Infant-Mother Acoustic-Prosodic Alignment and Developmental Risk.
Amanda Seidl1, Alejandrina Cristia2, Melanie Soderstrom3
1Speech, Language, and Hearing Sciences, Purdue University, West Lafayette, IN.
Summary
Automated analysis of infant vocalizations shows promise for identifying developmental concerns. Measures of daily vocalizations and conversational turns, not acoustic-prosodic alignment, predict later developmental progress in infants.
Area of Science:
- Developmental Psychology
- Speech-Language Pathology
- Computational Linguistics
Background:
- Early infant speech production is a potential early marker for communicative and language disorders, including autism spectrum disorder.
- Familial risk is a key indicator for developmental progress and potential concerns.
Purpose of the Study:
- To investigate the relationship between acoustic-prosodic alignment and automated measures of infant vocalization with developmental risk status.
- To determine if these measures predict developmental progress at 36 months of age.
Main Methods:
- Utilized daylong audio recordings from high- and low-risk infant-mother dyads.
- Applied automated acoustic analyses to examine vocalizations and conversational turns.
- Assessed developmental progress at 36 months of age.
Main Results:
- No significant difference in acoustic-prosodic alignment was found between high- and low-risk groups.
- Acoustic-prosodic alignment did not predict later developmental progress.
- Automated measures of daily vocalizations and conversational turns were associated with developmental progress.
Conclusions:
- Automated measures of infant vocalizations from daylong recordings may serve as early identification tools.
- These measures show potential for identifying later developmental progress or concerns.
- Further research is warranted to validate these findings.
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