The role of visual attention in multiple object tracking: evidence from ERPs.
The role of visual attention in multiple object tracking: evidence from ERPs.
复制标题
DOI：
10.3758/app.72.1.33
复制
发表时间：
2010-01
期刊：
影响因子：
--
通讯作者：
Hoffman JE
中科院分区：
文献类型：
--
作者：
Doran MM;Hoffman JE
我们研究了视觉注意在多目标跟踪（MOT）任务中的作用，通过测量事件相关电位（ERP）的N1分量的振幅来探测目标，干扰物或空背景区域上的闪光。我们发现了视觉注意增强目标和抑制干扰的证据（实验1和3）。然而，我们也发现，当跟踪负载是轻的（两个目标和两个干扰），准确的跟踪可以进行没有任何明显的贡献，从视觉注意系统（实验2）。我们的研究结果表明，注意力的选择在MOT灵活地确定任务的需求，以及跟踪负载和视觉注意可能并不总是必要的准确跟踪。
We examined the role of visual attention in the multiple object tracking (MOT) task by measuring the amplitude of the N1 component of the event-related potential (ERP) to probe flashes presented on targets, distractors, or empty background areas. We found evidence that visual attention enhances targets and suppresses distractors (Experiment 1 & 3). However, we also found that when tracking load was light (two targets and two distractors), accurate tracking could be carried out without any apparent contribution from the visual attention system (Experiment 2). Our results suggest that attentional selection during MOT is flexibly determined by task demands as well as tracking load and that visual attention may not always be necessary for accurate tracking.