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Relative Time Compression for Slow-Motion Stimuli through Rapid Recalibration
Saya Kashiwakura1, Isamu Motoyoshi2
1Department of Integrated Sciences, The University of TokyoTokyo, Japan.
Frontiers in Psychology
|August 4, 2017
Summary
Slow-moving visual stimuli can appear shorter than static ones, contrary to previous findings. This time compression effect suggests prior visual exposure influences perceived duration.
Area of Science:
- Psychophysics
- Visual Perception
- Cognitive Neuroscience
Background:
- Previous psychophysical studies indicate moving stimuli are perceived as lasting longer than static stimuli.
- The perceived duration of visual stimuli is a key aspect of temporal cognition.
Purpose of the Study:
- To investigate circumstances where slow-moving stimuli are perceived as shorter than static stimuli.
- To explore the influence of prior visual stimulus exposure on duration perception.
Main Methods:
- Participants viewed natural movies and artificial drifting gratings at various speeds (static, slow, fast).
- Observers compared the perceived duration of test stimuli against original-speed comparison stimuli.
- A control condition used a static white disk to mitigate repetitive motion exposure.
Main Results:
- Fast-moving stimuli were perceived as longer than static and slow stimuli, consistent with prior research.
- Slow-moving stimuli were perceived as shorter (time-compressed) than static stimuli.
- This time compression effect diminished when repetitive motion was controlled using a static comparison stimulus.
Conclusions:
- Perceived duration is modulated by contextual effects from preceding visual stimuli.
- Human time estimation recalibrates rapidly through adaptation to prior stimuli.
- The 'diet' of visual input significantly impacts subjective time perception.
