ILLUSORY CONJUNCTIONS INSIDE AND OUTSIDE THE FOCUS OF ATTENTION
ILLUSORY CONJUNCTIONS INSIDE AND OUTSIDE THE FOCUS OF ATTENTION
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DOI：
10.1037/0096-1523.15.4.650
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发表时间：
1989-11-01
影响因子：
2.1
通讯作者：
IVRY, R
中科院分区：
文献类型：
--
作者：
COHEN, A;IVRY, R
本文解决了视觉场景首先被解析为视觉特征这一发现（例如，W. Prinzmetal 等人；参见记录 1986-26854-001）所产生的两个问题：(a) 在识别过程中物体位置信息的积累；(b) 视觉特征绑定的机制。前 2 个实验表明，当 2 个彩色字母出现在最初关注焦点之外时，只有当字母之间的距离小于 1 时，才会在一个字母的颜色和另一个字母的形状之间形成虚幻的连接。大于 2 的分离导致合取错误比偶然预期的要少。实验 3 和 4 表明，在注意力的传播范围内，无论两个字母之间的距离如何，它们之间都会出现虚幻的联系。此外，这些实验表明，注意力的广度可以像聚光灯一样扩大或缩小。结果表明，注意力焦点内的特征是通过可扩展的焦点注意力机制来整合的，该机制将出现在其焦点内的所有特征结合起来。注意力焦点之外的视觉特征可以在集成之前与粗略位置信息一起注册。或者，注意力快速且不精确地转移到外围可能会导致相邻刺激之间出现虚幻的结合。（PsycINFO 数据库记录 (c) 2016 APA，保留所有权利）
This article addresses 2 questions that arise from the finding (eg, W. Prinzmetal et al; see record 1986-26854-001) that visual scenes are first parsed into visual features:(a) the accumulation of location information about objects during their recognition and (b) the mechanism for the binding of the visual features. The first 2 experiments demonstrated that when 2 colored letters were presented outside the initial focus of attention, illusory conjunctions between the color of one letter and the shape of the other were formed only if the letters were less than 1 apart. Separation greater than 2 resulted in fewer conjunction errors than expected by chance. Experiments 3 and 4 showed that inside the spread of attention, illusory connections between the 2 letters can occur regardless of the distance between them. In addition, these experiments demonstrated that the span of attention can expand or shrink like a spotlight. The results suggest that features inside the focus of attention are integrated by an expandable focal attention mechanism that conjoins all features that appear inside its focus. Visual features outside the focus of attention may be registered with coarse location information prior to their integration. Alternatively, a quick and imprecise shift of attention to the periphery may lead to illusory conjunctions among adjacent stimuli.(PsycINFO Database Record (c) 2016 APA, all rights reserved)