Relation between response inhibition and symptoms of inattention and hyperactivity-impulsivity in children.
OBJECTIVE
This study assessed the relation of response inhibition with inattention and hyperactivity-impulsivity.


METHODS
The stop signal task was employed to investigate inhibitory control in 76 children with symptoms of inattention and/or hyperactivity-impulsivity and 48 normal control subjects. The Rating Scale for teachers, which measures the intensity of hyperactivity-impulsivity and inattention, was completed for each child.


RESULTS
Response inhibition deficit was found in children with symptoms of inattention alone or both inattention and hyperactivity-impulsivity, but not in children with hyperactive-impulsive symptoms alone. Stepwise regression indicated that distractibility-fatigability is the best predictor of the stop signal reaction time.


CONCLUSIONS
Symptoms of inattention, rather than symptoms of hyperactivity-impulsivity, are associated with the response inhibition impairment.
Gambin
Małgorzata
M
Department of Psychology, University of Warsaw, Warsaw, Poland.
Swiecicka
Małgorzata
M
D000704:Analysis of Variance; D001288:Attention; D001289:Attention Deficit Disorder with Hyperactivity / Q000523:psychology*; D002648:Child; D005221:Fatigue / Q000523:psychology; D005260:Female; D006801:Humans; D007175:Impulsive Behavior / Q000523:psychology; D007266:Inhibition, Psychological; D008297:Male; D013647:Task Performance and Analysis