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Auditory Rate Perception Displays a Positive Serial Dependence
Aysha Motala1,2, Huihui Zhang3,4, David Alais3
1The Brain and Mind Institute, University of Western Ontario, London, Ontario, Canada.
I-Perception
|January 11, 2021
Summary
Auditory rate perception shows central tendency, where reproduced rates lean towards the average. Serial dependence effects also occur, influenced by both the stimulus and the participant's response.
Area of Science:
- Auditory Perception
- Psychophysics
- Cognitive Neuroscience
Background:
- Auditory rate perception is crucial for understanding temporal information.
- Previous research on interval timing suggests a central tendency effect.
- Serial dependence, a trial-to-trial influence on perception, is observed in various sensory domains.
Purpose of the Study:
- To investigate the presence of central tendency in auditory rate perception.
- To determine if auditory rate perception exhibits serial dependence.
- To differentiate between stimulus- and response-related components of serial dependence.
Main Methods:
- A reproduction task was used to assess perceived auditory rate.
- Participants reproduced presented auditory rates.
- Serial dependency was analyzed by examining the relationship between current and preceding trial reproductions.
Main Results:
- Reproduced rates were linearly related to presented rates, but significantly overestimated them, indicating central tendency.
- A positive serial dependence was observed in two conditions.
- Withholding responses revealed a negative dependency, while making responses introduced a positive, postperceptual effect.
Conclusions:
- Auditory rate perception is characterized by a central tendency effect.
- Serial dependence in auditory rate perception has both perceptual (negative) and postperceptual (positive) components.
- These findings highlight the complex interplay of factors influencing temporal perception in audition.
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