La vision chromatique de la population de Chateauponsac (France)

This study, is part of a more ample research on the evolution of a rural population in the Limousin, a region of Central France. All the school children (295 girls and 244 boys) of the canton of Chateauponsac were tested by the Pickford-Nicholson anomaloscope for the three tests of colour vision : red- green, blue-green and blue-yellow. A qualitative analysis on the frequencies of the deficiencies is completed by a quantitative analysis on the variability of normal colour vision (minor deficiencies included). No difference wase evidenced between the sexes in normal colour vision, there is therefore no evidence of a sex-linked heredity as is the case for the main deficiencies of the red-green axe. The age (from 6 to 18 years old) has a similar behaviour to sex. The two variables studied : mid-point and matching-range are not correlated, though there are several cases of the two minor deficiencies associated. There is a relation between the blue-green and the blue-yellow tests. The colours red and green, and blue and yellow are correlated supporting Hering's theory.This study, is part of a more ample research on the evolution of a rural population in the Limousin, a region of Central France. All the school children (295 girls and 244 boys) of the canton of Chateauponsac were tested by the Pickford-Nicholson anomaloscope for the three tests of colour vision : red- green, blue-green and blue-yellow. A qualitative analysis on the frequencies of the deficiencies is completed by a quantitative analysis on the variability of normal colour vision (minor deficiencies included). No difference wase evidenced between the sexes in normal colour vision, there is therefore no evidence of a sex-linked heredity as is the case for the main deficiencies of the red-green axe. The age (from 6 to 18 years old) has a similar behaviour to sex. The two variables studied : mid-point and matching-range are not correlated, though there are several cases of the two minor deficiencies associated. There is a relation between the blue-green and the blue-yellow tests. The colours red and green, and blue and yellow are correlated supporting Hering's theory.Elizondo Silvia. La vision chromatique de la population de Chateauponsac (France). In: Bulletins et Mémoires de la Société d'anthropologie de Paris, XIV° Série. Tome 1 fascicule 2, 1984. pp. 135-151