Desempenho cognitivo-linguístico e achados de neuroimagem de escolares com dislexia, transtorno do déficit de atenção com hiperatividade

Objective: This study aimed at characterizing and comparing the performance of students with dyslexia, attention deficit hyperactivity disorder, and good readers in cognitive-linguistic tests and neuroimaging. Methods: This study included 53 students, divided into GI, 17 students with interdisciplinary diagnoses of dyslexia; GII, 17 with interdisciplinary diagnoses with attention deficit hyperactivity disorder; and GIII, 19 good readers. We applied the cognitive-linguistic performance test and neuroimaging exams (Single Photon Emission Computed Tomography). Results: The results revealed that GI and GII showed low scores in the cognitive-linguistic performance test. The neuroimaging exams indicated predominance of hypoperfusion in the mesial portion of the left temporal lobe for GI and in the left frontal lobe for GII. Conclusion: The low performance of GI and GII are related with the cognitivelinguistic profile and may be due to changes in blood flow in some areas of the central nervous system.