显示移动速度对动态搜索绩效的影响研究

为了探究动态视觉搜索任务中显示移动速度对搜索绩效的影响,设计了动态视觉搜索实验。通过E-prime软件测试8个显示移动速度下的搜索绩效,并对反应时间进行配对t检验。实验结果表明:当显示移动速度不高于4°/s时,动态搜索绩效与静态搜索绩效没有显著差异;当显示移动速度不低于6°/s时,二者差异显著,且其差异随显示移动速度的增大而增大。此外,当显示移动速度不高于8°/s时,不同显示移动速度之间的搜索绩效差异性与速度区间的宽度Δω有关,Δω越大,搜索绩效差异越显著;当显示移动速度高于8°/s时,不同显示移动速度之间的动态搜索绩效均存在显著差异。动态视觉搜索任务的平均反应时间和误检率随着显示移动速度的增大而增大。研究结果说明显示移动速度对动态搜索绩效的影响显著,可为动态界面显示移动速度的设置提供一定参考。

Research on the effect of display movement speed on dynamic search performance

To explore the effect of display movement speed on search performance in dynamic visual search tasks, a dynamic visual search experiment was designed to test search performance at the 8 display movement speeds of 0, 2, 4, 6, 8, 12, 16, 32°/s through E-prime software, and paired t-test for reaction time. The experiment result showed that when the display movement speed was not higher than 4°/s, there was no significant difference between dynamic search performance and static search performance, but when not less than 6°/s, the difference was significant, and the difference increased with the increase of the display movement speed. In addition, when the display movement speed was not higher than 8°/s, search performance differences between the different display movement speeds was related to the width Δω of the velocity interval. The larger the Δω, the more significant the difference in search performance. When the display movement speed was higher than 8°/s, there was a significant difference in search performance between different display movement speeds. The average reaction time and error rate in dynamic visual search tasks increased with the increase of the display movement speed. The research results showed that the display movement speed had a significant effect on the search performance, and could provide some references for display movement speed setting of the dynamic interface.