Effect of Stimulus Regularities on Eye Movement Characteristics

被引:0
作者
Genova, Bilyana [1 ]
Bocheva, Nadejda [1 ]
Hristov, Ivan [1 ]
机构
[1] Bulgarian Acad Sci, Inst Neurobiol, Sofia 1113, Bulgaria
来源
APPLIED SCIENCES-BASEL | 2024年 / 14卷 / 21期
关键词
eye movements; fixation duration; saccade amplitude; saccade number; gaze number; learning; memory; ATTENTION;
D O I
10.3390/app142110055
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Humans have the unique ability to discern spatial and temporal regularities in their surroundings. However, the effect of learning these regularities on eye movement characteristics has not been studied enough. In the present study, we investigated the effect of the frequency of occurrence and the presence of common chunks in visual images on eye movement characteristics like the fixation duration, saccade amplitude and number, and gaze number across sequential experimental epochs. The participants had to discriminate the patterns presented in pairs as the same or different. The order of pairs was repeated six times. Our results show an increase in fixation duration and a decrease in saccade amplitude in the sequential epochs, suggesting a transition from ambient to focal information processing as participants acquire knowledge. This transition indicates deeper cognitive engagement and extended analysis of the stimulus information. Interestingly, contrary to our expectations, the saccade number increased, and the gaze number decreased. These unexpected results might imply a reduction in the memory load and a narrowing of attentional focus when the relevant stimulus characteristics are already determined.
引用
收藏
页数:19
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