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Variability and systematic differences in normal, protan, and deutan color naming.

Nagy BV, Németh Z, Samu K, Ábrahám G - Front Psychol (2014)

Bottom Line: The results show a large variability in color naming for the CVD when contrasted to normal color vision and similar alterations when comparing protans to deutans.Statistically significant differences were found in specific wavelength ranges between the tested groups.In general, protans and deutans have shown better color naming ability than expected, which suggests the use of non-chromatic visual cues.

View Article: PubMed Central - PubMed

Affiliation: Vision Laboratory, Institute of Psychology, University of São Paulo São Paulo, Brazil ; Department of Mechatronics, Optics and Engineering Informatics, Budapest University of Technology and Economics Budapest, Hungary.

ABSTRACT
The congenital color vision deficient (CVD) generally demonstrates difficulties in color naming tasks. In our study we investigated color naming properties and uncertainties of a relatively large group of red-green CVDs using quasi monochromatic stimuli and seven basic color terms. The results show a large variability in color naming for the CVD when contrasted to normal color vision and similar alterations when comparing protans to deutans. Statistically significant differences were found in specific wavelength ranges between the tested groups. In general, protans and deutans have shown better color naming ability than expected, which suggests the use of non-chromatic visual cues.

No MeSH data available.


Related in: MedlinePlus

Color naming ranges of the five tested groups indicated with their colors. (The color names’ initials are positioned in the middle of the normal ranges.) The overlapping ranges show increase in uncertainty when naming the stimulus color.
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Figure 4: Color naming ranges of the five tested groups indicated with their colors. (The color names’ initials are positioned in the middle of the normal ranges.) The overlapping ranges show increase in uncertainty when naming the stimulus color.

Mentions: Color naming ranges for each color term and subject category were calculated by applying the mathematical fit functions. Results shown in Figure 3 were processed by using fit parameters (calculating the range of a specific color name using the full width at half maximum centered onto the peak) in order to compare the color naming ranges. Figure 4 represents how color naming differs in the case of normals and in the four CVD groups. The overlapping ranges show increasing uncertainty of color name use especially in the anope groups.


Variability and systematic differences in normal, protan, and deutan color naming.

Nagy BV, Németh Z, Samu K, Ábrahám G - Front Psychol (2014)

Color naming ranges of the five tested groups indicated with their colors. (The color names’ initials are positioned in the middle of the normal ranges.) The overlapping ranges show increase in uncertainty when naming the stimulus color.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4260480&req=5

Figure 4: Color naming ranges of the five tested groups indicated with their colors. (The color names’ initials are positioned in the middle of the normal ranges.) The overlapping ranges show increase in uncertainty when naming the stimulus color.
Mentions: Color naming ranges for each color term and subject category were calculated by applying the mathematical fit functions. Results shown in Figure 3 were processed by using fit parameters (calculating the range of a specific color name using the full width at half maximum centered onto the peak) in order to compare the color naming ranges. Figure 4 represents how color naming differs in the case of normals and in the four CVD groups. The overlapping ranges show increasing uncertainty of color name use especially in the anope groups.

Bottom Line: The results show a large variability in color naming for the CVD when contrasted to normal color vision and similar alterations when comparing protans to deutans.Statistically significant differences were found in specific wavelength ranges between the tested groups.In general, protans and deutans have shown better color naming ability than expected, which suggests the use of non-chromatic visual cues.

View Article: PubMed Central - PubMed

Affiliation: Vision Laboratory, Institute of Psychology, University of São Paulo São Paulo, Brazil ; Department of Mechatronics, Optics and Engineering Informatics, Budapest University of Technology and Economics Budapest, Hungary.

ABSTRACT
The congenital color vision deficient (CVD) generally demonstrates difficulties in color naming tasks. In our study we investigated color naming properties and uncertainties of a relatively large group of red-green CVDs using quasi monochromatic stimuli and seven basic color terms. The results show a large variability in color naming for the CVD when contrasted to normal color vision and similar alterations when comparing protans to deutans. Statistically significant differences were found in specific wavelength ranges between the tested groups. In general, protans and deutans have shown better color naming ability than expected, which suggests the use of non-chromatic visual cues.

No MeSH data available.


Related in: MedlinePlus