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Auditory feedback perturbation in children with developmental speech sound disorders
Hayo Terband1, Frits van Brenk2, Anniek van Doornik-van der Zee3
1Utrecht Institute of Linguistics-OTS, Utrecht University, Utrecht, The Netherlands; Centre for Language and Cognition (CLCG), University of Groningen, Groningen, The Netherlands.
Children with speech sound disorders (SSD) struggle to adjust speech production to altered auditory feedback, unlike typically developing peers. This suggests impaired auditory-motor integration may be crucial for SSD.
Area of Science:
- Speech-language pathology
- Auditory neuroscience
- Motor control
Background:
- Speech sound disorders (SSD) are linked to auditory and speech motor function deficits.
- Understanding auditory feedback processing is key to understanding SSD development.
Purpose of the Study:
- To investigate auditory feedback compensation and adaptation in children with SSD.
- To compare these abilities in children with SSD versus typically developing children.
Main Methods:
- 17 typically developing children and 11 children with SSD participated.
- Auditory feedback of vowel formants was perturbed in real-time during speech production.
- A five-step paradigm assessed responses to auditory perturbation.
Main Results:
- Typically developing children compensated and adapted to auditory perturbation.
- Children with SSD amplified the perturbation, indicating difficulty compensating.
- Compensation ability correlated with oral motor non-word repetition skills.
Conclusions:
- Children with SSD can detect and adapt to auditory feedback changes but not compensate.
- Impaired auditory-motor integration is a potential key factor in SSD.
- Individual differences in auditory-motor processing exist within the SSD group.
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