Foulsham Tom, Underwood Geoffrey
University of Nottingham, University Park, Nottingham, UK.
Q J Exp Psychol (Hove). 2009 Jun;62(6):1088-98. doi: 10.1080/17470210802602433. Epub 2009 Jan 10.
While visual saliency may sometimes capture attention, the guidance of eye movements in search is often dominated by knowledge of the target. How is the search for an object influenced by the saliency of an adjacent distractor? Participants searched for a target amongst an array of objects, with distractor saliency having an effect on response time and on the speed at which targets were found. Saliency did not predict the order in which objects in target-absent trials were fixated. The within-target landing position was distributed around a modal position close to the centre of the object. Saliency did not affect this position, the latency of the initial saccade, or the likelihood of the distractor being fixated, suggesting that saliency affects the allocation of covert attention and not just eye movements.
虽然视觉显著性有时会吸引注意力，但在搜索过程中，眼动的引导通常受目标知识的主导。相邻干扰项的显著性如何影响对物体的搜索？参与者在一系列物体中搜索目标，干扰项的显著性会对反应时间以及找到目标的速度产生影响。显著性并不能预测无目标试验中物体被注视的顺序。目标内的着陆位置分布在靠近物体中心的一个模态位置周围。显著性不会影响这个位置、初始扫视的潜伏期或干扰项被注视的可能性，这表明显著性影响的是隐蔽注意力的分配，而不仅仅是眼动。
