Abstract
Time shrinking is an illusion of time perception. This illusion takes place in stimulus patterns of three successive sound bursts (markers) of equal duration marking two empty time intervals, the preceding time interval (P) and the standard time interval (S). When S is longer than P, S is often underestimated. In this study, we examined whether the duration of the bursts (in this case, pure tones) could affect this illusion. Time shrinking always took place when S−P was less than or equal to 60 ms, and the marker duration did not affect the amount of underestimation of S in this range. However, the illusion took place only for the shortest marker duration of 20 ms when S−P=80 ms. The results roughly agreed with previous data. [Work supported by JSPS and 21st Century COE, Kyushu University.]
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