Color-discrimination threshold determination using pseudoisochromatic test plates

Frontiers in Psychology

Kaiva Jurasevska¹ 

关键词: color vision;    psychophysics;    vision system;    color measurement;    color-vision deficiency;    color-vision defects;    color perception;   

DOI  :  10.3389/fpsyg.2014.01376

学科分类：心理学（综合）

来源: Frontiers

【 摘 要 】

We produced a set of pseudoisochromatic plates for determining individual color-difference thresholds to assess test performance and test properties, and analyzed the results. We report a high test validity and classification ability for the deficiency type and severity level [comparable to that of the fourth edition of the Hardy–Rand–Rittler (HRR) test]. We discuss changes of the acceptable chromatic shifts from the protan and deutan confusion lines along the CIE xy diagram, and the high correlation of individual color-difference thresholds and the red–green discrimination index. Color vision was tested using an Oculus HMC anomaloscope, a Farnsworth D15, and an HRR test on 273 schoolchildren, and 57 other subjects with previously diagnosed red–green color-vision deficiency.

【 授权许可】

CC BY