Human Visual and Auditory Information. Quantitatively Measuring Visual Attention by Analyzing Microsaccades.
Human Visual and Auditory Information. Quantitatively Measuring Visual Attention by Analyzing Microsaccades.
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人类视觉和听觉信息。
DOI：
10.3169/itej.52.571
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发表时间：
1998
期刊：
影响因子：
--
通讯作者：
S. Usui
中科院分区：
文献类型：
--
作者：
T. Kohama;Ken Shinkai;S. Usui
为了评价视觉注意（VA）对人类不自主微小眼动（MEM）的影响，我们分析了以下三种实验条件下的微跳（MSC）：1）VA聚焦于中心凹物体，2）VA分散于视旁视野，3）VA聚焦于其中一个视旁物体。结果表明，视觉不聚焦于中心凹目标，MSC的频率和振幅增加，注视的分散性增宽。2）和3）的结果表明，MSC的频率在2）中更大，MSC的平均振幅在两种情况下相似。当VA未聚焦时，MSC更频繁地出现，并且当VA聚焦在中心凹对象上时，MSC的幅度减小。这些结果表明，MEM受VA的影响，MSC可以作为一个指标的注意状态。根据MEM特性分析，可以确定VA是否集中。
To evaluate the effects of visual attention (VA) on human involuntary miniature eye movements (MEM), we analyzed the microsaccades (MSC), which are components of MEM, under the following three experimental conditions : 1) VA was focused on the foveal object, 2) VA was dispersed in the parafoveal visual field, and 3) VA was focused on one of the parafoveal objects. The results showed that the VA was not focused on the foveal object, the frequency and amplitude of the MSC increased, and the scatter of fixation widened. The results from 2) and 3) showed that the frequency of the MSC was grater in 2) and the mean amplitude of the MSC was similar for both conditions. When VA is not focused, the MSC occur more frequently, and when VA is focused on the foveal object, the amplitude of the MSC reduces. These results suggest that MEM are influenced by VA, and MSC may be used as an indicator of the attentional state. It will be possible to establish whether VA is focused or not on the basis of the analysis of MEM characteristics.