VRT as a new apparatus for fatigue measurement and its application.

在这个项目中，作者设计了一个计算机控制的疲劳评估装置。该装置的设计是基于20年前发明的TAF测试。测量VRT时，受试者被指示跟随一个带有划桨控制的十字形标记的点目标，并将标记叠加在目标上。计算机每0.2秒计算一次标枪与目标之间的距离，每分钟记录一次数据。这个过程重复了三次。从该测量中获得的数据的平均值称为“VRT-M”，数据的标准差称为“VRT-D”。首先分析了vrt值的训练效果、日变化、周变化和相似性。通过方差分析和学习百分比分析，发现VRT-D的训练效果显著。然而，对训练效果曲线的分析显示，VRT的训练效果在5次训练后消失。Mo . More day的VRT-M和VRT-D值高于其他天数。然而，没有发现VRT-M和VRT-D值的显著日变化和周变化。VRT值与近点距离之间没有相似性。VRT值与CFF值或TAF值之间存在显著的相似性。其次，研究了VRT的两种应用。在第一个实验中，受试者分别完成纸任务和VDT任务，时间为2小时。虽然工作期间的VRT值在两个任务之间没有明显差异，但工作结束后，VDT任务的VRT值与纸张任务的VRT值存在显著差异。在第二个实验中，研究了雷电和噪声对VDT工作的联合影响。在任何条件下均无显著差异。VRT值与问卷回答、屈光、瞳孔直径和TAF值有显著相关。VRT-M与脑电图的CFF值和百分比alpha值具有显著相关性。少

In this project the authors designed a computer-controlled apparatus to evaluate fatigue. The design of this apparatus was based on the TAF test, which was originated 20 years ago. Measuring VRT, a subject was instructed to follow a dot target with a cross-shaped marker controlled by a paddle, and to superimpose the marker on the target. The computer calculated the distance between the marker and the target every 0.2 sec, and recorded the data per minute. This process was repeated three times. The average of the data obtained from this measurement was called "VRT-M," and the S.D. of the data, "VRT-D."Firstly, training effects, daily changes, weekly changes and similarities of the VRT-values were analyzed. A significant training effect of the VRT-D was recognized through analysis with the ANOVA and the percentage of learning. However, analysis of the training effect curve revealed that the training effects of VRT disappeared after five practice sessions. The VRT-M and VRT-D values on Mo … More nday were higher than those on other days. Nevertheless, significant daily changes and weekly changes in the VRT-M and VRT-D values were not recognized. No similarity between the VRT value and the near-point distance was recognized. Significant similarities between the VRT value and the CFF value or TAF value were recognized.Secondary, two applications of the VRT were examined. In the first experiment, a task with paper and a VDT task were undertaken by subjects for two hours. Although VRT values during the work did not show any significant difference between the two tasks, after the work there was a significant difference in the VRT values of the VDT task and the paper task. In the second experiment, the combined effects of lightning and noise on VDT work were investigated. There were no significant differences under any conditions. There were significant correlations of the VRT value to answers to the questionnaire, to refraction, to pupillary diameter and to the TAF value. Significant correlations of VRT-M to CFF value and to the percent alpha value of the EEG were recognized. Less