Brain Mechanisms of Voluntary Regulation of Activity during Acquisition of the Skill of Writing in Seven-to Eight-Year-Old Children. O.A.Semenova, R.I.Machinskaya, T.V.Akhutina, E.V.Krupskaya, 2001
Abstract — With the aim of studying the formation of brain mechanisms of voluntary activity regulation in junior schoolchildren and the role of these mechanisms in the acquisition of the skill of writing, a complex neuropsychological investigation was carried out. In the EEG of children with learning problems and a deﬁcit of voluntary activity regulation (VAR), signs of the functional immaturity of the fronto–thalamic regulatory system (FTS) were found. Comparative neuropsychological analysis revealed a speciﬁc impairment of the VAR in these children in the form of pronounced impulsiveness, instability of a program, problems in switching over from one program to another, and selfcontrol difﬁculties. It is concluded that the functional maturation of the FTS is a mechanism of VAR development. It is shown that the VAR deﬁciency in children with FTS immaturity is combined with a delay in the development of semantic and mediating speech functions. It was found that the features of the development of the higher mental functions in seven- to eight-year-old children with FTS immaturity speciﬁcally affect both the semantic and graphic aspects of writing acquisition.