Proulx Michael J, Egeth Howard E
Johns Hopkins University, Baltimore, Maryland, USA.
Psychon Bull Rev. 2006 Jun;13(3):524-9. doi: 10.3758/bf03193880.
The literature contains conflicting results concerning whether an irrelevant featural singleton (an item unique with respect to a feature such as color or brightness) can control attention in a stimulus-driven manner. The present study explores whether target-nontarget similarity influences stimulus-driven shifts of attention to a distractor. An experiment evaluated whether manipulating target-nontarget similarity by varying orientation would modulate distraction by an irrelevant feature (a bright singleton). We found that increasing target-nontarget similarity resulted in a decreased impact of a uniquely bright object on visual search. This method of manipulating the target-nontarget similarity independent of the salience of a distracting feature suggests that the extent to which visual attention is stimulus-driven depends on the target-nontarget similarity.
关于一个不相关的特征单一物（在颜色或亮度等特征方面独特的项目）是否能以刺激驱动的方式控制注意力，文献中存在相互矛盾的结果。本研究探讨目标与非目标的相似性是否会影响注意力向干扰物的刺激驱动转移。一项实验评估了通过改变方向来操纵目标与非目标的相似性是否会调节无关特征（一个明亮的单一物）造成的干扰。我们发现，增加目标与非目标的相似性会导致独特明亮物体对视觉搜索的影响减小。这种独立于干扰特征显著性来操纵目标与非目标相似性的方法表明，视觉注意力受刺激驱动的程度取决于目标与非目标的相似性。
