Using eye saccades to assess the selectivity of search movements
Using eye saccades to assess the selectivity of search movements
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DOI：
10.1016/0042-6989(95)00300-2
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发表时间：
1996-07-01
期刊：
影响因子：
1.8
通讯作者：
Zelinsky, GJ
中科院分区：
文献类型：
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作者：
Zelinsky, GJ
通过让受试者在相似（红色水平和绿色垂直条）和不相似干扰项（蓝色和黄色对角线）中搜索目标（红色垂直或绿色水平条）来测试搜索的选择性或指导程度。如果搜索确实是一个引导过程，那么不相似的项目不应受到与目标共享特征的元素相同的审查。针对两种干扰类型的眼球运动频率被用作这种审查的指标。分析显示相似元素和不相似元素的眼跳百分比几乎相等（分别为 55% 和 45%）。尽管表明了动眼搜索过程中选择性的一些证据，但这一发现表明，更简单和不太理想的策略可能会破坏更有效的引导搜索算法。版权所有 (C) 1996 爱思唯尔科学有限公司
The degree of selectivity or guidance underlying search was tested by having subjects search for a target (a red vertical or green horizontal bar) among Similar (red horizontal and green vertical bars) and Dissimilar distracters (blue and yellow diagonal bars). If search is indeed a guided process, then the Dissimilar items should not be given the same scrutiny as elements sharing a feature with the target. The frequency of eye movements directed to the two distracter types was used as an indicator of this scrutiny. The analysis revealed almost equal percentages of saccades to Similar and Dissimilar elements (55% and 45%, respectively). Although indicating some evidence for selectivity during oculomotor search, this finding suggests that simpler and less optimal strategies may undermine the more efficient guided search algorithm. Copyright (C) 1996 Elsevier Science Ltd.