Department of Psychology, University of Würzburg, Germany.
Department of Psychology, University of Würzburg, Germany.
Vision Res. 2021 Nov;188:193-201. doi: 10.1016/j.visres.2021.07.016. Epub 2021 Aug 4.
An object is perceived as larger when it is surrounded by smaller context objects than when it is surrounded by larger context objects. The origin of this well-known phenomenon, called as Ebbinghaus or Titchener circles illusion, is still puzzling. Here we introduce a basic explanation of how this illusion could emerge and provide some preliminary empirical support for this idea. In essence, we suggest that changes in the figural extent and in the spatial frequency of the stimulus pattern entail adjustments of the size and resolution of the attentional field, which are accompanied by changes in spatial coding. This approach is consistent with previous observations and can enable a deeper understanding of geometric illusions.
当一个物体被较小的上下文物体包围时，它会被感知为更大；而当它被较大的上下文物体包围时，它会被感知为更小。这种被称为艾宾浩斯或铁钦纳圈错觉的著名现象的起源仍然令人费解。在这里，我们介绍了一种关于这种错觉如何产生的基本解释，并为这个想法提供了一些初步的经验支持。从本质上讲，我们认为刺激模式的图形范围和空间频率的变化需要调整注意力场的大小和分辨率，这伴随着空间编码的变化。这种方法与以前的观察结果一致，可以使我们更深入地理解几何错觉。
