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Effects of noise and workload on performance with two object displays vs. a separated display.

机译:噪声和工作负载对两个对象显示器与一个单独的显示器的性能的影响。

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摘要

This study examines the effects of stress on the processing of displayed information from two types of object displays, formed by the color and size of a bar, or by the height and width of a rectangle, and from a separated two bargraph display. Subjects either integrated information across the two dimensions of each display or focused attention on each dimension, in a simulated airborne decision task. In Experiment 1 (14 subjects), stress was imposed via three levels of workload of a concurrent visual search task. In Experiment 2 (14 subjects), it was imposed by 88 dB helicopter noise. Results indicated that information integration was best supported by the rectangle display at higher levels of workload. Both the color bar and the bargraph display were associated with poor performance on the integration task, but were superior on the focused attention task. Hence, an emergent feature of the rectangle (its area), rather than objectness per se, was the critical element supporting information integration and disrupting focused attention. The imposition of noise enhanced the subjective feeling of stress. Noise did not influence performance on the decision task, but differentially affected the resources necessary to extract that information. Noise reduced the resource demands of both object displays and increased the resource demands of the separate bargraph display.
机译:这项研究考察了应力对两种类型的对象显示(由条形的颜色和大小或矩形的高度和宽度所形成)以及分离的两个条形图显示对显示信息的处理的影响。在模拟的空中决策任务中,受试者要么跨每个显示器的两个维度集成信息,要么将注意力集中在每个维度上。在实验1(14个主题)中,通过同时进行的视觉搜索任务的三个工作负荷水平施加了压力。在实验2(14个受试者)中,它是由88 dB的直升机噪声强加的。结果表明,矩形显示在工作量较高的情况下最好地支持信息集成。彩色条和条形图显示在集成任务上均表现不佳,但在集中注意力任务上却表现出色。因此,矩形(其区域)的一个显着特征,而不是本身的客观性,是支持信息集成并破坏注意力的关键要素。施加噪音增强了主观压力感。噪声不会影响决策任务的性能,但会以不同的方式影响提取信息所需的资源。噪声减少了两个对象显示的资源需求,并增加了单独的条形图显示的资源需求。

著录项

  • 作者

    Zhang, Kan.;

  • 作者单位

    University of Illinois at Urbana-Champaign.;

  • 授予单位 University of Illinois at Urbana-Champaign.;
  • 学科 Psychology Experimental.
  • 学位 Ph.D.
  • 年度 1990
  • 页码 137 p.
  • 总页数 137
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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