Dyslexics' Visual Attention Field

Civil Hospices of Lyon

Status: Active, not recruiting

Conditions: Dyslexia

Treatments: Other: Passing tests in dyslexics with reduced eva; Other: Passing tests in controls

Study type: Interventional

Funder types: Other

Identifiers

NCT03285789

69HCL17_0333

2017-A02525-48 (Other Identifier)

Details and patient eligibility

About

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.

Enrollment: 1,460 patients

Sex: All

Ages: 3 to 12 years old

Volunteers: Accepts Healthy Volunteers

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

Trial design

Primary purpose: Other

Allocation: Non-Randomized

Interventional model: Parallel Assignment

Masking: None (Open label)

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1,460 participants in 3 patient groups

Dyslexics with reduced visual attention span

Experimental group

Description:

21 subjects diagnosed dyslexics with reduced visual attention span

Treatment:

Other: Passing tests in dyslexics with reduced eva

Dyslexics with normal visual attention span

Experimental group

Treatment:

Other: Passing tests in dyslexics with reduced eva

controls

Active Comparator group

Treatment:

Other: Passing tests in controls