Executive Function and ADHD is not only discussed by Russell Barkley, as two people wrote to remind me of. ADHD is also a critical part of the way Dr. Thomas E. Brown looks at ADHD. Click here and you will find a brief description of how Dr. Brown see's the issue of ADHD and Executive Function:
click here: http://www.drthomasebrown.com/pdfs/ef_article.pdf