Contrast/Color Card Procedure: A New Test of Young Infants' Color Vision
Contrast/Color Card Procedure: A New Test of Young Infants' Color Vision
复制标题
对比/色卡程序：小婴儿色觉的新测试
DOI：
10.1097/00006324-199107000-00003
复制
发表时间：
1991
影响因子：
1.4
通讯作者：
R. Adams
中科院分区：
文献类型：
--
作者：
Michele E. Mercer;M. Courage;R. Adams
我们已经开发了一个新的测试，可以快速评估单个婴儿的基本色觉。首先，我们评估了婴儿的亮度的两相系统变化。在第二阶段的中间亮度。在第1阶段的表现。用4个宽带色斑，红色（主要λ= 660 nm），黄色（主要λ= 580 nm），绿色（主要λ=占主导）（主要λ=）测试了七十2个和3个月大的孩子。 520 nm），一个蓝色（主要λ= 475 nm）。接近成人的亮度匹配。该测试表明，有望是一种相对简单，及时且便携式工具，用于评估早期色觉。
We have developed a new test which can rapidly evaluate basic color vision in individual infants. The test consists of a series of large cards constructed with Muncell Hues. It uses a modified preferential looking procedure (FPL) and, to control brightness cues, incorporates a two-phase systematic variation of luminance. First, we evaluate an infant's ability to discriminate 9.5 by 16° achromatic patches of varying luminance from a 26 by 65° achromatic background of midrange luminance. In the second phase the test patch is chromatic and its luminance, relative to the background, is varied over a range of about 1.0 log cd/m2. The number of relative luminances chosen for each infant depends upon his/her performance in phase 1. Seventy 2- and 3-month-olds were tested with 4 broad-band chromatic patches, a red (dominant λ=660 nm), a yellow (dominant λ=580 nm), a green (dominant λ=520 nm), and a blue (dominant λ=475 nm). Results showed that 3- month-olds had little difficulty making any of the chromatic- achromatic discriminations but many 2-month-olds appeared to fail to discriminate the yellow and green from the background at relative luminances close to an adult brightness match. Most importantly, the test shows promise as a relatively simple, time-efficient, and portable tool for the assessment of early color vision.