Yeh Yei-Yu, Yang Cheng-Ta
Department of Psychology, National Taiwan University, Taipei, Taiwan.
Conscious Cogn. 2009 Mar;18(1):91-102. doi: 10.1016/j.concog.2008.10.009. Epub 2008 Dec 16.
We investigated whether a pre-change representation is inhibited or weakened under correct change detection. Two arrays of six objects were rapidly presented for change detection in three experiments. After detection, the perceptual identification of degraded stimuli was tested in Experiments 1 and 2. The weakening of a pre-change representation was not observed under correct detection. The repetition priming effect was observed for a pre-change object and the magnitude was equivalent to the effect for a post-change object. Under change blindness, repetition priming for a pre-change representation was observed when detection did not require report of location in Experiment 1 and was not observed when location was required to be reported in Experiment 2. The results of Experiment 3 showed that a pre-change representation was recognized at a higher rate under correct detection than under change blindness, reflecting a stronger rather than a weaker pre-change representation in the former context.
我们研究了在正确的变化检测情况下，变化前的表征是否会被抑制或削弱。在三个实验中，快速呈现了两组各包含六个物体的阵列用于变化检测。检测之后，在实验1和实验2中对退化刺激的知觉识别进行了测试。在正确检测的情况下未观察到变化前表征的削弱。对于变化前的物体观察到了重复启动效应，其大小与变化后的物体的效应相当。在变化盲视的情况下，在实验1中，当检测不需要报告位置时，观察到了对变化前表征的重复启动效应；而在实验2中，当需要报告位置时，则未观察到该效应。实验3的结果表明，在正确检测的情况下，变化前的表征被识别的概率高于变化盲视的情况，这反映出在前一种情况下变化前的表征更强而非更弱。
