Eye-tracking reveals how observation chart design features affect the detection of patient deterioration: An experimental study
Eye-tracking reveals how observation chart design features affect the detection of patient deterioration: An experimental study
复制标题
DOI：
10.1016/j.apergo.2018.10.005
复制
发表时间：
2019-02-01
影响因子：
3.2
通讯作者：
Watson, Marcus O.
中科院分区：
文献类型：
--
作者：
Cornish, Lillian;Hill, Andrew;Watson, Marcus O.
旨在提高可用性的特定设计功能（包括图形显示的观察结果和集成的基于颜色的评分系统）已被证明可以提高医院观察图表用户检测异常患者观察结果的速度和准确性。我们使用眼动追踪来评估这些效应背后的两种潜在认知机制。新手图表用户完成了一系列的实验性试验，在这些试验中，他们查看了三种观察图表设计之一（受试者不同）上的患者数据，并指出哪些观察结果异常（或没有异常）。一个图表，结合了图形显示的意见和一个集成的基于颜色的评分系统产生更快，更准确的反应和更少，更短的固定比没有基于颜色的评分系统的图形图表。后者，反过来，产生了同样的优势，一个表格式的图表（其中包括两个设计特点）。这些结果表明，基于颜色的评分系统和图形显示的观察提高了搜索效率，并减少了处理生命体征数据所需的认知资源。
Particular design features intended to improve usability - including graphically displayed observations and integrated colour-based scoring-systems have been shown to increase the speed and accuracy with which users of hospital observation charts detect abnormal patient observations. We used eye-tracking to evaluate two potential cognitive mechanisms underlying these effects. Novice chart-users completed a series of experimental trials in which they viewed patient data presented on one of three observation chart designs (varied within subjects), and indicated which observation was abnormal (or that none were). A chart that incorporated both graphically displayed observations and an integrated colour-based scoring-system yielded faster, more accurate responses and fewer, shorter fixations than a graphical chart without a colour-based scoring-system. The latter, in turn, yielded the same advantages over a tabular chart (which incorporated neither design feature). These results suggest that both colour-based scoring-systems and graphically displayed observations improve search efficiency and reduce the cognitive resources required to process vital sign data.