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Communicative functioning in individuals with Angelman syndrome: a comparative study.
R Didden1, H Korzilius, P Duker
1Department of Special Education, Radboud University, 6500 HE Nijmegen, The Netherlands. r.didden@ped.kun.nl
Disability and Rehabilitation
|October 30, 2004
Summary
Individuals with Angelman syndrome (AS) show a distinct communication pattern, with manding skills more developed than tacting or echoing. This suggests a potential communicative phenotype in AS.
Area of Science:
- Linguistics
- Developmental Psychology
- Genetics
Background:
- Angelman syndrome (AS) is a rare neurodevelopmental disorder.
- Expressive communication deficits are a hallmark of AS.
- Understanding the communicative phenotype is crucial for targeted interventions.
Purpose of the Study:
- To assess and characterize expressive communication in individuals with Angelman syndrome.
- To compare the communicative functioning of individuals with AS to a control group.
Main Methods:
- The Verbal Behaviour Assessment Scale (VerBAS) was used to evaluate communicative functioning.
- 109 individuals with AS were compared to 117 individuals with mixed etiologies.
- Within-group and between-groups analyses were conducted.
Main Results:
- In individuals with AS, manding was significantly more developed than tacting and echoing.
- Individuals with AS had lower scores in tacting and echoing compared to the control group.
- Lower VerBAS scores were associated with epilepsy, anticonvulsant medication, and profound developmental disabilities.
Conclusions:
- The findings suggest a specific communicative phenotype in individuals with Angelman syndrome.
- The pattern of verbal behavior in AS differs from other developmental etiologies.
- Further research is warranted to explore the implications of this communicative phenotype.