Doctor of the psychological sciences, professor, academician Institute of psychiatry of Roszdrav, Center of pathology of speech and speech neurorehabilitation Moscow, Russia [email protected]
Abstract.The article explains the productivity of neuropsychological approach to the analysis of gross dizontogeny a lack of speech. The author puts forward a point of view of their uniform pathogenesis, despite the fact that their names are different – delays in speech development (DSD), alalia and general underdevelopment of speech (GUS). The cause of terminological discrepancies in the designation of the speech disorders author considers the fact that in different age periods of undeveloped speech looks different. This is, from the point of view of the author, is the basis of a long debate, leading to the literature on the use of the term alalia boundaries. The paper put forward the view that the brain mechanisms of these disorders of speech in children with normal hearing, vision, and intellect is intact primary inferiority interzonal relationships (pathways) required for the acquisition of language skills.It is argued that, in contrast to gross violations of speech in adults (aphasia), for lack of speech in children pathogenetic importance is the inability to transport stimuli of the outside world in the speech areas of the brain, rather than organic lesions of these areas. This view stems from special studies identifi ed in accordance regularities functional integration and disintegration speech ability. It is noted that the acute urgent problems of modern scientifi c research in the fi eld of neuroscience is to clarify the etiology of conduction disorders zonal pathways. From its solution depends on the methods of drug therapy and corrective training algorithms which are also covered in a nontraditional way the author. 
Keywords: alalia, general underdevelopment of speech, speech delay, pathogenesis, brain structure, interzonal pathways age periods, correction, integration.