Among the new chapters are those on autonomic dysfunction, depression, freezing of gait, nonmotor complaints, speech dysfunction
, sleep disorders, sensory symptoms, clinical issues of dementia, impulse control disorders, and pathology.
Today many of them in pre-school age have one or another speech dysfunctions, conditioned both by bilinguistic peculiarities of ontogenesis and organic lesions of speech systems [1; 2; 3; 4].
However, in scientific literature, there stays under-investigated both the problem of differential diagnostics of speech dysfunctions in children-bilinguals, and specificity of word structure, formed by children-bilinguals with speech dysfunctions [3; 4; 5].
In our opinion, it will provide the speech therapists, neurologists and neuropsychologists with the opportunity to take a fresh look and to evaluate the speech dysfunctions of bilinguals.
The study of interconnections of Russian language with any unrelated language have great theoretical and practical value, as it allows determining the influence of linguistic and non-linguistic factors on the development of speech of bilinguals, and also provide an opportunity to reveal in time and to evaluate correctly speech dysfunctions, conditioned by organic and social reasons.