[Executive dysfunction in attention deficit hyperactivity disorder in childhood].

INTRODUCTION The principal problem of ADHD is the difficulty to execute inhibitory control. The inhibition is an executive function that is develop during childhood. AIM To know if other executive functions shower a lower performance in ADHD versus control group and these were different between ADHD-I and ADHD-C. PATIENTS AND METHODS Fifty three children, between 7 to 10 years old, participated and were assess with EMIC and Simon task. RESULTS The results showed similar profile in working memory and verbal span. In contrast, ADHD-C showed lower performance in Simon task and more impulsively. On an other hand, ADHD-I showed lower performance in memory working tasks and planning. CONCLUSIONS These results suggest differences in the executive profile between ADHD-I and ADHD-C and these support the hypothesis of Barkley about the necessity to differ both clinical subtypes.

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