Abstract
ABSTRACT It’s been reported that the presentation of auditory flickering stimuli (click trains) induces time dilation. However, this effect could be associated with the presence rather than the discontinuity of the auditory signal. We hypothesized that based on the internal clock models, flickering would further manipulate the speed of the internal clock. To this end, we examined the impact of sandwiched events (click train, auditory continuous stimulus, or no sound) and a very short gap (150 ms) between target and comparison interval) on duration perception. Our results showed that regardless of the type of the sound, an addition of an auditory stimulus improves the accuracy and response time of comparison judgment, which can be interpreted as a result of increasing the speed of the pacemaker. Besides, click train has a stronger footprint on time dilation than a continuous sound. We conclusively ascertain that the effect of dilation does not wear off within the applied gap.
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