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. Author manuscript; available in PMC: 2014 May 1.
Published in final edited form as: J Opt Soc Am A Opt Image Sci Vis. 2014 Apr 1;31(4):A283–A292. doi: 10.1364/JOSAA.31.00A283

Fig. 3.

Fig. 3

Fig. 3a. Yoked Hue Pairs: Mean blue-green settings for 13 observers as a function of the contrast of a uniform-hue array (leftmost points) or the hue-angle difference of pairs with a fixed contrast of 80 (rightmost points). Error bars = ±1 SEM.

Fig. 3b. Yoked Hue Pairs: Average standard deviation of the individual’s settings for the same stimuli, based on 4 repeated settings per condition. Error bars = ±1 SEM. Dashed lines – predicted difference in the standard deviation of the settings for the uniform vs. 2-component arrays if the errors in judging the two components are independent and additive.