Eye gaze direction shows a positive serial dependency
Eye gaze direction shows a positive serial dependency
复制标题
DOI：
10.1167/18.4.11
复制
发表时间：
2018-04-01
影响因子：
1.8
通讯作者：
Clifford, Colin
中科院分区：
文献类型：
--
作者：
Alais, David;Kong, Garry;Clifford, Colin
几个研究小组最近的工作表明，在给定的时刻，人类观察者对各种视觉属性的感知偏向于最近看到的东西。这种正序列依赖性是一种时间平均，它利用视觉场景中的短期相关性来减少噪声和稳定感知。在这里，我们测试串行依赖性的头部和眼睛的方向感知使用一个简单的再现方法来测量感知的头部/眼睛的凝视方向在快速序列的简要介绍的面部刺激。在一系列的三个实验中，我们的研究结果表明，感知的眼睛注视方向显示出积极的串行依赖性的眼睛方向的变化，沿着垂直和水平的维度，虽然更强烈的水平凝视转移。相比之下，我们发现头部位置的水平变化根本没有序列依赖性。这些发现表明，一个感知稳定的“连续性场”作用于眼睛的位置众所周知，在短时间内变化很大，而来自头部位置的更固有的稳定信号则没有。
Recent work from several groups has shown that perception of various visual attributes in human observers at a given moment is biased towards what was recently seen. This positive serial dependency is a kind of temporal averaging which exploits short-term correlations in visual scenes to reduce noise and stabilize perception. Here we test for serial dependencies in perception of head and eye direction using a simple reproduction method to measure perceived head/eye gaze direction in rapid sequences of briefly presented face stimuli. In a series of three experiments, our results reveal that perceived eye gaze direction shows a positive serial dependency for changes in eye direction, along both the vertical and horizontal dimensions, although more strongly for horizontal gaze shifts. By contrast, we found no serial dependency at all for horizontal changes in head position. These findings show that a perception-stabilizing 'continuity field' operates on eye position-well known to be quite variable over short timescales-while the more inherently stable signal from head position does not.