Temporal change in numerical magnitude influences time perception(Summary of Awarded Presentation at the 31st Annual Meeting)

抄録

We examined the effect of temporal change in numerical magnitude on time perception. In two experiments, we measured perceived duration of numerical sequences, in which the numerical magnitude of digits (Experiment 1) or the number of dots (Experiment 2) increased or decreased over time. The presentation durations of the numerical sequences were sub-second and supra-second. Experiments 1 and 2 showed that the perceived duration of the decreasing sequence was longer than that of the increasing sequence for any presentation duration except the sub-second duration of Experiment 1. These results suggest that temporal change in numerical magnitude influences time perception, but it takes a certain length of presentation duration for the effect to occur when the magnitude is represented by symbolic numerosities such as digits.