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Examining eye fixation patterns during the Situation Present Assessment Method (SPAM) under varying levels of workload

机译：在工作量不同的情况下，在“现状呈现评估方法”（SPAM）中检查眼部固定模式

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摘要

The situated approach to situation awareness (SA) claims that operators use tools and displays to store information that cannot be held in working memory when they are performing complex and dynamic tasks. Based on this approach, operators store general and high priority information internally and offload specific and low priority information to the environment. High levels of workload can lead to a reduction in working memory capacity and can increase levels of stress. As a result, workload is likely to affect how an operator stores information. The current study tests the situated approach to SA and its assumptions by examining eye fixations during the Situation Present Assessment Method (SPAM) for measuring situation awareness and examines how a shift in workload affects situation awareness and offloading behavior. Results found support for the situated approach to SA such that participants took longer to answer probe queries, made more glances toward the radar scope, and had longer eye glance latencies when answering specific questions than general questions, indicating that they offloaded specific information to the environment. Furthermore, results indicated that workload lead to a change in strategy such that participants took longer to answer probe queries, made more glances toward the radar scope, and had longer eye glance latencies when under high workload conditions. Therefore, higher workload leads an operator to offload information to the environment.
机译：情境感知（SA）的定位方法要求操作员使用工具和显示来存储在执行复杂和动态任务时无法保存在工作内存中的信息。基于此方法，操作员在内部存储常规和高优先级信息，并将特定的低优先级信息卸载到环境中。高水平的工作负载可能导致工作内存容量减少，并可能增加压力水平。结果，工作量可能会影响操作员存储信息的方式。当前的研究通过在情境现状评估方法（SPAM）期间检查眼球注视力来评估情境意识，并检验工作量的变化如何影响情境意识和卸载行为，从而测试了SA的假设方法及其假设。结果发现了对SA的定位方法的支持，这样参与者在回答特定问题时比在一般问题上花费更长的时间回答探查问题，对雷达范围有更多的一瞥，并且有更长的眼视潜伏期，这表明他们将特定信息转移到了环境中。 。此外，结果表明工作量导致了策略的改变，使得在高工作量条件下，参与者花更长的时间回答探查问题，对雷达范围有更多的目光，并且眼神的等待时间更长。因此，较高的工作量导致操作员将信息卸载到环境中。

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  • 作者

    Miramontes, Adriana J.;

  • 作者单位

    California State University, Long Beach.;

  • 授予单位 California State University, Long Beach.;
  • 学科 Cognitive psychology.
  • 学位 M.S.
  • 年度 2017
  • 页码 59 p.
  • 总页数 59
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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