Interarticulator coordination in children with and without cerebral palsy

Area of Science:

• Speech-language pathology
• Neuroscience
• Biomedical engineering

Background:

• Cerebral palsy (CP) often affects motor control, influencing speech production.
• Understanding interarticulator coordination is crucial for assessing speech motor disorders.

Purpose of the Study:

• To investigate changes in interarticulator coordination in children with spastic CP compared to typically developing peers.
• To examine how articulatory and linguistic demands of speaking tasks affect speech coordination.
• To correlate measures of interarticulator coordination with speech intelligibility.

Main Methods:

• Cross-correlation analysis of upper lip, lower lip, and jaw movements.
• Involved 12 children with spastic CP and 12 typically developing peers.
• Compared coordination across sentence production, diadochokinetic, and syllable repetition tasks.

Main Results:

• Children with CP exhibited reduced spatial coupling (upper/lower lips) and temporal coupling (all articulators).
• All participants showed greater interarticulator coordination during sentence tasks versus repetitive tasks.
• Interarticulator coordination measures correlated with intelligibility in children with CP.

Conclusions:

• Children with CP demonstrate distinct patterns of reduced interarticulator coordination.
• Speech task demands significantly influence articulatory coordination in both groups.
• Interarticulator coordination is a relevant factor for speech intelligibility in pediatric CP.