先天性色覚異常者の色命名能力に関する研究—第2報 視標の大きさについて

Studies on Color Naming Test for Congenital Color Defectives.:Report 2. Size of Test Stimuli

緒　言

　Dvorine表に附属するnomenclature testそのものでの実験については，第1報にて報告した。今回はその色のうち飽和色のみを用い，視標の直径を小さくして実験した。

A group of 38 deutans and 19 protans were tested for color naming using 8 saturated colors selected from Dvorine's nomenclature test. The stimulus colors were presented in 3 different sizes : 26.0mm,4.0mm and 1.5mm in diameter on white background at the distance of 75cm (visualangle subtended 2°, 18' and 7' respectively). A higher frequency of incorrect answers was usually associated with smaller-sized stimuli.Gray was the sole exception as the rate of in-correct answers was constanct for all sizes.