作业休息制度和搜索区域移动速度对搜索绩效和视觉疲劳的影响

目的本研究旨在探究不同的作业休息制度和搜索区域移动速度对动态视觉搜索任务的搜索绩效和视觉疲劳的影响。方法采用作业休息制度(3)×搜索区域移动速度(2)二因子组内设计的人因实验进行研究。被试(N=15)在不同的作业休息制度和移动速度条件下完成视觉搜索任务。测量指标包括单次任务反应时间、各个时间节点被试的闪光融合频率和主观疲劳感受评分。结果移动速度对搜索绩效和视觉疲劳主观感受有显著影响,闪光融合频率随移动速度的增加有降低的趋势。结论高移速的搜索任务比低移速的搜索任务带来的视觉疲劳程度更高,绩效更差。作业休息制度对搜索绩效、视觉疲劳主观感受有显著影响。研究结果对动态视觉搜索作业的劳动作业休息制度设计具有指导意义。

The Effect of Work/Rest Patterns and Display Movement Speed on Visual Search Performance and Visual Fatigue

Objective The study aimed to investigate the effect of work/rest patterns and display movement speed on performance and visual fatigue in dynamic visual search tasks.Methods A human factor experiment was conducted,where a two-factor within-subjects design was adopted(3 work/rest patterns×2 movement speed).15 subjects participated in this study and completed a series of visual search tasks under different combinations of work/rest patterns and movement speeds.The reaction time,critical flicker frequency and self-reported fatigue perception scores were measured.Results The results indicated that the movement speed showed significant effect on performance and subjective visual fatigue,the critical flicker frequency showed a decreasing trend as movement speed increased.Conclusion The visual fatigue was higher and the performance was worse under high movement speed than under low movement speed.The work/rest pattern showed significant effect on performance and subjective visual fatigue.The results were of implications for the design of the work/rest patterns in dynamic visual search jobs.