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Down syndrome phonology: developmental patterns and intervention strategies
1Department of Speech and Hearing Sciences, University of Washington, USA. csg@u.washington.edu
Summary
Children with Down syndrome experience delayed phonological development, impacting speech intelligibility. This paper reviews underlying deficits and effective intervention strategies for improved communication outcomes.
Area of Science:
- Speech-Language Pathology
- Developmental Psychology
- Genetics
Background:
- Children with Down syndrome exhibit significant delays in acquiring phonological systems.
- Prelinguistic development may appear typical, but delays emerge in speech production and vocabulary acquisition.
- Speech intelligibility issues can persist into adolescence, hindering communication.
Purpose of the Study:
- To summarize research on phonological development in children with Down syndrome.
- To identify underlying deficits affecting speech acquisition.
- To describe intervention strategies for various stages of phonological development.
Main Methods:
- Review of existing literature on Down syndrome phonology.
- Analysis of phonological characteristics across developmental stages (prelinguistic to conversational speech).
- Examination of factors influencing phonological development.
Main Results:
- Delayed acquisition of phonological rules and productive vocabulary.
- Challenges in transitioning from prelinguistic vocalizations to meaningful speech.
- Variability in intelligibility, with some individuals experiencing persistent difficulties.
Conclusions:
- Phonological development in Down syndrome is characterized by delays and specific challenges.
- Early and targeted intervention is crucial for improving speech and communication.
- Understanding underlying deficits informs effective therapeutic approaches.
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