Differences among color normals: classes I and II.

Color-normals may be divided into two distinct groups by studying (i) the spectral location of unique green, (ii) the additivity of spectral lights, (iii) the rate of recovery of sensitivity, and (iv) the colorimetric coordinates for “white.” The results of any one of these tests may be used to predict an individual’s performance on the remaining tests. Taken together, the results suggest that, for some individuals, 540-mm cone activity innervates the same channel activated by the 440-nm cones. This desaturation effect of the 540-nm cones cannot be entirely neural, however, because of certain differences in color matches.

[1]  W. Abney,et al.  The Threshold of Vision for Different Coloured Lights , 1916 .

[2]  P. Cobb.  Individual Variations in Retinal Sensitivity, and their Correlation with Ophthalmologic Findings. , 1922 .

[3]  W. Forbes.  An Interference Theory of Color Vision , 1928 .

[4]  W. D. Wright.  A re-determination of the trichromatic coefficients of the spectral colours , 1929 .

[5]  Forrest L. Dimmick,et al.  The Spectral Location of Psychologically Unique Yellow, Green, and Blue , 1939 .

[6]  R. Sinden.  Note on MacAdam's determination of chromaticity sensibilities. , 1945, Journal of the Optical Society of America.

[7]  A comparison of direct colorimetry of titanium pigments with their indirect colorimetry based on spectrophotometry and a standard observer. , 1949 .

[8]  Interaction between lights of different wave‐length in the central fovea , 1950, The Journal of physiology.

[9]  I. Ishak.  Determination of the Tristimulus Values of the Spectrum for Eight Egyptian Observers and One British Observer , 1952 .

[10]  Green vision and binocular fusion of yellow. , 1952, Science.

[11]  W. Stiles,et al.  N.P.L. Colour-matching Investigation: Final Report (1958) , 1959 .

[12]  W. Stiles.  COLOR VISION: THE APPROACH THROUGH INCREMENT-THRESHOLD SENSITIVITY. , 1959 .

[13]  The after‐effects of a white light stimulus , 1960, The Journal of physiology.

[14]  W. Stiles,et al.  Field Trial of 10° Color-Mixture Functions , 1960 .

[15]  M. Rubin,et al.  Spectral hue loci of normal and anomalous trichromates. , 1961, American journal of ophthalmology.

[16]  G. Brindley,et al.  Two new properties of foveal after‐images and a photochemical hypothesis to explain them , 1962, The Journal of physiology.

[17]  S. M. Luria,et al.  Color-mixture functions at low luminance levels. , 1964, Vision research.

[18]  W A RUSHTON,et al.  The specificity of the cone interaction in the after‐flash effect , 1965, The Journal of physiology.

[19]  B H Crawford.  Colour matching and adaptation. , 1965, Vision research.

[20]  G. S. Wasserman.  Brightness enhancement in intermittent light: variation of luminance and light-dark ratio. , 1966, Journal of the Optical Society of America.