Language abilities in children with attention deficit hyperactivity disorder, reading disabilities, and normal...

Area of Science:

• Developmental Psychology
• Neuroscience
• Clinical Psychology

Background:

• Children with attention deficit hyperactivity disorder (ADHD) often exhibit language impairments (LI) and reading disabilities (RD).
• The overlap between LI and RD complicates understanding whether language deficits are specific to ADHD or secondary to comorbid RD.

Purpose of the Study:

• To investigate the specific language abilities of children with ADHD, with and without comorbid RD.
• To differentiate the language processing deficits associated with ADHD from those associated with RD.

Main Methods:

• Study involved 50 boys aged 7-11, including groups with ADHD only, ADHD + RD, RD only, and normal controls.
• Language abilities were assessed using a narrative recall task and tests of semantic language knowledge.

Main Results:

• Children with ADHD (both ADHD-only and ADHD + RD) showed difficulties in narrative organization and monitoring during story retelling.
• Children with RD (both RD-only and ADHD + RD) displayed deficits in receptive and expressive semantic language abilities.
• The comorbid ADHD + RD group exhibited a combination of deficits seen in both ADHD and RD groups.

Conclusions:

• ADHD-related language deficiencies are linked to higher-order executive function deficits.
• RD-related language impairments stem from deficits in basic semantic language processing.
• Comorbid ADHD and RD result in a compounded profile of language and executive function deficits.