Perceiving spatial relations via attentional tracking and shifting.
Perceiving spatial relations via attentional tracking and shifting.
复制标题
通过注意力跟踪和转移来感知空间关系。
DOI：
10.1016/j.cub.2011.05.031
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发表时间：
2011
期刊：
影响因子：
--
通讯作者：
Vaziri-Pashkam,Maryam
中科院分区：
文献类型：
--
作者：
Holcombe,AlexO;Linares,Daniel;Vaziri-Pashkam,Maryam
感知场景中哪些物体是相邻的可能需要用有限的注意力过程来选择它们。以前的结果支持这一概念[1-3]，但留下开放的过程是否同时操作几个对象或逐个进行。随着彩色圆盘的阵列一起移动，我们首先测试了以超过速度限制的速度移动圆盘对注意力选择的影响[4]。在这样的高速下，参与者可以识别出哪些颜色存在，并确定相同的阵列是否对齐或偏移一个圆盘。然而，他们不能理解数组中哪些颜色是相邻的，这表明这种判断需要注意力选择。如果选择连续地操作以确定哪些颜色是相邻的，那么在一个盘的颜色被识别之后，注意力必须转移到相邻的盘。作为运动的结果，注意力可能偶尔会错过目标，而落在尾随的圆盘上。我们提示注意力首先选择一对光盘中的一个或另一个，并发现预测的错误模式。感知这些空间关系显然需要逐个选择和处理对象，并且只有在低对象速度下才有可能。
Perceiving which of a scene's objects are adjacent may require selecting them with a limited-capacity attentional process. Previous results support this notion [1–3] but leave open whether the process operates simultaneously on several objects or proceeds one by one. With arrays of colored discs moving together, we first tested the effect of moving the discs faster than the speed limit for following them with attentional selection [4]. At these high speeds, participants could identify which colors were present and determine whether identical arrays were aligned or offset by one disc. They could not, however, apprehend which colors in the arrays were adjacent, indicating that attentional selection is required for this judgment. If selection operates serially to determine which colors are neighbors, then after the color of one disc is identified, attention must shift to the adjacent disc. As a result of the motion, attention might occasionally miss its target and land on the trailing disc. We cued attention to first select one or the other of a pair of discs and found the pattern of errors predicted. Perceiving these spatial relationships evidently requires selecting and processing objects one by one and is only possible at low object speeds.