[EEG characteristics of stammering in preschool children].

EEG was analyzed in 64 stammering children attending the logopedic groups of general kindergartens. In 85% of the cases EEG was considered pathologic with baseline paroxysmal activity and epileptiform activity in functional testing. The comparison of these data with EEG recorded in age-matched healthy group (102 children) and in a group of 20 children with other central nervous system disorders leaving speech intact showed that a focus of polymorphic activity was recorded in the parietotemporal region in stammering children. This could be a major factor disordering the interhemispheric relations in the stammering etiopathogenesis.