Attention-deficit/hyperactivity disorder and behavioral inhibition: a meta-analytic review of the stop-signal paradigm.
Deficient behavioral inhibition (BI) processes are considered a core feature of attention deficit/hyperactivity disorder (ADHD). This meta-analytic review is the first to examine the potential influence of a wide range of subject and task variable moderator effects on BI processes--assessed by the stop-signal paradigm--in children with ADHD relative to typically developing children. Results revealed significantly slower mean reaction time (MRT), greater reaction time variability (SDRT), and slower stop-signal reaction time (SSRT) in children with ADHD relative to controls. The non-significant between-group stop-signal delay (SSD) metric, however, suggests that stop-signal reaction time differences reflect a more generalized deficit in attention/cognitive processing rather than behavioral inhibition. Several subject and task variables served as significant moderators for children's mean reaction time.
Department of Psychology, University of Central Florida, P. O. Box 161390, Orlando, FL 32816-1390, USA.
R Matt
RM
Alderson
Mark D
MD
Rapport
Michael J
MJ
Kofler
D001289:Attention Deficit Disorder with Hyperactivity / Q000523:psychology*; D002648:Child; D006801:Humans; D007266:Inhibition, Psychological; D011930:Reaction Time