A COMPARISON OF RATING-SCALE, SECONDARY-TASK, PHYSIOLOGICAL, AND PRIMARY-TASK WORKLOAD ESTIMATION TECHNIQUES IN A SIMULATED FLIGHT TASK EMPHASIZING COMMUNICATIONS LOAD
A COMPARISON OF RATING-SCALE, SECONDARY-TASK, PHYSIOLOGICAL, AND PRIMARY-TASK WORKLOAD ESTIMATION TECHNIQUES IN A SIMULATED FLIGHT TASK EMPHASIZING COMMUNICATIONS LOAD
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DOI：
10.1177/001872088302500602
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发表时间：
1983-01-01
期刊：
影响因子：
3.3
通讯作者：
WIERWILLE, WW
中科院分区：
文献类型：
--
作者：
CASALI, JG;WIERWILLE, WW
本研究考察了飞行员脑力负荷的16个潜在测量指标，考察了它们对通信负荷的敏感性及其对主要任务绩效的干扰。一个移动基地飞行模拟器被用来展示三次越野飞行。这些飞行只是在通信要求的困难方面有所不同。飞行后立即获得评级量表；所有其他的都是在飞行任务的7分钟段内进行的。结果表明，修正后的Cooper-Harper量表和工作负荷多描述符量表对通信负荷的变化都比较敏感。时间估计的次要任务测量和生理测量的瞳孔直径也是敏感的。正如预期的那样，作为沟通绩效的直接测量的那些主要任务测量也对负荷敏感，而飞机控制主要任务测量不敏感，这证明了这些测量的任务特异性。最后，入侵分析显示工作负载措施之间没有差异干扰。
Sixteen potential metrics of pilot mental workload were investigated regarding their sensitivity to communication load and their intrusion on primary-task performance. A moving-base flight simulator was used to present three cross-country flights. The flights varied only in the difficulty of the communications requirements. Rating scale measures were obtained immediately postflight; all others were taken over a 7-min segment of the flight task. The results indicated that both the Modified Cooper-Harper Scale and the workload Multi-descriptor Scale were sensitive to changes in communications load. The secondary-task measure of time estimation and the physiological measure of pupil diameter were also sensitive. As expected, those primary-task measures that were direct measures of communicative performance were also sensitive to load, whereas aircraft control primary-task measures were not, attesting to the task specificity of such measures. Finally, the intrusion analysis revealed no differential interference between workload measures.