时钟定时对VDT视觉搜索性能的影响在时间限制下
Jiabin Hu1, Qun Chen1, Danqiong Lu1
1School of Art and Design, North China Institute of Science and Technology, Langfang, Hebei, China.
Frontiers in psychology
|July 30, 2024
概括
时钟显示器可以提高视觉显示终端 (VDT) 的视觉搜索速度,但在严格的时间限制下可以降低准确性. 这项研究调查了时钟计时的时间.
科学领域:
- 人与计算机的交互
- 认知心理学 认知心理学
- 视觉感知 视觉感知 视觉感知
背景情况:
- 在时间限制下的视觉搜索任务在安全和医疗诊断等领域至关重要.
- 虽然时间压力可以提高性能,但它对视觉显示终端 (VDT) 接口的影响需要进一步调查.
- 时钟定时显著影响感知时间压力和视觉搜索性能.
研究的目的:
- 调查时钟定时对视觉显示终端 (VDT) 在时间限制下视觉搜索性能的影响.
- 分析不同的时钟显示方法和持续时间如何影响搜索速度和准确性.
- 了解时间压力,时钟定时和视觉搜索任务中的用户性能之间的关系.
主要方法:
- 一个两阶段的实验,21名本科生执行视觉搜索任务 (在"F"中定位"E").
- 第一个阶段:比较没有时钟,4分钟时钟和4分钟倒计时时钟.
- 第二阶段:改变倒计时时钟的持续时间 (长,中,短) 以评估对搜索速度和准确性的影响.
主要成果:
- 与没有时钟相比,时钟显示显著提高了搜索速度 (P=0.014),在第一阶段没有显著的精度差异.
- 在第二阶段更严格的时间限制导致反应时间显著加快 (P<0.05),但精度降低 (P<0.05).
- 在严格的时间限制下观察到反应时间和准确性之间的负相关性 (肯达尔的R = 0.220,P<0.01).
结论:
- 时钟显示器可以提高视频显示器的视觉搜索速度,但在更严格的时间限制下,准确性可能会下降.
- 较短的时间限制增加了搜索速度,但可能导致精度降低和疲劳增加.
- 结果为设计VDT接口中的有效时钟定时提供了有价值的见解,用于时间紧迫的视觉搜索任务.
相关概念视频
01:18Effects of EDTA on End-Point Detection Methods
Different methods, such as visual observance of metal-ion indicators, spectroscopic techniques, and potentiometric methods, can determine the endpoint of an EDTA titration.
In the visual method, metal-ion indicators (metallochromic dyes), which have distinct colors in their free and complex forms, are added to the mixture to signal the titration's end point. They form stable complexes with metal ions, but these complexes are weaker than the corresponding metal–EDTA complexes. As a result, EDTA...
In the visual method, metal-ion indicators (metallochromic dyes), which have distinct colors in their free and complex forms, are added to the mixture to signal the titration's end point. They form stable complexes with metal ions, but these complexes are weaker than the corresponding metal–EDTA complexes. As a result, EDTA...
01:30Electronic Distance Measuring Instruments
Electronic Distance Measuring Instruments (EDMs) are essential tools in modern surveying, offering precise distance measurements by emitting electromagnetic signals and calculating the time required for these signals to travel to a target and return. Two primary types of signals are used in EDMs — light waves and microwaves — each suited to specific environmental and distance requirements. Light-wave-based EDMs utilize either infrared or laser light, providing high accuracy over short distances...