Looking at the center of the targets helps multiple object tracking.
Looking at the center of the targets helps multiple object tracking.
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DOI：
10.1167/10.4.19
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发表时间：
2010-04-28
影响因子：
1.8
通讯作者：
Seiffert AE
中科院分区：
文献类型：
--
作者：
Fehd HM;Seiffert AE
将我们的视线移到感兴趣的地方的能力促进了日常生活中的互动。当多个地点同时感兴趣时，参与者在哪里直接凝视？我们以前证明，在多目标跟踪(MOT)任务中，当在干扰项中跟踪多个移动目标时，参与者主要关注目标之间的中心点。这种向中心看的策略与看目标的策略形成了对比，在目标看策略中，参与者会从一个目标跳到另一个目标。在这里，我们调查了哪些因素影响了中心注视的使用以及它的有效性。通过降低对象速度，我们确定了向中心看并不是为了避免跟踪过程中代价高昂的眼球运动。对象大小的减小表明，跟踪需要外围可见性，但中心视线一直持续到外围可见性的极限。进一步的分析发现，参与者经常同时进行目标注视和中心注视，方法是将目光从中心切换到目标，然后再切换回来。直接比较参与者在包括或不包括中心注视和目标注视时的表现，发现中心注视有助于跟踪性能。这些结果表明，观察与跟踪多个目标的过程直接相关的中心是有价值的。
The ability to move our gaze to locations of interest facilitates interactions in everyday life. Where do participants direct gaze when multiple locations are of interest simultaneously? We previously demonstrated that, when tracking several moving targets amidst distractors in a multiple object tracking (MOT) task, participants primarily looked at a central point in between the targets. This strategy of center-looking is in contrast to a target-looking strategy where participants would saccade from target to target. Here we investigated what factors influence the use of center-looking as well as its effectiveness. By decreasing object speed, we determined that center-looking is not a result of avoiding costly eye movements during tracking. Decreasing object size showed that peripheral visibility is necessary for tracking, but that center-looking continues up to the limits of peripheral visibility. Further analysis revealed that participants often engaged in both target-looking and center-looking by switching gaze from the center to targets and back again. Directly comparing participants’ performance when they either did or did not include center-looking along with target-looking revealed that center-looking facilitates tracking performance. These results suggest that there is value in looking at the center that relates directly to the process of tracking multiple objects.
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影响因子：
1.8
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通讯作者：
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