Improving working memory in children with attention-deficit/hyperactivity disorder: the separate and combined effects of incentives and stimulant medication.
Strand MT, Hawk LW, Bubnik M, Shiels K, Pelham WE, Waxmonsky JG. Improving working memory in children with attention-deficit/hyperactivity disorder: the separate and combined effects of incentives and stimulant medication. J Abnorm Child Psychol. 2012 Oct; 40(7):1193-207.