Studies on Multiple Approaches to Workload Assessment

工作量评估的多种方法研究

• 批准号: 06670393
• 负责人: MIYAKE Shinji
• 金额: $ 1.09万
• 依托单位: University of Occupational and Environmental Health
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1994
• 资助国家: 日本
• 起止时间: 1994 至 1995
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-06670393/
• 关键词: MENTAL WORKLOAD; NASA-TLX; AUTONOMIC NERVOUS FUNCTION; HEART RATE VARIABILITY; PERSPIRATION; PLETHYSMOGRAPH; T-WAVE AMPLITUDE; TRACKING TASK; T波振巾; 瞳孔

1. Workload Assessment in Line Workers by NASA-TLX : The NASA-TLX was revised for line workers. Four surveys were performed in an air-conditioner company. The results show significant correlation between WWL and AWWL.The test-retest correlation was also significant. Subscale scores could detect the differences in characteristics of the lines. However, these scales may not have sensitivities to a postural load. Further revisions have to be done.2. Mental Workload Assessment by Psychophysiological Indices : ECG (HRV,TWA), fingertip plethysmogram, perspiration, respiration and pupil area were recorded from sixteen male subjects. Wood piece puzzle to make a geometric pattrn (PZ), two-dimensional compensatory tracking task (FL) and numeric logical task (MN) were designed as mental tasks. The task duration for PZ was eight minutes. Three levels of difficulty were set in FL and MN task and four minutes were allowed to perform each task. New pupil measuring system was designed and developed. However, subject's eyelid disturbed the pupil measurement. It must be improved. Subjective workload was measured by NASA-TLX and Type A scores and state anxiety scores were obtained. The results show that HRV parameters were much affected by irregular respiration patterns nevertheless the subjects were instructed to control their breathing. On the other hand, amount of sweat correlated with task difficulty slightly. Furthermore, task specific responses were observed which suggest that the physiological responses differ between different kind of tasks even if the subjective workload is the same level.

1. NASA-TLX对生产线工人的评估：NASA-TLX针对生产线工人进行了修订。在一家空调公司进行了四次调查。结果表明，工作倦怠与工作倦怠之间存在显著相关，重测相关也显著。子量表得分可以检测出品系特征的差异。然而，这些量表可能对姿势负荷不敏感。需要进一步修改。心理生理指标评估：16名男性受试者记录心电图（HRV、TWA）、指尖容积图、出汗、呼吸和瞳孔面积。实验设计了拼板几何图形（PZ）、二维补偿追踪任务（FL）和数字逻辑任务（MN）等心理任务。PZ的任务持续时间为8分钟。在FL和MN任务中设置了三个难度级别，每个任务允许执行四分钟。设计并研制了新型瞳孔测量系统。然而，受试者的眼睑干扰了瞳孔测量。必须加以改进。采用NASA-TLX量表测量主观工作负荷，获得A型焦虑评分和状态焦虑评分。结果表明，心率变异性参数的影响很大，不规则的呼吸模式，但受试者被指示控制他们的呼吸。另一方面，出汗量与任务难度略有相关。此外，任务特异性反应的观察表明，不同类型的任务之间的生理反应不同，即使主观工作量是相同的水平。

项目成果

S.Miyake: "Mental Workload and Psychological Perspiration" Japanese Journal of Perspiration Research. 2 Suppl.48 (1995)

S.Miyake：“精神负荷和心理排汗”日本排汗研究杂志。

三宅晋司: "NASA-TLX簡便法の有用性の検討" 人間工学. 31. 404-405 (1995)

Shinji Miyake：“NASA-TLX 简化方法的实用性研究”人体工程学 31. 404-405 (1995)。

三宅晋司: "メンタルワークロードと精神性発汗" 発汗学. 2. 48 (1995)

Shinji Miyake：“精神负荷和精神出汗”汗水学。

S.Miyake: "Compatibility of AWWL with WWL in NASA-TLX" The Japanese Journal of Ergonomics. 31 Suppl.404-405 (1995)

S.Miyake：“AWWL 与 NASA-TLX 中 WWL 的兼容性”日本人体工程学杂志。