Hallazgos de neuroimagen y desempeño ortográfi co de estudiantes con trastorno por défi cit de atención con hiperactividad según la semiología de los errores

Aim: To characterize, compare and classify the performance of students with attention deficit-hyperactivity disorder (ADHD) according to the semiology of errors and to describe the neuroimaging findings in these students. Methods: We evaluated 36 primary school boys and girls aged between 8 and 11 years old in the 3 rd to 5 th grades. The children were divided in two groups. Group I consisted of 18 students with an interdisciplinary diagnosis of ADHD (60% boys and 40% girls). Group II consisted of 18 children with good academic performance, paired by gender, age and grade with children in group I. The collective and individual versions of the Pro-ortografia spelling tests were applied. Results: Statistically significant differences were found in almost all the tests of the individual and collective versions of the spelling evaluation, with children with ADHD showing a higher average number of errors. Neuroimaging examinations indicated that 81% of the students in GI showed hypoperfusion in the frontal lobe, 7% had hypoperfusion of the thalamus and basal ganglia, 6% showed hypoperfusion in the basal ganglia only and 6% showed hypoperfusion in the left and right frontal lobes. Conclusions: Children with ADHD demonstrated poorer knowledge of the use of spelling rules in Brazilian Portuguese, which could be related to changes in blood flow in the frontal lobe, parietal lobe, thalamus and basal ganglia. These changes could cause a lack of attention, affecting phonological working memory and the planning of writing. © 2011 AELFA.

Da ortografia para a fonética e a fonologia nos Sermões do Padre Antônio Vieira

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Estudo das fricativas coronais da língua portuguesa: da fonética à ortografia e da ortografia à fonética

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Relações entre aquisição da percepção auditiva e aprendizagem da ortografia: consoantes soantes em questão

We compared the relationships between acquisition of auditory perception and the acquisition of sonorant consonants spelling in children of the first two grades of elementary school. The comparison was based on a procedure of identifying and writing the same set of words that presented phonological contrasts between them. As to the results, it was found: (1) gradation in the acquisition of subclasses within a larger class; (2) matches and mismatches between the two types of task; (3) increased adjustments in spelling and more mismatches in auditory perception with increasing enrollment. This set of results indicates, therefore, the complexity of the relationships between the acquisition of auditory perception and the acquisition of spelling, since, once contacted, their journey together at the same time promotes links and outcomes between them.