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Related Experiment Video

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Ultrasound Images of the Tongue: A Tutorial for Assessment and Remediation of Speech Sound Errors

Ultrasound Images of the Tongue: A Tutorial for Assessment and Remediation of Speech Sound Errors

Published on: January 3, 2017

Structural brain differences in school-age children with residual speech sound errors.

Jonathan L Preston¹, Peter J Molfese², W Einar Mencl²

¹Haskins Laboratories, 300 George St, Suite 900, New Haven, CT 06511, United States; Department of Communication Disorders, Southern Connecticut State University, New Haven, CT, United States.

Brain and Language

|December 18, 2013

Summary

Children with speech sound errors show distinct brain structures, including differences in gray and white matter volumes in areas crucial for speech processing. These findings suggest potential delays in brain development or altered neural network formation.

Keywords:

Children Speech sound disorders Speech sound errors Structural MRI

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Area of Science:

Neuroscience
Developmental Psychology
Speech-Language Pathology

Background:

Speech sound errors can persist into school age, impacting communication.
Understanding the neural underpinnings of these errors is crucial for targeted interventions.
Previous research suggests potential brain differences, but specific structural correlates require further investigation.

Purpose of the Study:

To identify structural brain differences in school-age children with residual speech sound errors.
To compare gray and white matter volumes between children with and without speech sound errors.
To investigate if brain regions involved in speech production and perception differ between groups.

Main Methods:

Voxel-based morphometry (VBM) analysis was employed.
Structural magnetic resonance imaging (MRI) data were acquired for all participants.
Comparison involved 23 children with speech sound errors and 54 typically speaking controls, matched for age, oral language, and IQ.

Main Results:

The speech sound error group exhibited greater gray matter volumes in the bilateral superior temporal gyrus compared to controls.
Increased white matter volume was observed in the corpus callosum for the speech sound error group.
Reduced white matter volume was found in the right lateral occipital gyrus in children with speech sound errors.

Conclusions:

Structural brain differences in key speech processing regions are associated with residual speech sound errors.
Findings may indicate delayed neuronal pruning or atypical development of speech perception and production networks.
These results highlight the importance of neurodevelopmental factors in persistent speech sound disorders.