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Aviat Space Environ Med. 1986 Mar;57(3):218-22.
A method was developed to measure transition times between a head-up signal and a response given to a head-down display. Various arrangements of motor response (vocal, hand) and HDD images were used. In the first experiment, vocal and manual response times were recorded in a current fighter aircraft mock-up situation. The shortest times were obtained for voice responses. The time elapsed between a HUD signal and the simple response to the HDD was approximately 1600 ms. The time for physical transition where accommodation changes occur was 700 ms. In the second experiment, two types of images were displayed on the HDD: a "positive" contrast (green symbol on black background), and a "negative" contrast (black symbol on green background) in order to compare accommodation to structured and unstructured backgrounds. Perception time was significantly shorter for the "positive" contrast, and transition times were similar to those measured in the first experiment. This method permits the evaluation in a dynamic aeronautical environment of the acquisition and processing of information. Changes in psychological conditions (heavier information processing) and/or physiological conditions (changing accommodation, gaze axis, convergence) can be evaluated in future research.
开发了一种方法来测量抬头信号与对平视显示器（HDD）做出响应之间的转换时间。使用了各种运动响应（语音、手部）和HDD图像的组合。在第一个实验中，在当前战斗机模拟情况下记录语音和手动响应时间。语音响应获得了最短时间。平视显示器（HUD）信号与对HDD的简单响应之间经过的时间约为1600毫秒。发生调节变化的物理转换时间为700毫秒。在第二个实验中，在HDD上显示了两种类型的图像：“正”对比度（黑色背景上的绿色符号）和“负”对比度（绿色背景上的黑色符号），以便比较对结构化和非结构化背景的调节。“正”对比度的感知时间明显更短，转换时间与第一个实验中测量的时间相似。这种方法允许在动态航空环境中评估信息的获取和处理。心理条件（更重的信息处理）和/或生理条件（调节变化、注视轴、集合变化）的变化可以在未来的研究中进行评估。
