Revista CEFAC
https://revistacefac.org.br/article/doi/10.1590/1982-0216/202224312021
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Are dyslexia and developmental language disorder isolated or comorbid conditions? An integrative review

Dislexia e transtorno do desenvolvimento da linguagem são quadros isolados ou comórbidos? Uma revisão integrativa

Larissa Mariane M Andrade Macedo; Anna Irenne de Lima Azevedo; Bárbara Louise Costa Messias; Maria Elizabeth Job de Vasconcelos; Cíntia Alves Salgado Azoni

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Abstract

Purpose: to gather scientific evidence on the linguistic skill profile in developmental dyslexia and developmental language disorder to better understand possible comorbid or isolated conditions.

Methods: an integrative review of the literature. The search was conducted in SciELO, ERIC, LILACS, and PubMed. The inclusion criteria were as follows: 1) studies published and available in open-access national and international journals in full text; 2) addressing the topic in the last 10 years; 3) in English and/or Portuguese.

Literature Review: the search retrieved 654 articles, the final sample comprising 10, 5 of which agreed with the hypothesis that dyslexia and developmental language disorder can be comorbid disorders, impairing reading, writing, and phonological awareness. The other studies described broader language deficits in children with developmental language disorder alone, affecting language decoding and comprehension, whereas deficits in dyslexia are more associated with phonological processing.

Conclusion: 
there is no consensus on whether dyslexia and developmental language disorders occur simultaneously in children. However, both pose risks to reading comprehension and school performance.

Keywords

Dyslexia, Specific Language Disorder, Reading, Child

Resumo

Objetivo: integrar evidências científicas sobre o perfil de habilidades linguísticas na dislexia do desenvolvimento e no transtorno do desenvolvimento da linguagem, para melhor compreensão de possíveis condições comórbidas ou quadros isolados.

Métodos: trata-se de uma revisão integrativa da literatura. A busca ocorreu nas bases de dados: Scielo, Eric e LILACS, bem como no buscador PubMed. Os critérios de inclusão foram: 1) estudos publicados nos periódicos nacionais e internacionais, gratuitos, com texto completo e disponível; 2) que abordem a temática nos últimos 10 anos; 3) em inglês e/ou português.

Revisão da Literatura: a busca contou com 654 artigos. A amostra final foi composta por dez artigos, nos quais cinco estudos são concordantes quanto à hipótese de que dislexia e transtorno do desenvolvimento da linguagem, podem ser transtornos comórbidos, com prejuízos na leitura, na escrita e na consciência fonológica; os demais estudos descrevem déficits mais amplos de linguagem nas crianças somente com transtorno do desenvolvimento da linguagem, implicados na decodificação e compreensão da linguagem, enquanto na dislexia os déficits estão associados ao processamento fonológico. C

onclusão: não há consenso se a dislexia e o transtorno do desenvolvimento da linguagem ocorrem simultaneamente em crianças. No entanto, ambos conferem riscos à compreensão leitora e ao desempenho escolar.

Palavras-chave

Dislexia; Transtorno Específico de Linguagem; Leitura; Criança

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Submetido em:
30/12/2021

Aceito em:
06/07/2022

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