Journal
JOURNAL OF ABNORMAL CHILD PSYCHOLOGY
Volume 35, Issue 5, Pages 745-758Publisher
SPRINGER/PLENUM PUBLISHERS
DOI: 10.1007/s10802-007-9131-6
Keywords
stop-signal; behavioral inhibition; attention deficit hyperactivity disorder; ADHD; meta-analysis
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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.
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