Target Time data from the 25 Target Condition in Experiment 1b in the manuscript "The Importance of Search Strategy for Finding Targets in Open Terrain".

Target Time data from the 25 Target Condition in Experiment 1b in the manuscript "The Importance of Search Strategy for Finding Targets in Open Terrain".Abstract:A number of real world search tasks (i.e., police search, IED detection,) require searchers to search exhaustively across open ground. In the present study, we simulated this problem by asking individuals (Experiments 1a and 1b) and dyads (Experiment 2) to search for coin targets pseudo-randomly located in a bounded area of open grassland terrain. In Experiment 1a, accuracy, search time and the route used to search an area were measured. Participants tended to use an ‘S’ shaped pattern with a common width of search lane. Increased accuracy was associated with slower, but also variable, search speed, though only when participants moved along the length (as opposed to across the width) of the search area. Experiment 1b ,varied the number of targets available within the bounded search area and in doing so varied target prevalence and density. The results confirmed that the route taken in Experiment 1a generalizes across variations in target prevalence/density. In Experiment 2, accuracy, search time, and the search strategy used by dyads was measured. While dyads were more accurate than individuals, dyads that opted to conduct two independent searches were more accurate than those who opted to split the search space. The implications of these results for individuals and pairs when searching for targets in open space are discussed.

本数据集为论文《开放地形中目标搜寻策略的重要性》（The Importance of Search Strategy for Finding Targets in Open Terrain）实验1b中25种目标条件对应的目标时间数据。摘要：现实世界中存在诸多搜寻任务（如警方搜捕、简易爆炸装置（Improvised Explosive Device, IED）探测等），均要求搜寻人员对开阔地面开展全覆盖搜寻。本研究通过两类实验场景模拟该问题：单人搜寻实验（实验1a与1b）与双人协作搜寻实验（实验2），要求被试在划定的开阔草地范围内搜寻伪随机分布的硬币目标。实验1a中，研究者测量了搜寻准确率、搜寻时长以及所采用的搜寻路线。结果发现，被试倾向于采用具有统一搜索带宽度的“S形”搜寻模式。更高的搜寻准确率与更慢但波动更大的搜寻速度相关，且该关联仅在被试沿搜寻区域的纵向（而非横向）移动时成立。实验1b调整了划定搜寻区域内的目标数量，以此操控目标出现率与目标密度。研究结果证实，实验1a中采用的搜寻路线可推广至不同目标出现率/密度的场景中。实验2中，研究者测量了双人搜寻的准确率、搜寻时长以及所采用的搜寻策略。尽管双人组的搜寻准确率高于单人组，但其中选择开展两次独立搜寻的双人组，其搜寻准确率要高于选择拆分搜寻空间的双人组。本文最后讨论了上述结果对单人及双人在开阔空间开展目标搜寻任务的启示意义。