Berger Christopher C, Ehrsson H Henrik
Department of Neuroscience, Karolinska Institutet Stockholm, Sweden.
Front Neurosci. 2016 Dec 5;10:559. doi: 10.3389/fnins.2016.00559. eCollection 2016.
The visual motion aftereffect is a visual illusion in which exposure to continuous motion in one direction leads to a subsequent illusion of visual motion in the opposite direction. Previous findings have been mixed with regard to whether this visual illusion can be induced cross-modally by auditory stimuli. Based on research on multisensory perception demonstrating the profound influence auditory perception can have on the interpretation and perceived motion of visual stimuli, we hypothesized that exposure to auditory stimuli with strong directional motion cues should induce a visual motion aftereffect. Here, we demonstrate that horizontally moving auditory stimuli induced a significant visual motion aftereffect-an effect that was driven primarily by a change in visual motion perception following exposure to leftward moving auditory stimuli. This finding is consistent with the notion that visual and auditory motion perception rely on at least partially overlapping neural substrates.
视觉运动后效是一种视觉错觉，即暴露于一个方向的连续运动中会导致随后出现相反方向的视觉运动错觉。关于这种视觉错觉是否能由听觉刺激跨模态诱发，以往的研究结果并不一致。基于多感官知觉的研究表明，听觉知觉对视觉刺激的解释和感知运动有深远影响，我们假设暴露于具有强烈方向运动线索的听觉刺激中会诱发视觉运动后效。在这里，我们证明水平移动的听觉刺激诱发了显著的视觉运动后效——这种效应主要是由暴露于向左移动的听觉刺激后视觉运动感知的变化所驱动的。这一发现与视觉和听觉运动感知至少部分依赖于重叠神经基质的观点一致。
