Abstract
It has been widely demonstrated that a prolonged adaptation to a relatively long or short stimulus leads to a robust repulsive duration aftereffect. However, little is known about the rapid adaptation to stimulus duration. In this study, we investigated whether the duration aftereffect could also be induced by short-term adaptation to stimuli of both sub- and supra-second durations. To control for the internal reference for duration judgment, participants were adapted to a stimulus of medium duration, and then tested with both longer and shorter stimuli. We found that the duration aftereffect was only observed after long-term adaptation to stimuli of both sub- and supra-second durations, which suggests that the exposure time to the adaptor is a fundamental factor in determining the duration aftereffect. Our findings offer further evidence of the duration aftereffect, which in this study was dissociated from the anchor effect and high-level aftereffects.
Highlights
Our perception of the world is closely related to how we perceive the temporal properties of events
We further examined whether the duration aftereffect could be induced by both long- and short-term adaptations to stimuli of both sub- and supra-second durations after controlling for the change in internal reference for duration judgment
The remaining reproduction durations were tested with a one-way analysis of variance (ANOVA) with test duration (200, 300, 400, 600, 700, or 800 ms) as a repeated-measures factor with six levels
Summary
Our perception of the world is closely related to how we perceive the temporal properties of events. Adaptation is a common property of almost all nervous systems, which has served as a powerful tool to uncover sensory processing. After repetitive exposure to a relatively long sensory event, a subsequent stimulus of intermediate duration is perceived as being of shorter duration, while after repetitive exposure to a relatively short sensory event, a subsequent stimulus of intermediate duration is perceived as being longer. This duration aftereffect has received much attention in recent years
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