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. 2017 Jan;20(1):1-13.
doi: 10.3109/17518423.2015.1022809. Epub 2015 Apr 23.

Interarticulator coordination in children with and without cerebral palsy

Ignatius S B Nip  1
Affiliations

Interarticulator coordination in children with and without cerebral palsy

Ignatius S B Nip. Dev Neurorehabil. 2017 Jan.

Abstract

The current study investigates how interarticulator coordination changes across speaking tasks varying in articulatory and linguistic demands for children with CP and their typically-developing peers. Articulatory movements from 12 children with spastic CP (7M, 5F, 4-15 years of age) and 12 typically-developing age- and sex-matched peers were cross-correlated to determine the degree of spatial and temporal coupling between the upper lip and jaw, lower lip and jaw, and upper and lower lips. Spatial and temporal coupling were also correlated with intelligibility. Results indicated that children with CP have reduced spatial coupling between the upper and lower lips and reduced temporal coupling between all articulators as compared to their typically-developing peers. For all participants, sentences were produced with the greatest degree of interarticulator coordination when compared to the diadochokinetic and syllable repetition tasks. Measures of interarticulator coordination were correlated with intelligibility for the speakers with CP.

Keywords: Cerebral palsy; dysarthria; intelligibility; speech motor control.

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Conflict of interest statement

Declaration of interest: The author report no conflicts of interest. The author alone is responsible for the content and writing of the article.

Figures

Figure 1
Figure 1
Example of the upper lip, lower lip, and jaw movement traces during the production of /ΛbΛ/.
Figure 2
Figure 2
Means and standard errors of the spatial coupling of the upper lip and jaw for the diadochokinetic (DDK), syllable and sentence tasks.
Figure 3
Figure 3
Means and standard errors of the spatial coupling of the lower lip and jaw for the diadochokinetic (DDK), syllable and sentence tasks.
Figure 4
Figure 4
Means and standard errors of the spatial coupling of the upper and lower lips for the diadochokinetic (DDK), syllable and sentence tasks.
Figure 5
Figure 5
Means and standard errors of the temporal coupling of the upper lip and jaw for the diadochokinetic (DDK), syllable and sentence tasks.
Figure 6
Figure 6
Means and standard errors of the temporal coupling of the lower lip and jaw for the diadochokinetic (DDK), syllable and sentence tasks.
Figure 7
Figure 7
Means and standard errors of the temporal coupling of the upper and lower lips for the diadochokinetic (DDK), syllable and sentence tasks.
See this image and copyright information in PMC

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