Colour-space distortion in women who are heterozygous for colour deficiency.
We examined colour perception among a group of women heterozygous for colour vision deficiency. Judgements of colour dissimilarity were collected by presenting colour stimuli in groups of three for odd-one-out decisions. The judgements were summarised as one consensus colour space for the heterozygotes and another for age-matched controls. Individual differences MDS was also applied, resulting in a single colour space which can be adjusted to fit each subject's responses individually by compressing it along its axes. Heterozygous women showed a trend towards colour-space compression in a red-green dimension, or reduced salience of that dimension compared to controls, though less extreme than found in overt colour deficiency.
Bimler
David
D
School of Arts, Development and Health Education, Massey University, Private Bag 11-222, Palmerston North, New Zealand. d.bimler@massey.ac.nz
Kirkland
John
J
D016022:Case-Control Studies; D003118:Color Perception / Q000235:genetics / Q000502:physiology; D003119:Color Perception Tests / Q000379:methods; D003117:Color Vision Defects / Q000235:genetics*; D004192:Discrimination, Psychological; D005260:Female; D006579:Heterozygote; D006801:Humans; D008297:Male; D009903:Optical Illusions; D011601:Psychophysics / Q000379:methods; D013028:Space Perception / Q000502:physiology*