Saccadic search performance: the effect of element spacing
Saccadic search performance: the effect of element spacing
复制标题
扫视搜索性能：元素间距的影响
DOI：
10.1007/s00221-005-0032-z
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发表时间：
2005
影响因子：
2
通讯作者：
I. Hooge
中科院分区：
文献类型：
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作者：
Björn N. S. Vlaskamp;E. Over;I. Hooge
在扫视搜索任务中，我们研究了元素之间的间距是否会影响搜索性能。由于它已在文献中提出，元素间距可以影响眼球运动策略在几个方面，它对每个元素的搜索时间的影响是很难预测的。在第一个实验中，我们改变了元素间距（元素之间的距离为3.4°-7.1°）和目标-干扰项相似性。正如预期的那样，每个元素的搜索时间增加与目标干扰相似。减小元素间距减少了每个元素的搜索时间。然而，与不同目标-干扰物相似性的影响相比，这种影响出奇地小。在第二个实验中，我们详细阐述了这一发现，并进一步减少了元件间距（0.8°至3.2°）。在这里，我们没有发现从3.2°到1.5°的元素间距对每个元素的搜索时间的影响。只有在距离小于1.5°时，每个单元的搜索时间才随单元间距的减小而增加。为了解释显着的发现，每个元素的搜索时间不受影响，这样一个广泛的元素间距，我们建议，不管间距拥挤保持固定或多或少恒定的元素处理的数量。
In a saccadic search task, we investigated whether spacing between elements affects search performance. Since it has been suggested in the literature that element spacing can affect the eye movement strategy in several ways, its effects on search time per element are hard to predict. In the first experiment, we varied the element spacing (3.4°–7.1° distance between elements) and target–distracter similarity. As expected, search time per element increased with target–distracter similarity. Decreasing element spacing decreased the search time per element. However, this effect was surprisingly small in comparison to the effect of varying target–distracter similarity. In a second experiment, we elaborated on this finding and decreased element spacing even further (between 0.8° and 3.2°). Here, we did not find an effect on search time per element for element spacings from 3.2° to spacings as small as 1.5°. It was only at distances smaller than 1.5° that search time per element increased with decreasing element spacing. In order to explain the remarkable finding that search time per element was not affected for such a wide range of element spacings, we propose that irrespective of the spacing crowding kept the number of elements processed per fixation more or less constant.
影响因子：
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作者：
KOOI, FL;TOET, A;LEVI, DM
通讯作者：
LEVI, DM