The Effects of Cognitive and Visual Workload on Peripheral Detection in the Detection Response Task
The Effects of Cognitive and Visual Workload on Peripheral Detection in the Detection Response Task
复制标题
检测响应任务中认知和视觉工作量对外围检测的影响
DOI：
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发表时间：
2018
期刊：
影响因子：
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通讯作者：
Wim van Winsum
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文献类型：
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作者：
Wim van Winsum
目的：通过在驾驶模拟器中执行倒数计数任务和需要持续集中视觉注意力于道路前方视野的简单驾驶任务，研究认知和视觉负荷对视觉检测响应任务（vDRT）反应时间的独立影响。该研究旨在揭示检测反应任务效应背后的注意力过程。背景：之前的研究声称 vDRT 的性能下降是由于一般干扰而不是视觉隧道造成的，但在本次实验中受到了挑战。方法：vDRT 刺激偏心率和刺激显着性被用作受试者内因素。结果：认知负荷和视觉负荷的增加都会导致 vDRT 的响应时间 (RT) 增加。认知负荷增加了 RT，但刺激偏心率相互作用没有显示任何任务。然而，在低刺激显眼的条件下，视觉负荷对 RT 的影响通过刺激偏心相互作用表现出很强的任务。此外，经验丰富的驾驶员在驾驶时在 vDRT 上的表现也更好。结论：这被视为认知和视觉工作负荷不同影响的证据。结果支持了视觉负荷的隧道视觉模型，其中周边视野的敏感度随着视觉负荷的变化而降低。然而，结果支持认知工作负荷的一般干扰模型。应用：这对 vDRT 的诊断具有影响：区分视觉任务负载和认知任务负载的结果模式。它还对不同类型任务的理论发展和工作量测量具有影响。
Objective: The independent effects of cognitive and visual load on visual Detection Response Task (vDRT) reaction times were studied in a driving simulator by performing a backwards counting task and a simple driving task that required continuous focused visual attention to the forward view of the road. The study aimed to unravel the attentional processes underlying the Detection Response Task effects. Background: The claim of previous studies that performance degradation on the vDRT is due to a general interference instead of visual tunneling was challenged in this experiment. Method: vDRT stimulus eccentricity and stimulus conspicuity were applied as within-subject factors. Results: Increased cognitive load and visual load both resulted in increased response times (RTs) on the vDRT. Cognitive load increased RT but revealed no task by stimulus eccentricity interaction. However, effects of visual load on RT showed a strong task by stimulus eccentricity interaction under conditions of low stimulus conspicuity. Also, more experienced drivers performed better on the vDRT while driving. Conclusion: This was seen as evidence for a differential effect of cognitive and visual workload. The results supported the tunnel vision model for visual workload, where the sensitivity of the peripheral visual field reduced as a function of visual load. However, the results supported the general interference model for cognitive workload. Application: This has implications for the diagnosticity of the vDRT: The pattern of results differentiated between visual task load and cognitive task load. It also has implications for theory development and workload measurement for different types of tasks.