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The Relationship Between Auditory-Motor Integration, Interoceptive Awareness, and Self-Reported Stuttering Severity
M Florencia Assaneo1, Pablo Ripollés2,3,4, Seth E Tichenor5
1Institute of Neurobiology, National Autonomous University of Mexico, Querétaro, Mexico.
Frontiers in Integrative Neuroscience
|May 23, 2022
Summary
Stuttering involves timing differences, but auditory-motor integration and interoception abilities are similar in stutterers and non-stutterers. However, these abilities independently predict different aspects of stuttering severity.
Area of Science:
- Neuroscience
- Speech-language pathology
- Auditory-motor integration
Background:
- Stuttering is a neurodevelopmental speech disorder linked to motor timing deficits.
- Timing-related neurodevelopmental disorders often involve impaired auditory-motor integration and interoception.
- The relationship between these abilities and stuttering is not well understood.
Purpose of the Study:
- To investigate the interplay between speech auditory-motor synchronization, interoceptive awareness, and stuttering severity.
- To determine if auditory-motor integration and interoception are related in individuals who stutter.
- To examine how these abilities correlate with different measures of stuttering severity.
Main Methods:
- Utilized remotely delivered assessments to measure speech auditory-motor synchronization (as a proxy for auditory-motor integration).
- Assessed interoceptive awareness using standardized methods.
- Correlated these measures with self-reported stuttering severity and external perceptions of stuttering.
Main Results:
- Stutterers and non-stutterers demonstrated comparable auditory-motor integration and interoceptive abilities.
- Speech auditory-motor synchrony and interoceptive awareness were not significantly correlated.
- Speech synchrony inversely correlated with perceived stuttering severity (by others), while interoceptive awareness inversely correlated with self-reported stuttering impact.
Conclusions:
- Stuttering appears to be a heterogeneous disorder with distinct underlying mechanisms.
- Auditory-motor integration and interoception represent potentially independent factors contributing to stuttering.
- These findings suggest separate sources of timing differences contributing to the varied presentation of stuttering.
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