How are eye fixation durations controlled during scene viewing? Further evidence from a scene onset delay paradigm
How are eye fixation durations controlled during scene viewing? Further evidence from a scene onset delay paradigm
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DOI：
10.1080/13506280802685552
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发表时间：
2009-01-01
期刊：
影响因子：
2
通讯作者：
Smith, Tim J.
中科院分区：
文献类型：
--
作者：
Henderson, John M.;Smith, Tim J.
最近关于场景观看期间的眼动的研究集中在眼睛注视的地方。但是眼睛注视的持续时间也不同。在这里，我们调查是否固定持续时间在现场观看的直接和即时的控制下，当前的视觉输入。在两个场景记忆和一个视觉搜索实验中，场景被从视图中删除在关键的固定预定的延迟，然后恢复延迟。实验1比较了填充（图案掩模）和未填充（灰场）延迟。实验2比较了随机阻塞延迟。实验3将结果扩展到视觉搜索任务。结果表明，在现场观看的固定时间包括两个固定的人口。一个种群在整个延迟期间保持相对恒定，第二个种群随着场景开始延迟而增加。结果是一致的混合眼动控制模型，采用了自主控制机制与过程监控。结果表明，一个完整的凝视控制模型将不得不考虑固定位置和固定时间。
Recent research on eye movements during scene viewing has focused on where the eyes fixate. But eye fixations also differ in their durations. Here we investigated whether fixation durations in scene viewing are under the direct and immediate control of the current visual input. In two scene memorization and one visual search experiments, the scene was removed from view during critical fixations for a predetermined delay, and then restored following the delay. Experiment 1 compared filled (pattern mask) and unfilled (grey field) delays. Experiment 2 compared random to blocked delays. Experiment 3 extended the results to a visual search task. The results demonstrate that fixation durations in scene viewing comprise two fixation populations. One population remains relatively constant across delay, and the second population increases with scene onset delay. The results are consistent with a mixed eye movement control model that incorporates an autonomous control mechanism with process monitoring. The results suggest that a complete gaze control model will have to account for both fixation location and fixation duration.