Temporal change in numerical magnitude modulates time perception K Sasaki1, K Yamamoto2, K Miura1 |
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1Kyushu University, Japan |
| Previous studies have revealed that temporal change in stimulus characteristics (e.g., moving speed) modulates time perception [Matthews, 2011, Journal of Experimental Psychology: Human Perception and Performance, 37(5), 1617-1627; Sasaki et al, 2013, Perception, 42 (2), 198-207]. However, it is still unclear whether this sequence effect can also be caused by other visual features such as number. In the present study, we examined the effect of temporal change in numerical magnitude on time perception by using a temporal reproduction task. In the experiments, symbolic (digit) and non-symbolic (dot) numerosities were presented sequentially in order of increasing or decreasing magnitude. The physical duration of the stimulus sequence was 900 or 1,400 ms. The results showed that, in the 1,400-ms condition, the decreasing sequence of the digits was perceived to last longer than the increasing sequence, while this effect was not found in the 900-ms condition. On the other hand, the decreasing sequence of the dots was perceived to last longer than the increasing sequence in both 900-ms and 1,400-ms conditions. These results suggest that temporal change in numerical magnitude modulates time perception. The difference of the sequence effects between symbolic and non-symbolic numerosities is discussed. |
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