Regional Differences in Brain Structure Underlying Childhood Stuttering Persistence and Recovery: An MRI Study
Chang, Soo-Eun
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Permalink
https://hdl.handle.net/2142/85210
Description
Title
Regional Differences in Brain Structure Underlying Childhood Stuttering Persistence and Recovery: An MRI Study
Author(s)
Chang, Soo-Eun
Issue Date
2005
Doctoral Committee Chair(s)
Ambrose, Nicoline G.
Department of Study
Speech and Hearing Science
Discipline
Speech and Hearing Science
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Health Sciences, Speech Pathology
Language
eng
Abstract
CWPS and CWRS exhibited similar structural anomalies when contrasted to CWNS in several cortical, subcortical, and cerebellar regions critical for speech motor sequencing and sensorimotor integration, such as the left inferior frontal area, bilateral temporoparietal regions, as well as several areas in the basal ganglia and thalamus. When CWPS and CWRS were compared, the latter often exhibited intermediate tissue volume compared to the other two groups in the regions noted above. Results point to a structural basis for stuttering that is likely associated with inefficient function of cortical, subcortical, and cerebellar structures that normally work together in a coordinated fashion to achieve timely and efficient sensorimotor processing. Stuttering recovery, on the other hand, appears to involve maturation of these structures to resemble tissue growth in normally fluent children, enabling normalization of sensorimotor function, and hence, fluent speech production.
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