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No "Self" Advantage for Audiovisual Speech Aftereffects
Maria Modelska1, Marie Pourquié1,2, Martijn Baart1,3
1BCBL - Basque Center on Cognition, Brain and Language, Donostia, Spain.
Frontiers in Psychology
|April 11, 2019
Summary
This study investigated if hearing and seeing oneself offers advantages in speech perception. Researchers found no "self" advantage for phonetic recalibration or selective adaptation, suggesting general learning mechanisms.
Area of Science:
- Cognitive Science
- Auditory Perception
- Speech Processing
Background:
- The perception of speech involves integrating auditory and visual information.
- Previous research suggests potential benefits when individuals perceive their own speech (self-perception) compared to others'.
Purpose of the Study:
- To determine if a "self" advantage exists for phonetic recalibration and selective adaptation in speech perception.
- To investigate the influence of lip-read information on auditory perception, specifically immediate capture.
Main Methods:
- Phonetic recalibration and selective adaptation tasks were employed to assess cross-modal learning and contrastive effects.
- On-line effects of lip-read information on auditory perception were measured.
- Bayesian statistics were used to analyze the data and assess evidence for or against a "self" advantage.
Main Results:
- Both phonetic recalibration and selective adaptation aftereffects were observed.
- Lip-read information demonstrated an on-line effect on auditory perception (immediate capture).
- No significant "self" advantage was found for any of the tested tasks.
Conclusions:
- The findings support the view that phonetic recalibration is a general learning mechanism.
- The results suggest that speech adaptation relies on low-level auditory/acoustic features rather than self-specific processing.