Effects of methylphenidate on the auditory processing abilities of children with attention deficit-hyperactivity disorder.

Stimulant medications are widely used as part of the treatment for children with attention deficit-hyperactivity disorder (ADHD). The current study investigated the effects of methylphenidate on auditory vigilance, auditory processing abilities, and receptive language abilities of children with ADHD. Twenty subjects (17 males and 3 females) ranged in age from 7 to 13 years. Each subject had been diagnosed as having ADHD and had been prescribed methylphenidate for the control of hyperactivity. The test battery included the Auditory Continuous Performance Test (ACPT), SCAN (a screening test for auditory processing disorders in children), and the Token Test for Children. Results indicated that there was significant improvement in the children's performance on all measures when on methylphenidate. Implications of these findings are discussed.