Figure 4.
Experiment 2. Dominance level as a function of the different configurations of the SQM in the spatiotopic (dark gray) and retinotopic (gray dashed) conditions. In V-AV R[V], participants were instructed to report the central vernier offset direction; in V-AV R[AV], participants were instructed to report the anti-vernier offset direction. Performances were around 70% to 75% when only one line was offset (V and AV). Because the data are plotted in accordance with the central line offset, the dominance level in the AV condition is around 25%. In the spatiotopic condition, dominances in both the V-AV R[V] and V-AV R[AV] conditions were around 50%, indicating that observers were not able to report the individual offsets. In the retinotopic condition, observers reported the individual offsets in V-AV at a similar level as when only one offset was presented. ns, pHolm > 0.05; *pHolm ≤ 0.05. Individual data are presented in the Supplementary Material (Supplementary Figure S5).