are presented in rapid succession, observers typically report a movement of the lead stimulus toward the lag stimulus. The object of this study was to investigate crossmodal effects of irrelevant sounds on this illusion of visual apparent motion. Observers were presented with two visual stimuli that were temporally separated by interstimulus onset intervals from 0 to 350 ms. After each trial, observers classified their impression of the stimuli using a categorisation system. The presentation of short sounds intervening between the visual stimuli facilitated the impression of apparent motion relative to baseline (visual stimuli without sounds), whereas sounds presented before the first and after the second visual stimulus as well as simultaneously presented sounds reduced the motion impression. The results demonstrate an effect of the temporal structure of irrelevant sounds on visual apparent motion that is discussed in light of a related multisensory phenomenon, 'temporal ventriloquism', on the assumption that sounds can attract lights in the temporal dimension.
当两个离散刺激相继快速呈现时，观察者通常会报告领先刺激向滞后刺激的移动。本研究的目的是调查无关声音对这种视觉似动错觉的跨模态影响。向观察者呈现两个视觉刺激，它们在时间上被0至350毫秒的刺激起始间隔隔开。每次试验后，观察者使用分类系统对他们对刺激的印象进行分类。在视觉刺激之间插入短声音相对于基线（无声音的视觉刺激）促进了似动印象，而在第一个视觉刺激之前和第二个视觉刺激之后呈现的声音以及同时呈现的声音则减少了运动印象。研究结果证明了无关声音的时间结构对视觉似动的影响，并根据一种相关的多感官现象“时间腹语术”进行了讨论，其假设是声音可以在时间维度上吸引光线。
