Perspectives on attention deficit hyperactivity disorder: executive functions, working memory, and language disabilities.

The conceptualization of the nature of attention deficit hyperactivity disorder (ADHD) has changed in the last decade. ADHD is now viewed as a neurologically based condition with primary deficits in executive functions and working memory (WM). Students with ADHD have deficits in discourse organization, inferring, and monitoring that are related to their executive function and WM deficits. A large number of students with ADHD also have comorbid reading and language disabilities that exist in addition to the deficits directly associated with the ADHD. Comprehensive evaluation of students with ADHD is essential to address their specific learning needs.