Hein Elisabeth, Moore Cathleen M
University of Iowa, Iowa City, Iowa 52242, USA.
Atten Percept Psychophys. 2010 Feb;72(2):398-408. doi: 10.3758/APP.72.2.398.
A central bar presented in counterphase with two flanking bars creates the perception of only two bars, instead of three, flickering (standing wave of invisibility illusion). Current explanations of this illusion highlight the importance of local interactions between the central bar and the flankers as a reason for the invisibility of the central bar. In three experiments, we show that the reduction in visibility of the central bar occurs even when the flankers are spatially separated from the central bar. Thus local mechanisms-low-level lateral inhibition or border-ownership competition-do not suffice to account for the decreased visibility. Furthermore, the reduced visibility of the central bar is accompanied by the perception of the flankers in apparent motion at all separations. We suggest an account of the standing wave phenomenon in terms of object updating: The representation of the central bar is updated with the representation of the flankers leaving the perception of just the flankers moving across space. The stimuli for the key conditions from this study, in QuickTime format, may be down loaded from http://app.psychonomic-journals.org/content/supplemental.
一个处于反相的中央条与两个侧翼条同时呈现时，会产生只有两根条在闪烁的感知，而非三根条，这就是隐形错觉的驻波现象。目前对这种错觉的解释强调中央条与侧翼条之间局部相互作用的重要性，认为这是中央条不可见的原因。在三个实验中，我们发现即使侧翼条与中央条在空间上分离，中央条的可见度仍会降低。因此，局部机制——低水平的侧向抑制或边界所有权竞争——不足以解释可见度的降低。此外，中央条可见度的降低伴随着侧翼条在所有间距下都呈现出明显运动的感知。我们从物体更新的角度对驻波现象进行了解释：中央条的表征与侧翼条的表征进行更新，从而让人感觉只有侧翼条在空间中移动。本研究关键条件下的刺激材料为QuickTime格式，可从http://app.psychonomic-journals.org/content/supplemental下载。
