Dyslexics' Visual Attention Field

Evaluation of the Visuo-attention Field of Symbols Versus Objects Visual Search in Dyslexic Subjects. DyslexiaSPOTLIGHT

dyslexia is often considered like a phonological deficit but some researches show that a visual attention (V-A) deficit can occur in dyslexia. The investigator want to show that some dyslexics have a reduced V-A field in visual search when the investigator use separable feature (letter-like).

If the investigator demonstrate that, he will show that V-A deficit can be transpose to an ability acquired before reading, the visual search. Therefore, the V-A deficit can't be a consequence of reading problem but a cause of it for some dyslexics.

The investigator could imagine an earlier diagnosis for children at risk to develop dyslexia and make reeducation more specific for the deficit observed.

Inclusion Criteria:

• normal or corrected to normal vision
• diagnosed dyslexics with a recent "alouette" test

Exclusion Criteria:

• other developmental problem (dysphasia, dyspraxia, ADHD)
• strabismus, amblyopia, oculomotor paralysis