Psychology Commons^™

Response Style Differences In The Inattentive And Combined Subtypes Of Attention-Deficit/Hyperactivity Disorder, Karen J. Derefinko, Zachary W. Adams, Richard Milich, Mark T. Fillmore, Elizabeth P. Lorch, Donald R. Lynam

Psychology Faculty Publications

This study examined potential differences between the inattentive and combined ADHD subtypes using laboratory tasks assessing behavioral inhibitory processes. Seventy-five children completed two tasks of behavioral inhibition believed to isolate different processes: the cued reaction time task (CRT), a basic inhibition task, and the go/no-go task (GNG), a complex inhibition task that incorporates motivational contingencies. Three groups of participants were identified, including ADHD/Inattentive (n = 17), ADHD/Combined (n = 37), and comparison (n = 21). Results indicated that rather than showing behavioral inhibition deficits, the ADHD/I children appeared overly inhibited, as evidenced by slower reaction times across …