Effect of Multi-notch filter on Color Arrangement Test Performance in Color Normal and Color Deficient Humans

Kitchens, Julia; Cisarik, Patricia

doi:10.1167/17.10.655

Cited by 3 publications

(1 citation statement)

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“…For the physical Farnsworth-Munsell 100 hue test, no significant effects of EnChroma filters have been found for total error scores (Álvaro et al, 2022;Gómez-Robledo et al, 2018;Kitchens & Cisarik, 2017;Pattie et al, 2022), but changes have been reported in the distribution of errors around the hue circle (Kitchens & Cisarik, 2017;Pattie et al, 2022). For the physical Ishihara Plates test there are mixed findings on the effect of EnChroma filters.…”

Section: Introductionmentioning

confidence: 95%

Empirical tests of the effectiveness of EnChroma multi-notch filters for enhancing color vision in anomalous trichromacy

Bosten¹,

Franklin²,

Somers³

2023

Preprint

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Manufacturers of notch filter-based aids for color vision claim that their products can enhance color perception for people with anomalous trichromacy, a form of color vision deficiency (CVD). Anecdotal reports imply that people with CVD can have radically enhanced color vision when using the filters. However, existing empirical research largely focussed on the effect of notch filters on performance on diagnostic tests for CVD has not found that they have any substantial effect. Informed by a model of anomalous trichromatic color vision, we selected stimuli predicted to reveal an effect of EnChroma filters. Using these stimuli, we tested the ability of EnChroma filters to enhance color vision for 10 anomalous trichromats in three experiments: 1. asymmetric color matching between test and control filter conditions, 2. color discrimination measured using four alternative forced-choice, and 3. color appearance measured using dissimilarity ratings to reconstruct subjective color spaces using multidimensional scaling. To investigate potential effects of long-term adaptation or perceptual learning, participants completed all three experiments at two time points, on first exposure to the filters, and after a week of regular use. We found a significant effect of the filters on color matches in the direction predicted by the model at both time points, implying that the filters can enhance the anomalous trichromatic color gamut. However, we found minimal effect of the filters on color discrimination. We found a significant effect of the filters in enhancing the appearance of colors along the red-green axis, but only at the first time point, and not after a week of regular use. Our results provide the first good evidence that notch filters can enhance color perception for anomalous trichromats.

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Section: Introductionmentioning

confidence: 95%

Empirical tests of the effectiveness of EnChroma multi-notch filters for enhancing color vision in anomalous trichromacy

Bosten¹,

Franklin²,

Somers³

2023

Preprint

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Empirical tests of the effectiveness of EnChroma multi-notch filters for enhancing color vision in deuteranomaly

Somers,

Franklin,

Bosten

2024

Vision Research

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Effects of color-enhancing glasses on color vision in congenital red-green color deficiencies

et al. 2022

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As commercially available glasses for color vision deficiency (CVD) are classified as low risk, they are not subject to stringent marketing regulations. We investigate how EnChroma and VINO glasses affect performance on the Colour Assessment and Diagnosis (CAD) test in individuals with CVD. Data were obtained from 51 individuals with red-green CVD. Blood or saliva samples were collected to examine the structure of the OPN1LW/OPN1MW array. Individuals completed the CAD test twice without glasses and once with each pair of glasses. Although there was a statistically significant effect of both glasses, only that of VINO could be considered functionally meaningful.

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Effect of Multi-notch filter on Color Arrangement Test Performance in Color Normal and Color Deficient Humans

Cited by 3 publications

References 0 publications

Empirical tests of the effectiveness of EnChroma multi-notch filters for enhancing color vision in anomalous trichromacy

Empirical tests of the effectiveness of EnChroma multi-notch filters for enhancing color vision in anomalous trichromacy

Empirical tests of the effectiveness of EnChroma multi-notch filters for enhancing color vision in deuteranomaly

Effects of color-enhancing glasses on color vision in congenital red-green color deficiencies

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