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Semantic priming from McGurk words: Priming depends on perception
Josh Dorsi1,2, Rachel Ostrand3, Lawrence D Rosenblum4
1Department of Psychology, University of California, Riverside, 900 University Ave, Riverside, CA, 92521, USA. jdorsi@pennstatehealth.psu.edu.
Attention, Perception & Psychophysics
|May 8, 2023
Summary
The McGurk effect shows how vision changes speech perception. Our study suggests that perceived words, not just auditory ones, influence lexical access, relying on integrated multisensory information.
Area of Science:
- Cognitive Psychology
- Auditory Perception
- Multisensory Integration
Background:
- The McGurk effect demonstrates visual influence on auditory speech perception.
- Previous research suggested auditory signals alone inform lexical access before full integration.
Purpose of the Study:
- To investigate the timing of multisensory processes in the McGurk effect.
- To determine if perceived or auditory information drives lexical access.
Main Methods:
- Replication of Ostrand et al. (2016) design using optimized McGurk stimuli.
- Lexical decision task with incongruent auditory and visual speech primes.
- Analysis of semantic priming effects.
Main Results:
- Perceived words, not auditory, typically induced semantic priming.
- Priming strength correlated with the magnitude of the McGurk effect.
- Findings contrast with previous research suggesting auditory-only lexical access.
Conclusions:
- Lexical access utilizes integrated multisensory information, reflecting perceived speech.
- The dominant unimodal signal for lexical access depends on the final perception.
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