Divided attention and visual search for simple versus complex features
Divided attention and visual search for simple versus complex features
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DOI：
10.1016/s0042-6989(03)00339-0
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发表时间：
2003-09-01
期刊：
影响因子：
1.8
通讯作者：
Michel, RK
中科院分区：
文献类型：
--
作者：
Davis, ET;Shikano, T;Michel, RK
在什么样的搜索条件下，注意力会影响感知过程，导致容量限制，而不是影响嘈杂的决策过程？并行或串行处理是否会导致容量限制？为了解决这些问题，我们改变了刺激的复杂性，设置大小，以及是否干扰目标的镜像。目标检测和定位产生了类似的结果模式。容量限制只发生在对象内连接搜索中使用的复杂刺激。并行处理，而不是串行处理，可能导致这些容量限制。此外，尽管镜像对称对早期的视觉处理产生了不利影响，但它并没有对注意力提出额外的要求。(C)2003 Elsevier Ltd.保留所有权利。
Under what search conditions does attention affect perceptual processes, resulting in capacity limitations, rather than affecting noisy decision-making processes? Does parallel or serial processing cause the capacity limitations? To address these issues, we varied stimulus complexity, set size, and whether distractors were mirror images of the target. Both target detection and localization produced similar patterns of results. Capacity limitations only occurred for complex stimuli used in within-object conjunction searches. Parallel processing, rather than serial processing, probably caused these capacity limitations. Moreover, although mirror-image symmetry adversely affected early visual processing, it did not place additional demands on attention. (C) 2003 Elsevier Ltd. All rights reserved.