Du Feng, Qi Yue, Li Xingshan, Zhang Kan
Key Laboratory of Behavioral Science, Institute of Psychology, Chinese Academy of Sciences, Beijing, China.
PLoS One. 2013 Nov 19;8(11):e80678. doi: 10.1371/journal.pone.0080678. eCollection 2013.
The present study showed that there are two distinctive processes underlying oculomotor capture by abrupt onset. When a visual mask between the cue and the target eliminates the unique luminance transient of an onset, the onset still attracts attention in a top-down fashion. This memory-based prioritization of onset is voluntarily controlled by the knowledge of target location. But when there is no visual mask between the cue and the target, the onset captures attention mainly in a bottom-up manner. This transient-driven capture of onset is involuntary because it occurs even when the onset is completely irrelevant to the target location. In addition, the present study demonstrated distinctive temporal characteristics for these two processes. The involuntary capture driven by luminance transients is rapid and brief, whereas the memory-based voluntary prioritization of onset is more sluggish and long-lived.
本研究表明，突然 onset 引起的眼球运动捕捉有两个不同的过程。当线索和目标之间的视觉掩蔽消除了 onset 的独特亮度瞬变时，onset 仍然以自上而下的方式吸引注意力。这种基于记忆的 onset 优先级由目标位置的知识自愿控制。但是当线索和目标之间没有视觉掩蔽时，onset 主要以自下而上的方式捕捉注意力。这种由瞬变驱动的 onset 捕捉是不由自主的，因为即使 onset 与目标位置完全无关时也会发生。此外，本研究证明了这两个过程具有独特的时间特征。由亮度瞬变驱动的非自愿捕捉快速且短暂，而基于记忆的自愿 onset 优先级则较为缓慢且持久。
