Eye vergence responses in children with and without reading difficulties during a word detection task.
Vision Res
; 169: 6-11, 2020 04.
Article
em En
| MEDLINE
| ID: mdl-32143068
ABSTRACT
Vergence eye movements are movements of both eyes in opposite directions. Vergence is known to have a role in binocular vision. However recent studies link vergence eye movements also to attention and attention disorders. As attention may be involved in dyslexia, it is sensible to guess that the presence of reading difficulties can be associated with specific patterns in vergence responses. Data from school children performing a word-reading task have been analysed. In the task, children had to distinguish words from non-words (scrambled words or row of X's), while their eye positions were recorded. Our findings show that after stimulus presentation eyes briefly converge. These vergence responses depend on the stimulus type and age of the child, and are different for children with reading difficulties. Our findings support the idea of a role of attention in word reading and offer an explanation of altered attention in dyslexia.
Palavras-chave
Texto completo:
1
Bases de dados:
MEDLINE
Assunto principal:
Leitura
/
Movimentos Sacádicos
/
Visão Binocular
Tipo de estudo:
Diagnostic_studies
Limite:
Child
/
Humans
Idioma:
En
Revista:
Vision Res
Ano de publicação:
2020
Tipo de documento:
Article
País de afiliação:
México