What are the causes of the attention deficits observed in children with dyslexia?

Dyslexic children often show attention problems at school, but it is not clear the nature of their impairments. The aim of this study was to analyze whether verbal processing artefacts could mediate attention deficits. Forty-seven children (22 dyslexics and 25 controls), aged between 7 to 12, were assessed through an ADHD rating scale and a battery of tasks tapping different attentional processes (selective, sustained, executive, and orienting). Phonological measures were used as covariates. Children with dyslexia showed attentional impairments (using both rating scales and neuropsychological tasks); however their performance was significantly affected by phonological performance. In conclusion, dyslexics may be inattentive at school because they are slow processors, in particular when they are presented with verbal stimuli.