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ERIC Number: EJ1043556
Record Type: Journal
Publication Date: 2014-Oct
Pages: 13
Abstractor: As Provided
ISSN: ISSN-1092-4388
Predicting Speech Intelligibility with a Multiple Speech Subsystems Approach in Children with Cerebral Palsy
Lee, Jimin; Hustad, Katherine C.; Weismer, Gary
Journal of Speech, Language, and Hearing Research, v57 n5 p1666-1678 Oct 2014
Purpose: Speech acoustic characteristics of children with cerebral palsy (CP) were examined with a multiple speech subsystems approach; speech intelligibility was evaluated using a prediction model in which acoustic measures were selected to represent three speech subsystems. Method: Nine acoustic variables reflecting different subsystems, and speech intelligibility, were measured in 22 children with CP. These children included 13 with a clinical diagnosis of dysarthria (speech motor impairment [SMI] group) and 9 judged to be free of dysarthria (no SMI [NSMI] group). Data from children with CP were compared to data from age-matched typically developing children. Results: Multiple acoustic variables reflecting the articulatory subsystem were different in the SMI group, compared to the NSMI and typically developing groups. A significant speech intelligibility prediction model was obtained with all variables entered into the model (adjusted R[superscript 2] = 0.801). The articulatory subsystem showed the most substantial independent contribution (58%) to speech intelligibility. Incremental R[superscript 2] analyses revealed that any single variable explained less than 9% of speech intelligibility variability. Conclusions: Children in the SMI group had articulatory subsystem problems as indexed by acoustic measures. As in the adult literature, the articulatory subsystem makes the primary contribution to speech intelligibility variance in dysarthria, with minimal or no contribution from other systems.
American Speech-Language-Hearing Association (ASHA). 10801 Rockville Pike, Rockville, MD 20852. Tel: 800-638-8255; Fax: 301-571-0457; e-mail:; Web site:
Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: National Institute on Deafness and Other Communication Disorders (NIDCD); National Institute of Child Health and Human Development (NIH)
Authoring Institution: N/A
Grant or Contract Numbers: K23DC007114; R01DC009411; P30HD03352