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Developmentally enhanced visual reliability reduces susceptibility to the sound-induced flash illusion: Evidence from
Aijun Wang1, Jiwen Zhang2, Guanying Liu3
1Department of Psychology, Faculty of Education, Guangxi Normal University, Guilin, China; Guangxi College and University Key Laboratory of Cognitive Neuroscience and Applied Psychology, Guilin, China.
Consciousness and Cognition
|August 13, 2025
Summary
Developmental improvements in audiovisual temporal integration are driven by enhanced visual reliability, not changes in binding tendency. This study clarifies how children and adults process multisensory information over time.
Area of Science:
- Cognitive Neuroscience
- Developmental Psychology
- Sensory Integration
Background:
- Multisensory integration relies on binding tendency and sensory reliability.
- The developmental trajectory of these factors in temporal audiovisual integration is not well understood.
Purpose of the Study:
- To investigate the distinct developmental contributions of binding tendency and sensory reliability to temporal audiovisual integration.
- To compare performance across early school-aged children, mid-to-late school-aged children, and adults.
Main Methods:
- Utilized the sound-induced flash illusion (SiFI) and its reverse variant (FiSI).
- Employed Bayesian causal inference modeling to analyze performance.
- Compared audiovisual integration across three age groups: early school-aged children, later school-aged children, and adults.
Main Results:
- Binding tendency (prior expectations) remained stable across all age groups.
- Adults showed significantly lower visual precision compared to early school-aged children.
- No significant differences in prior expectations were observed between age groups.
Conclusions:
- Developmental improvements in audiovisual temporal integration are primarily due to enhanced visual reliability.
- Changes in binding tendency do not significantly contribute to these developmental improvements.
- Visual precision, a key aspect of sensory reliability, improves with age, impacting temporal integration.
