Visual search habits and the spatial structure of scenes.
Visual search habits and the spatial structure of scenes.
复制标题
DOI：
10.3758/s13414-022-02506-2
复制
发表时间：
2022-08
影响因子：
1.7
通讯作者：
Hunt, Amelia R.
中科院分区：
文献类型：
--
作者：
Clarke, Alasdair D. F.;Nowakowska, Anna;Hunt, Amelia R.
一些空间布局可能比其他的更适合我们的视觉搜索习惯。我们比较了在三种空间配置中搜索时的眼球运动。参与者寻找一个向右45°的线段。干扰物线段方向的变化决定了目标在周边视觉中的可见程度：均匀干扰物中的目标是高度可见的，而异质干扰物中的目标需要中央视觉。当搜索数组被分成同构的和异构的左右半部分时，大部分的固定被“浪费”在同构的半部分上，导致搜索时间变慢。我们将这种模式与两种新的配置进行了比较。首先，阵列被分成上下两部分。在被动观看基线条件下，我们观察到偏见，既看上半部分，也看异质区域。在主动搜索期间，这两种偏差都较弱，尽管事实上，如果异质性偏差被保留，它将导致效率的提高。在第二个实验中，或多或少的异质线段斑块分散在整个搜索空间中。这种配置允许更自然的、空间分布的扫描路径。相对于左/右配置，参与者效率更高，变化更少。结果与视觉搜索与分布式注视序列相关联的观点是一致的，视觉搜索仅受场景中不同区域目标的潜在可见性的松散指导。
Some spatial layouts may suit our visual search habits better than others. We compared eye movements during search across three spatial configurations. Participants searched for a line segment oriented 45∘ to the right. Variation in the orientation of distractor line segments determines the extent to which this target would be visible in peripheral vision: a target among homogeneous distractors is highly visible, while a target among heterogeneous distractors requires central vision. When the search array is split into homogeneous and heterogeneous left and right halves, a large proportion of fixations are “wasted” on the homogeneous half, leading to slower search times. We compared this pattern to two new configurations. In the first, the array was split into upper and lower halves. During a passive viewing baseline condition, we observed biases to look both at the top half and also at the hetergeneous region first. Both of these biases were weaker during active search, despite the fact that the heterogeneous bias would have led to improvements in efficiency if it had been retained. In the second experiment, patches of more or less heterogeneous line segments were scattered across the search space. This configuration allows for more natural, spatially distributed scanpaths. Participants were more efficient and less variable relative to the left/right configuration. The results are consistent with the idea that visual search is associated with a distributed sequence of fixations, guided only loosely by the potential visibility of the target in different regions of the scene.
登录
查看更多内容
DOI：
10.1037/0096-1523.25.1.210
发表时间：
1999-02-01
影响因子：
2.1
作者：
Henderson, JM;Weeks, PA;Hollingworth, A
通讯作者：
Hollingworth, A
影响因子：
7.8
作者：
Torralba, A;Oliva, A
通讯作者：
Oliva, A
影响因子：
2.6
作者：
Chun, MM;Jian, YH
通讯作者：
Jian, YH
影响因子：
3.5
作者：
Castelhano, Monica S.;Heaven, Chelsea
通讯作者：
Heaven, Chelsea
影响因子：
1.8
作者：
Clarke, Alasdair D. F.;Green, Patrick;Hunt, Amelia R.
通讯作者：
Hunt, Amelia R.