[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.