摘要
利用眼动跟踪技术,探讨W eb页面视觉搜索和浏览的视觉特征,并分析2种视觉行为对应策略的差异.实验结果发现,视觉搜索时,周边区域的注视时间和注视次数显著大于中心区域;而视觉浏览时,周边区域和中心区域没有显著差异.而且,视觉搜索时的瞳孔直径显著大于浏览时的瞳孔直径,说明视觉搜索时的心理负荷显著大于浏览时的心理负荷.结果表明,在W eb页面上视觉搜索呈现周边区域的视觉搜索策略,而对于视觉浏览更多采用无明显规律的自由随机浏览策略.这种视觉搜索与浏览策略的差异主要是来自目标驱动和心理负荷大小的影响.
This study investigates the characteristics of visual search and browsing,and analyzes the differences of those strategies on Web pages using the eye tracking.When participants search on Web pages,the peripheral area is significantly higher than the central area on fixation duration and fixation count;when participants brows information on Web pages,there is no significant difference between the peripheral area and the central area on fixation duration and fixation count.Visual search is significantly larger than browsing on the average pupil diameter,which shows that the mental load on visual search is significantly greater than that on browsing.Results show that the visual search strategy pays more attention to the peripheral area than the central area;however,the visual browsing strategy freely run their eyes over the peripheral area and the central area in equality.The differences between the visual search and the browsing strategies are mainly due to the goal-driven and the mental load.
出处
《北京工业大学学报》
EI
CAS
CSCD
北大核心
2011年第5期773-779,共7页
Journal of Beijing University of Technology
基金
国家自然科学基金资助项目(60775039
60673015)
