Rhodes J W, Garcia P V, Cosgrove D J
Technology Services Division, KRUG International, San Antonio, TX 78279-0644.
Aviat Space Environ Med. 1989 Jan;60(1):34-9.
Flashblindness was measured in rhesus monkeys performing a visual detection task. Stimulus field subtense was 3.5 degrees, and mean luminance was 10 cd.m-2. Single-pulse laser exposures (doubled Nd:glass, 530-nm wavelength, 20-ns pulsewidth) were presented in Maxwellian-view and formed a 12.5 degrees diameter spot centered on the fovea. The independent variables were: test grating contrast (10% and maximum contrast); test grating spatial frequency (1, 4, 12 c.deg-1); and averaged laser exposure energy (1-94% retinal maximum permissible exposure). The dependent variable was flashblindness, operationally defined as the time between a laser exposure and the first response in a pair of consecutive correct responses (referred to as "time to criterion"). Time to criterion decreased as the contrast of the grating increased. The longest times to criterion were at a spatial frequency of 12 c.deg-1, next longest at 1 c.deg-1, and shortest at 4 c.deg-1. Both the mean and S.E.M. of times to criterion increased with the laser exposure energy.
在执行视觉检测任务的恒河猴中测量闪光盲。刺激视野张角为3.5度，平均亮度为10 cd·m⁻²。单脉冲激光曝光（倍频钕玻璃，波长530 nm，脉冲宽度20 ns）以麦克斯韦观察法呈现，形成一个以中央凹为中心、直径12.5度的光斑。自变量为：测试光栅对比度（10%和最大对比度）；测试光栅空间频率（1、4、12 c·deg⁻¹）；以及平均激光曝光能量（1 - 94%视网膜最大允许曝光量）。因变量为闪光盲，其操作定义为激光曝光与一对连续正确反应中的第一个反应之间的时间（称为“达到标准的时间”）。达到标准的时间随着光栅对比度的增加而减少。达到标准的最长时间出现在空间频率为12 c·deg⁻¹时，其次是1 c·deg⁻¹，最短的是4 c·deg⁻¹。达到标准时间的平均值和标准误均随着激光曝光能量的增加而增加。
