Your neighbors define your value: spatial bias in number comparison
Several chronometric biases in numerical cognition have informed our understanding of a mental number line (MNL). Complementing this approach, we investigated spatial performance in a magnitude comparison task. Participants located the larger or smaller number of a pair on a horizontal line representing the interval from 0 to 10. Experiments 1 and 2 used only number pairs one unit apart and found that digits were localized farther to the right with â€œselect largerâ€ instructions than with â€œselect smallerâ€ instructions. However, when numerical distance was varied (Experiment 3), digits were localized away from numerically near neighbors and towards numerically far neighbors. This neighborhood effect reveals context -specific distortions in number representation not previously noticed with chronometric measures.