Representation of colors in the blind, color-blind and normally sighted
Article Abstract:
Color representation is tested in adults with congenital blindness, with color- blindness and with normal vision, through analysis of color similarities using the names only, names and colors, and colors only to approximate Newton's circle. Those with any color vision showed correspondence to Newton's color circle when tested with names only. There was a deficiency with the color-blindalong the red-green dimensions when tested on name and color. Blind subjects' results partly approximated those of the color-blind but showed no correspondence with normal subjects. These show interaction of visual experience, language, and higher neural networks.
Publication Name: Psychological Science
Subject: Psychology and mental health
ISSN: 0956-7976
Year: 1992
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Surprise! An unexpected color singleton does not capture attention in visual search
Article Abstract:
A study utilized the visual search task to determine whether visual selective attention could be recorded in a stimulus-driven manner by an initial or unexpected interaction with a color singleton. It was believed that visual selective attention was mediated by two attention control mechanisms. Results showed that the appearance of an unexpected color singleton failed to improve the visual search effectiveness. There was a minimal influence provided by the unexpected color singleton's sudden appearance on visual search performance.
Publication Name: Psychological Science
Subject: Psychology and mental health
ISSN: 0956-7976
Year: 1998
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Color space of normally sighted and color-deficient observers reconstructed from color naming
Article Abstract:
Color naming technique, in combination with multidimensional scaling, forms an effective tool in reconstructing perceptive color spaces of color-deficient observers. The technique can derive three-dimensional spaces indirectly from rating measures of color dissimilarities in normal trichromats and color-deficient observers. These three-dimensional spaces can then be reconstructed for the color-deficient observers. The technique is also useful in obtaining additional information on preservation of residual red-green discrimination.
Publication Name: Psychological Science
Subject: Psychology and mental health
ISSN: 0956-7976
Year: 1996
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