中文摘要：

为了定量研究网页信息过载对视觉搜索的影响，利用眼动技术调查研究了用户在网页信息过载下的视觉搜索行为．实验结果表明：无论网页信息是否过载，用户视觉搜索都是以图为导向的，并且都呈现周边特性；网页信息过载显著延长了视觉搜索时间，造成获取信息的时间成本增加或时间损失；网页信息过载时，用户更倾向于采用减少平行加工、增加系列加工的信息加工方式来提高视觉搜索效率。

英文摘要：

Previous studies have demonstrated that visual search on Web pages is impacted by many factors, such as information form and Webpage layout. However, quantitative research about the impact of information overload for visual search on Web pages has not been reported yet. This study quantitatively investigates users＇ visual search behavior under information overload on Web pages usingeye-tracking. Results suggest that 1 ） under information overload or not, users＇ visual search strategies are the same that is paying more attention to pictures and peripheral areas; 2 ） Information overload significantly increases the visual search time, which means the decrease of visual search efficiency; and 3） Under information overload, users are more likely to decrease parallel processing and increase serial processing to improve the visual search efficiency.