Figure 1.
Schematic overview of the predictions.
Predictions derived from the direct mapping account (blue arrows) and the Verguts et al. (2005) model (orange arrows). The subject's task is to compare the centrally presented number to 5. Dark (blue or orange) arrows represent the number line congruent mapping “if smaller press left, if larger, press right”; light (blue or orange) arrows represent the number line incongruent mapping “if smaller press right, if larger press left”.
Figure 2.
The effect of numerical distance (1 to 4) and response mapping (number line congruent or incongruent and the mean of these two mappings) on total times (a), reaction times (b) and movement times (c). Note that the Y-axes have the same scale but a different range in the three panels.
Figure 3.
The effect of numerical distance (1 to 4) and response mapping (number line congruent or incongruent and the mean of these two mappings) on deviation from the midline in pixels. Only the slices for which a significant distance effect was found (40% to 90% of the trajectory) are plotted. Note that the Y-axes have the same scale but a different range for the different slices.