Spatial attention and object-based attention: a comparison within a single task
Spatial attention and object-based attention: a comparison within a single task
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DOI：
10.1016/j.visres.2003.08.013
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发表时间：
2004-01-01
期刊：
影响因子：
1.8
通讯作者：
Blanco, MJ
中科院分区：
文献类型：
--
作者：
Soto, D;Blanco, MJ
现在有很多实验证据支持这样一种观点，即视觉注意力至少可以通过两种方式进行部署：一种是基于空间的，另一种是基于物体的。然而，目前尚不清楚基于空间和物体的注意力是否在视觉系统中以综合的方式工作。在本文中，我们提出了两个实验，其中我们在提示范式中比较了注意力的两个组成部分。参与者必须辨别出出现在四个不同颜色的移动圆圈中的一个圆圈内的线的方向。出现在四个圆圈之一附近的提示表示目标刺激可能出现的位置或圆圈。空间和对象线索效应：反应更快，当目标出现在precued位置或precued对象内。此外，物体线索效应只发生在空间无效的线索，而不是空间有效的线索。这些结果表明，对象和空间为基础的注意力相互作用，与选择的位置是主要的对象为基础的选择。(C)2003 Elsevier Ltd.保留所有权利。
There is now much experimental evidence supporting the idea that visual attention can be deployed in at least two ways: one space-based and other object-based. However, it is not clear whether space- and object-based attention work in an integrated way within the visual system. In this article, we present two experiments in which we compare both components of attention within a cueing paradigm. Participants had to discriminate the orientation of a line that appeared within one of four moving circles, differing in colour. A cue appearing close to one of the four circles indicated the location or circle where the target stimulus was likely to appear. Spatial and object cueing effects were observed: responses were faster when target appeared either at the precued location or within the precued object. In addition, the object-cueing effect occurred only when the cue was spatially invalid and not when it was spatially valid. These results suggest that object- and space-based attention interact, with selection by location being primary over object-based selection. (C) 2003 Elsevier Ltd. All rights reserved.