Experimental Psychology, Utrecht University, Utrecht, The Netherlands.
PLoS One. 2013 Apr 26;8(4):e62131. doi: 10.1371/journal.pone.0062131. Print 2013.
The question of whether perceptual illusions influence eye movements is critical for the long-standing debate regarding the separation between action and perception. To test the role of auditory context on a visual illusion and on eye movements, we took advantage of the fact that the presence of an auditory cue can successfully modulate illusory motion perception of an otherwise static flickering object (sound-induced visual motion effect). We found that illusory motion perception modulated by an auditory context consistently affected saccadic eye movements. Specifically, the landing positions of saccades performed towards flickering static bars in the periphery were biased in the direction of illusory motion. Moreover, the magnitude of this bias was strongly correlated with the effect size of the perceptual illusion. These results show that both an audio-visual and a purely visual illusion can significantly affect visuo-motor behavior. Our findings are consistent with arguments for a tight link between perception and action in localization tasks.
是否知觉错觉会影响眼球运动，这对于关于动作和知觉分离的长期争论至关重要。为了测试听觉背景对视觉错觉和眼球运动的作用，我们利用这样一个事实，即听觉线索的存在可以成功地调节否则静态闪烁物体的错觉运动感知（声音诱导的视觉运动效应）。我们发现，由听觉背景调制的错觉运动感知一致地影响了扫视眼动。具体来说，朝向外围的静态闪烁棒进行扫视的着陆位置偏向于错觉运动的方向。此外，这种偏差的大小与知觉错觉的效应大小强烈相关。这些结果表明，视听和纯粹的视觉错觉都可以显著影响视觉运动行为。我们的发现与在定位任务中关于感知和动作之间紧密联系的论点是一致的。
