Sareen Preeti, Ehinger Krista A, Wolfe Jeremy M
Visual Attention Lab, Harvard Medical School, Brigham & Women's Hospital, 64 Sidney St. Suite. 170, Cambridge, 02139, MA, USA,
Psychon Bull Rev. 2015 Aug;22(4):980-6. doi: 10.3758/s13423-014-0761-8.
Is an object reflected in a mirror perceived differently from an object that is seen directly? We asked observers to label "everything" in photographs of real-world scenes. Some scenes contained a mirror in which objects could be seen. Reflected objects received significantly fewer labels than did their nonreflected counterparts. If an object was visible only as a reflection, it was labeled more often than a reflected object that appeared both as a reflection and nonreflected in the room. These unique reflected objects were still not labeled more often than the unique nonreflected objects in the room. In a second experiment, we used a change blindness paradigm in which equivalent object changes occurred in the nonreflected and reflected parts of the scene. Reaction times were longer and accuracy was lower for finding the changes in reflections. These results suggest that reflected information is easily discounted when processing images of natural scenes.
镜子中反射的物体与直接看到的物体在感知上是否不同？我们要求观察者对真实场景照片中的“所有事物”进行标注。一些场景中有镜子，能看到其中的物体。反射的物体得到的标注明显少于未反射的对应物体。如果一个物体只能通过反射看到，那么它被标注的频率要高于在房间中既以反射形式出现又以非反射形式出现的反射物体。这些独特的反射物体被标注的频率仍然没有高于房间中独特的非反射物体。在第二个实验中，我们采用了变化盲视范式，其中场景的非反射部分和反射部分发生了等效的物体变化。发现反射部分的变化时，反应时间更长，准确率更低。这些结果表明，在处理自然场景图像时，反射信息很容易被忽视。
