This postscript to the Transcending Zombies series is primarily a follow-up to the remarks on Raffman-style nonconceptualism. Would my objection to the Raffman-style case against conceptualism be defeated by an experimental design that tried to better control for possible context effects of the presentations of the colors? The sort of redesign I here have in mind might go as follows. The stimuli presented in each distinct presentation in the diachronic discrimination case would be one of figures 1 and 2.
The task put to the subject is to make a “same as before, yes or no?” judgment about colors appearing on the right side of each display. Synchronic discrimination tasks could use just one of figures 1 and 2 and ask, say of figure 1, if the left and right regions contain the same color.
Such an experimental design is aimed at avoiding the accusation that the colors presented in the synchronic and diachronic contexts are colors presented in different contexts and it thus may not be assumed that there is a color-appearance that is constant across contexts. In this new experiment, the color context of the right-hand color in figure 1 is arguably the same as the color context of the left-hand color in figure 2 since figures 1 and 2 are just spatial rotations of each other.
Does such an experimental design help to defeat the conceptualist? One point in favor of the conceptualist is that in the experiments using figures 1 and 2, there may no longer be a failure of diachronic discrimination. The subject, in being presented with figure 1, is in a position to conceptualize the color on the right as the lighter of the two. Further, the subject may re-conceptualized the diachronic task as, in seeing fig 2 after fig 1, judging whether the lighter of the two has changed its relative spatial location.