The study aimed to compare the performance of children with ADHD and children without learning and/or attention diffi culties in tasks of visual attention, executive functions, self-esteem and self--concept. Participants were34 children, 17 with ADHD and 17in the control group, with a mean age of 9.92 years. For the evaluation, the following tests were used: Cancellation Test, Trail Making Test, Stroop Color Word Test, Tower of London, Children's Depression Inventory, Self-Esteem Multidimensional Scale, and Children's Self-Concept Scale. The results indicated that children with ADHD showed worse out comes in attention and executive functions evaluations, in the belief of doing things the wrong way, in feelings of guilt and in low self-esteem, both in the general result as well as in self-perception. Keywords: Attention defi cit and hyperactivity disorder, cognition, self-esteem, self-concept, children. Attention Defi cit and Hyperactivity Disorder (ADHD) is a neurobehavioral disorder of early onset, characterized by psychomotor restlessness, sustained attention diffi culty and cognitive and social impulsivity. The main characteristics of ADHD are diffi culties in maintaining attention on tasks that require concentration, completing tasks and remaining seated, low performance on assessments, disorganized material and work, constant speech, conversations and/or noises at inappropriate times, low performance in attentional and executive functions tasks (Barkley, 2008;
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