VISUAL-ATTENTION TO SURFACES IN 3-DIMENSIONAL SPACE
VISUAL-ATTENTION TO SURFACES IN 3-DIMENSIONAL SPACE
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DOI：
10.1073/pnas.92.24.11155
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发表时间：
1995-11-21
影响因子：
11.1
通讯作者：
NAKAYAMA, K
中科院分区：
文献类型：
--
作者：
HE, ZJ;NAKAYAMA, K
虽然注意力在视觉中起着重要的作用，但它在第三维度的空间部署和传播还没有得到很好的理解。在视觉搜索实验中，我们表明，我们不能很容易地集中注意力在isodepth轨迹，除非它们是一个良好的表面与局部共面元素的一部分。然而，我们可以很容易地将注意力有选择地分散到形状良好的表面上，这些表面跨越了极端的立体深度范围。在线索实验中，我们表明，这种注意力的传播是，在某种程度上，强制性的。当目标和干扰物共面或位于共同的后退立体平面上时，注意选择性降低。我们的结论是，注意力不能有效地分配到任意的深度和范围的空间，但链接到感知表面，并自动传播。
Although attention plays a significant role in vision, its spatial deployment and spread in the third dimension is not well understood. In visual search experiments we show that we cannot easily focus attention across isodepth loci unless they are part of a well-formed surface with locally coplanar elements. Yet we can easily spread our attention selectively across well-formed surfaces that span an extreme range of stereoscopic depths. In cueing experiments, we show that this spread of attention is, in part, obligatory. Attentional selectivity is reduced when targets and distracters are coplanar with or rest on a common receding stereoscopic plane. We conclude that attention cannot be efficiently allocated to arbitrary depths and extents in space but is linked to and spreads automatically across perceived surfaces.