Relationship between lexicon and grammar in children and youth who use augmentative and alternative communication.
Augment Altern Commun
; 39(4): 293-301, 2023 12.
Article
en En
| MEDLINE
| ID: mdl-37671918
ABSTRACT
The present study investigated the relationship between lexicon and grammar in individuals who use graphic symbol-based aided augmentative and alternative communication (AAC). Data came from 60 transcripts of generalization sessions that were part of two previous intervention studies, aimed at improving the expressive vocabulary and grammar of 12 children and youth who used graphic symbol-based AAC. The specific aims of the current study were to (a) describe vocabulary composition across different levels of expressive vocabulary and (b) analyze the relationship between global measures of expressive vocabulary and the use of grammar in individuals who use aided AAC. A series of multiple linear mixed effect regression analyses showed a positive predictive association between overall vocabulary size and the use of closed-class words, and a positive relationship between the use of verbs and the use of closed-class words. Additionally, the use of verbs had a significant positive association with the use of inflectional morphology, while the use of nouns did not. Theoretical and practical implications of these findings are discussed.
Palabras clave
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Equipos de Comunicación para Personas con Discapacidad
/
Trastornos de la Comunicación
Tipo de estudio:
Prognostic_studies
Límite:
Adolescent
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Child
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Humans
Idioma:
En
Año:
2023
Tipo del documento:
Article