School of Psychology, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841, Korea.
Atten Percept Psychophys. 2024 Jul;86(5):1-27. doi: 10.3758/s13414-024-02905-7. Epub 2024 Jun 5.
The present study investigated the effect of object representation on attentional priority regarding distractor inhibition and target search processes while the statistical regularities of singleton distractor location were biased. A color singleton distractor appeared more frequently at one of six stimulus locations, called the 'high-probability location,' to induce location-based suppression. Critically, three objects were presented, each of which paired two adjacent stimuli in a target display by adding background contours (Experiment 1) or using perceptual grouping (Experiments 2 and 3). The results revealed that attention capture by singleton distractors was hardly modulated by objects. In contrast, target selection was impeded at the location in the object containing the high-probability location compared to an equidistant location in a different object. This object-based suppression in target selection was evident when object-related features were parts of task-relevant features. These findings suggest that task-irrelevant objects modulate attentional suppression. Moreover, different features are engaged in determining attentional priority for distractor inhibition and target search processes.
本研究调查了在偏向于 singleton 分心物位置的统计规律的情况下，物体表征对分心物抑制和目标搜索过程的注意优先权的影响。在一种颜色的 singleton 分心物更频繁地出现在六个刺激位置之一的“高概率位置”，以引起基于位置的抑制。关键的是，呈现了三个物体，每个物体通过添加背景轮廓（实验 1）或使用知觉分组（实验 2 和 3），将目标显示中的两个相邻刺激配对。结果表明，singleton 分心物的注意捕获几乎不受物体的调节。相比之下，与不同物体中的等距位置相比，在包含高概率位置的物体中的位置上，目标选择受到阻碍。当与任务相关的特征是任务相关特征的一部分时，这种基于物体的目标选择抑制就会显现出来。这些发现表明，任务无关的物体调节了注意力抑制。此外，不同的特征被用于确定分心物抑制和目标搜索过程的注意优先权。
