Developmental dyslexia is a frequent learning disability. The aim of this study is to analyze cortical thickness and phonological treatment in right handed adults with developmental dyslexia. They are compared to control adults paired with age and laterality. To study phonological treatment, the researchers used functional magnetic resonance imaging (fMRI) with a rime judgement task and silent word generation.

Inclusion Criteria:

• Developmental dyslexia according to Critchley.
• Normal performance intelligence quotient (PIQ)
• Age: 18-35 years
• Sex: Male
• Right handed
• No hearing deficit.

Exclusion Criteria:

• No head injury
• No attention deficit hyperactivity disorder (ADHD)

This is a prospective study including 15 right-handed male subjects, aged 18 to 35 years, carrying a developmental dyslexia and 15 control subjects handed the same sex. We chose to include only male subjects to obtain a homogeneous population and to avoid the problem of a functional organization differs according to gender.