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J Abnorm Psychol. 2005 May;114(2):216-22.

A meta-analytic review of stopping performance in attention-deficit/hyperactivity disorder: deficient inhibitory motor control?

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  • 1Department of Psychopharmacology, Utrecht University, Utrecht, the Netherlands.


This review discusses whether deficient inhibitory motor control is the core deficit of attention-deficit/hyperactivity disorder (ADHD). Inhibitory motor control is commonly assessed using the stop-signal paradigm. Since the last meta-analysis that was performed, 33 new studies have appeared. The current meta-analysis revealed a significant difference between ADHD patients and matched controls in stop latency (stop-signal reaction time) in both children and adults. Basic reaction time was significantly longer in children with ADHD, but not in adults, and there was a significant interaction between the elongation of the latency to stop and to respond in adults, but not in children. Deficient inhibitory motor control may be less crucial in children than in adults with ADHD.

Copyright 2005 APA, all rights reserved.

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