Ben-Shalom Asaf, Ganel Tzvi
Department of Psychology, Ben-Gurion University of the Negev, Beer-Sheva, Israel.
J Vis. 2012 Jul 26;12(7):15. doi: 10.1167/12.7.15.
Human visual memory is considered to contain different levels of object representations. Representations in visual working memory (VWM) are thought to contain relatively elaborated information about object structure. Conversely, representations in iconic memory are thought to be more perceptual in nature. In four experiments, we tested the effects of two different categories of visual illusions on representations in VWM and in iconic memory. Unlike VWM that was affected by both types of illusions, iconic memory was immune to the effects of within-object contextual illusions and was affected only by illusions driven by between-objects contextual properties. These results show that iconic and visual working memory contain dissociable representations of object shape. These findings suggest that the global properties of the visual scene are processed prior to the processing of specific elements.
人类视觉记忆被认为包含不同层次的物体表征。视觉工作记忆（VWM）中的表征被认为包含有关物体结构的相对详尽的信息。相反，图像记忆中的表征在本质上被认为更具感知性。在四项实验中，我们测试了两类不同视觉错觉对VWM和图像记忆中表征的影响。与受两种错觉影响的VWM不同，图像记忆不受物体内部情境错觉的影响，仅受物体间情境属性驱动的错觉影响。这些结果表明，图像记忆和视觉工作记忆包含可分离的物体形状表征。这些发现表明，视觉场景的全局属性在特定元素的处理之前就已被处理。
