Adams R J, Courage M L, Glynn M
Department of Psychology, Memorial University, St. John's, Newfoundland, Canada.
Optom Vis Sci. 1998 Aug;75(8):623-5. doi: 10.1097/00006324-199808000-00029.
To improve test efficiency, we modified our previously introduced contrast/color card test by including a patterned test stimulus and reducing the number of stimuli in both experimental phases. Compared with the prototype, completion rate improved substantially (79 vs. 37%) but test time decreased only modestly (19 vs. 21 min). Achromatic contrast discrimination improved threefold (mean, 0.06 vs. 0.20 log units), but the percentage of 2-month-old infants who discriminated (from gray) 660-nm red (86 vs. 80%) and 580-nm yellow (52 vs. 55%) was consistent. In addition, 48% discriminated 574-nm yellow-green. Moreover, because 88% of infants' failures included the respective adult brightness/luminance match, a small range of relative luminances is adequate for testing infant color vision.
为提高测试效率，我们对之前引入的对比度/颜色卡片测试进行了改进，增加了一个带图案的测试刺激，并在两个实验阶段减少了刺激的数量。与原型相比，完成率大幅提高（79%对37%），但测试时间仅略有减少（19分钟对21分钟）。消色差对比度辨别能力提高了两倍（平均值，0.06对数单位对0.20对数单位），但辨别出660纳米红色（86%对80%）和580纳米黄色（52%对55%）（相对于灰色）的2个月大婴儿的百分比保持一致。此外，48%的婴儿辨别出了574纳米的黄绿色。而且，由于88%的婴儿测试未通过情况包括各自对应的成人亮度/明度匹配，因此一小范围的相对亮度就足以用于测试婴儿的色觉。
