Hancock P A, Sawyer B D, Stafford S
a MIT Laboratory , University of Central Florida , 4000 Central Florida Boulevard, Orlando , FL 32816 , USA.
Ergonomics. 2015;58(3):337-54. doi: 10.1080/00140139.2014.973914. Epub 2015 Jan 20.
We examined the systematic effects of display size on task performance as derived from a standard perceptual and cognitive test battery. Specifically, three experiments examined the influence of varying viewing conditions on response speed, response accuracy and subjective workload at four differing screen sizes under three different levels of time pressure. Results indicated a ubiquitous effect for time pressure on all facets of response while display size effects were contingent upon the nature of the viewing condition. Thus, performance decrement and workload elevation were evident only with the smallest display size under the two most restrictive levels of time pressure. This outcome generates a lower boundary threshold for display screen size for this order of task demand. Extrapolations to the design and implementation of all display sizes and forms of cognitive and psychomotor demand are considered.
我们通过一套标准的感知和认知测试组合，研究了显示屏大小对任务表现的系统性影响。具体而言，三项实验考察了在三种不同时间压力水平下，四种不同屏幕尺寸的变化观看条件对反应速度、反应准确性和主观工作量的影响。结果表明，时间压力对反应的各个方面都有普遍影响，而显示屏大小的影响则取决于观看条件的性质。因此，只有在两种最严格的时间压力水平下，最小的显示屏尺寸才会明显导致性能下降和工作量增加。这一结果为该任务需求等级的显示屏大小产生了一个下限阈值。文中还考虑了对所有显示屏尺寸以及各种认知和心理运动需求形式的设计与实施的推断。
