Auditory Effects on Touch Perception During Speech
Author Information
Author(s): François Champoux, Douglas M. Shiller, Robert J. Zatorre, Kiebel Stefan J.
Primary Institution: Centre de recherche interdisciplinaire en réadaptation du Montréal métropolitain/Institut Raymond-Dewar, Montreal, Quebec, Canada
Hypothesis
Does auditory feedback during speech production influence tactile perception?
Conclusion
The study found that amplitude modulation of auditory feedback during speech production increases tactile sensation in the lips and throat.
Supporting Evidence
- Participants reported increased tactile sensation when auditory feedback was amplitude modulated during speech.
- Frequency modulation did not produce a significant change in tactile perception.
- The effect was specific to voiced sounds and did not occur with unvoiced fricatives.
Takeaway
When people talk, the sounds they hear can change how they feel vibrations on their lips and throat, especially when the sound gets louder.
Methodology
Thirty-two healthy French-speaking individuals participated in experiments where they produced speech sounds while their auditory feedback was manipulated.
Potential Biases
Potential bias from directing attention to specific tactile regions during the tasks.
Limitations
The study focused only on specific phonemes and may not generalize to all speech sounds.
Participant Demographics
32 French-speaking healthy individuals (18 females, 14 males; mean age: 25)
Statistical Information
P-Value
p<0.001
Statistical Significance
p<0.001
Digital Object Identifier (DOI)
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