Washington University, St. Louis, MO 63130, USA.
Brain Cogn. 2010 Mar;72(2):310-6. doi: 10.1016/j.bandc.2009.10.006. Epub 2009 Nov 12.
The present study examined the spatial distribution of involuntary attentional capture over the two visual hemi-fields. A new experiment, and an analysis of three previous experiments showed that distractors in the left visual field that matched a sought-for target in color produced a much larger capture effect than identical distractors in the right visual field, revealing a visual field asymmetry in color-based contingent capture. On the other hand, abrupt onsets in the two hemi-fields did not differ in the magnitude of their capture effect, indicating a symmetric distribution of onset capture. The different spatial patterns for contingent capture and onset capture reveal differences between the two types of attentional capture, possibly indicating differences in the underlying brain mechanisms.
本研究考察了非自愿注意捕获在两个视场中的空间分布。一项新实验和对三个先前实验的分析表明，在颜色上与目标匹配的左视野中的分心物比右视野中相同的分心物产生了更大的捕获效应，揭示了基于颜色的随附捕获中的视场不对称性。另一方面，两个视场中的突然出现的起始在捕获效应的大小上没有差异，表明起始捕获的分布是对称的。随附捕获和起始捕获的不同空间模式揭示了两种注意力捕获之间的差异，可能表明潜在的大脑机制存在差异。
