中文摘要：

知觉物体的定义是认知科学领域富有争议的中心问题之一.本研究通过运动诱发视盲（MIB）现象的研究发现：a.两个图形当它们是连通的,或位于同一个洞中,或是具有相同的洞的个数,更倾向于整体共同消失或重现;b.前景图形和背景图形的拓扑性质差异,较之非拓扑性质差异,显著地削弱MIB现象;c.相对于其他各种几何性质的变化,拓扑性质的变化能更快地被知觉到返回意识状态.这些结果揭示了拓扑性质定义的知觉物体是MIB过程操作的基本单元,提示了拓扑性质改变产生新知觉物体的表征可能是意识下的过程,进一步支持了知觉物体的拓扑学定义.

英文摘要：

The definition of perceptual objects is one of the most central but still controversial questions in cognitive science. By using the motion-induced blindness （MIB） paradigm, we found that： a. when two targets were connected, enclosed, or contained the same number of holes, they intended to be grouped together and co-disappeared; b. the targets and background figures with different topological properties significantly weakened MIB effects; c. once observers lost awareness of the targets, the topological changes of the target compared with the non-topological changes, lead it return to awareness much quickly. These results revealed an important role of the topological invariants in the MIB, and provided further support for the topological definition of perceptual objects. Furthermore, current study suggested that the representation of the perceptual new object could be processed in the absence of visual awareness.