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Experiment 1. (A and B) Mean reaction times (A) and mean error rates (B) ± SE as functions of the ratio of the number of circles in the two arrays, in three different conditions: (i) difference in circle size congruent with (in the same direction as) numerical difference, (ii) difference in circle size incongruent with (opposite to) numerical difference, and (iii) no difference in circle size (Neutral). (C) Mean reaction time as function of circle diameter ratio ± SE.
