Chen Zhe, Treisman Anne
Department of Psychology, University of Canterbury, Christchurch, New Zealand.
Psychol Sci. 2009 May;20(5):560-7. doi: 10.1111/j.1467-9280.2009.02328.x. Epub 2009 Apr 2.
Object-substitution masking (OSM) refers to reduced target discrimination when the target is surrounded by a sparse mask that does not overlap with the target in space but trails it in time. In four experiments, we used a novel paradigm to investigate the extent of processing of a masked target in OSM. We measured response-compatibility effects between target and mask, both when the offsets were simultaneous and when the offset of the mask was delayed. Evidence for both OSM and a dissociation between perception and awareness was found when detecting the match between the target and the mask required feature but not categorical analyses. Our results suggest that the locus of disruption in OSM is likely to be beyond feature analysis of the unreported target.
客体替代掩蔽（OSM）是指当目标被一个在空间上不与目标重叠但在时间上跟随其后的稀疏掩蔽所包围时，目标辨别能力下降。在四项实验中，我们使用了一种新的范式来研究客体替代掩蔽中被掩蔽目标的加工程度。我们测量了目标和掩蔽之间的反应相容性效应，包括两者同时消失以及掩蔽消失延迟的情况。当检测目标与掩蔽之间的匹配需要特征分析而非类别分析时，我们发现了客体替代掩蔽以及知觉与意识分离的证据。我们的结果表明，客体替代掩蔽中的干扰位点可能超出了未报告目标的特征分析。
