Dixon N F, Spitz L
Perception. 1980;9(6):719-21. doi: 10.1068/p090719.
Subjects were presented with a film and its soundtrack through apparatus which enabled asynchrony between picture and sound to be increased. It was found that asynchrony is more easily detected when sound precedes picture, and for a hammer hitting a peg than for someone speaking. These preliminary results suggest that we learn to tolerate the asynchrony between hearing and vision produced by the slower transmission of sound than of light.
通过能够增加画面与声音异步性的设备，向受试者播放一部电影及其配乐。研究发现，当声音先于画面出现时，异步性更容易被察觉，而且相较于某人说话，锤子敲击钉子的声音时更易察觉。这些初步结果表明，我们学会了容忍由于声音传播速度比光慢而产生的听觉与视觉之间的异步性。
