LIMITS OF FOCUSED ATTENTION IN 3-DIMENSIONAL SPACE
LIMITS OF FOCUSED ATTENTION IN 3-DIMENSIONAL SPACE
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DOI：
10.3758/bf03211742
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发表时间：
1993-06-01
期刊：
影响因子：
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通讯作者：
KRAMER, AF
中科院分区：
文献类型：
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作者：
ANDERSEN, GJ;KRAMER, AF
本实验考察了三维空间中注意梯度的形状。受试者进行了响应兼容性的任务，他们被指示响应一个位于中心的目标，忽略侧翼干扰。不相关的干扰物被呈现在相对于目标的七个不同深度、三个不同水平间隔和三个不同垂直间隔的组合处。在通过偏振眼镜观看的立体显示中，深度是变化的。总体而言，响应兼容性效应的大小随着所有三个维度的分离增加而减小。有趣的是，响应兼容性的影响是更大的水平分离比垂直分离，是更大的交叉的差异比非交叉的差异。结果表明，椭圆形的注意力集中，在垂直方向上的梯度比在水平方向上的梯度更陡。此外，结果表明，沿着垂直方向，一个陡峭的梯度为对象位于超出关注的焦点相对于对象之间的观察者和关注的焦点。
The present experiment examined the shape of the attentional gradient in three-dimensional space. Subjects performed a response-compatibility task in which they were instructed to respond to a centrally located target and ignore flanking distractors. The irrelevant distractors were presented at combinations of seven different depths, three different horizontal separations, and three different vertical separations relative to the target. Depth was varied in a stereoscopic display viewed through polarized glasses. Overall, the size of the response-compatibility effect decreased with increased separation in all three dimensions. Interestingly, the response-compatibility effect was larger for horizontal separations than for vertical separations and was larger for crossed disparities than for uncrossed disparities. The results suggest an elliptical focus of attention, with steeper gradients in the vertical dimensions than in the horizontal dimensions. In addition, the results suggest, along the vertical dimension, a steeper gradient for objects located beyond the focus of attention relative to that for objects located between the observer and the focus of attention.