中文摘要：

采用辨别任务探讨了正立与倒立的中性面孔线索对返回抑制的影响。实验一采用同时线索化范式考察了正立与倒立面孔线索对靶刺激反应的影响，结果发现，两种面孔线索对随后靶刺激的反应没有影响。实验二采用单线索范式考察正立与倒立面孔对返回抑制的影响，结果发现，两种线索条件下均产生了返回抑制，而且返回抑制量没有显著差异。实验三，正立与倒立面孔作为靶刺激呈现，得到与实验二相同的结果。这些结果表明当采用中性面孔为线索时，返回抑制的产生并不受线索与靶刺激显著性的影响，而且返回抑制这种“盲目”机制不受任务难度的影响。

英文摘要：

By means of the cue-target method with discrimination tasks, three experiments were conducted to explore the effect of the upright face and the inverted face on inhibition of return （IOR）. In the first experiment, both upright and inverted faces were presented simultaneously as cues. The results of Experiment 1 showed that there was no difference between the upright face cued condition and the inverted face cued condition. In the second experiment, only one face was presented as a cue. In the third experiment, both upright and inverted faces were used as targets. The results showed that the magnitude of IOR was unaffected by face position. These results suggest that IOR is a ＂blind＂ mechanism which is unaffected by the significance of neutral face stimuli.