Non-spatial sounds regulate eye movements and enhance visual search.
Non-spatial sounds regulate eye movements and enhance visual search.
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DOI：
10.1167/12.5.2
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发表时间：
2012
影响因子：
1.8
通讯作者：
Heng Zou;H. Müller;Zhuanghua Shi
中科院分区：
文献类型：
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作者：
Heng Zou;H. Müller;Zhuanghua Shi
当声音与视觉目标的颜色变化同步时，空间上无信息的声音可以增强视觉搜索，这种现象被称为“pip-and-pop”效应（货车der布尔格，Olivers，Bronkhorst，& Theeuwes，2008）。本研究探讨了这种效应与声音引起的眼球扫描行为变化的关系。结果显示，声音事件，以增加固定持续时间后，他们的发生，并减少扫视的平均数量。更具体地说，空间无信息的声音促进了眼扫描的方向远离已经扫描的显示区域不包含一个目标（实验1）和增强搜索性能，即使在目标不存在的试验（实验2）。当声音出现在目标之前100 ms或随机出现时，也观察到促进作用（实验3）。这些研究结果表明，非空间的声音引起的一般冻结效应的眼扫描行为，这种效果反过来又有利于视觉搜索性能的时间和空间扩展的信息采样。
Spatially uninformative sounds can enhance visual search when the sounds are synchronized with color changes of the visual target, a phenomenon referred to as "pip-and-pop" effect (van der Burg, Olivers, Bronkhorst, & Theeuwes, 2008). The present study investigated the relationship of this effect to changes in oculomotor scanning behavior induced by the sounds. The results revealed sound events to increase fixation durations upon their occurrence and to decrease the mean number of saccades. More specifically, spatially uninformative sounds facilitated the orientation of ocular scanning away from already scanned display regions not containing a target (Experiment 1) and enhanced search performance even on target-absent trials (Experiment 2). Facilitation was also observed when the sounds were presented 100 ms prior to the target or at random (Experiment 3). These findings suggest that non-spatial sounds cause a general freezing effect on oculomotor scanning behavior, an effect which in turn benefits visual search performance by temporally and spatially extended information sampling.