Color memory matching in normal and red-green anomalous trichromat subjects

The methods of simultaneous and successive color matching have been studied for a set of seven color reference samples by 15 protanomalous and 21 deut eranomnlous trichromat subjects. From comparison between both populations a nd a group of 25 trichromat normal ones, investigated previously under simi lar experimental conditions [J. Perez-Carpinell et at Color memory matching : time effect and other factors. Color Res Appl 1998;23:234-247], we can de duce the following. (a) For anomalous trichromat populations, as with a nor mal one, we find significant differences between simultaneous and successiv e color matching p < 0.05. (b) If we consider the average of all the colors , we find that, while for anomalous populations there is no influence of de lay time on the remembered mean color, for normal observers there is a sign ificant difference between 15 s and the rest of the times, p < 0.03. (c) if we consider the mean of all delay times, we find that, while normal trichr omat observers do not remember yellow as well as dark orange, dark blue, an d violet, in anomalous populations this happens only between yellow and dar k orange. (d) By memory we find for some reference tests a correlation betw een the behavior in some of the components of color difference and the obse rvers' type of color vision anomaly. (C) 2001 John Wiley & Sons, Inc.