Attention modulates perception of visual space.
Attention modulates perception of visual space.
复制标题
注意力调节视觉空间的感知。
DOI：
10.1038/s41562-016-0004
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发表时间：
2016
影响因子：
29.9
通讯作者：
He,ZijiangJ
中科院分区：
文献类型：
--
作者：
Zhou,Liu;Deng,Chenglong;Ooi,TengLeng;He,ZijiangJ
注意力很容易促进对物体的检测和辨别，但它是否有助于形成包含物体的巨大视觉空间以及动作在哪里实施，目前尚不清楚。考虑到我们睁开眼睛就能毫不费力地感知三维(3D)场景，传统观点认为并非如此。在这里，我们展示了相反的证据。在实验1中，观察者判断一个短暂呈现的目标的位置，该目标放置在有纹理的地面或天花板表面上。如果地面是可见的，并且观察者将注意力引向较低的视野，而不是较高的视野，则判断的位置对地面上的目标更准确。这表明，注意促进了参照地面的空间感知。实验2表明，当观察者将注意力集中到较低的视野时，在地面和天花板都存在的情况下，对空中目标的判断位置更准确；这表明注意效应延伸到地面以上的视觉空间。这些发现强调了注意力在空间中锚定视觉定向的作用，这可以说是一种原始事件，可以增强一个人与视觉空间内的物体和表面布局互动的能力。注意的效果取决于地面是否可见，这一事实表明，我们的陆地视觉系统最好是由其生态位来服务。
Attention readily facilitates the detection and discrimination of objects, but it is not known whether it helps to form the vast volume of visual space that contains the objects and where actions are implemented. Conventional wisdom suggests not, given the effortless ease with which we perceive three-dimensional (3D) scenes on opening our eyes. Here, we show evidence to the contrary. In Experiment 1, the observer judged the location of a briefly presented target, placed either on the textured ground or ceiling surface. Judged location was more accurate for a target on the ground, provided that the ground was visible and that the observer directed attention to the lower visual field, not the upper field. This reveals that attention facilitates space perception with reference to the ground. Experiment 2 showed that judged location of a target in mid-air, with both ground and ceiling surfaces present, was more accurate when the observer directed their attention to the lower visual field; this indicates that the attention effect extends to visual space above the ground. These findings underscore the role of attention in anchoring visual orientation in space, which is arguably a primal event that enhances one’s ability to interact with objects and surface layouts within the visual space. The fact that the effect of attention was contingent on the ground being visible suggests that our terrestrial visual system is best served by its ecological niche.