CORRELATION INDICES OF CEREBRAL HEMODYNAMICS AND ELECTRICAL ACTIVITY IN CHILDREN WITH IMPAIRED MOTOR SKILLS
І.V. Golovchenko, M.I. Hayday
Kherson State University
The correlations between the indicators of cerebral hemodynamics
and electrical activity in children with impaired
motor skills of central origin (children with cerebral palsy)
were investigated. There is established a high number of
links between indicators of rheoencephalogram (REG) and
electroencephalogram (EEG) in the left cerebral hemisphere
than in the right. In frontomastoidal allocation 19 correlations
and in occipitomastoidal - 59 links. We suppose that poor
circulation in vertebroplasty-basilar system leads to the
defeat of the brain stem, which, with afferent pathways of the
reticular formation, connects the thalamus with the cortex.
In the reticular formation there is an inhibition of ascending
activators influences, which eland to decreasing of the cortex
is tonus. You can talk about the functional immaturity of the
system of nonspecific activation by the reticular formation of
the brain stem. Children with violation of motor activity had
significantly more negative and positive significant and high
correlation among the existing indicators of electric brain
activity and cerebral hemodynamics, in our opinion, is due
to the development of interconnection compensation that is
carried out by adjustment of the functional systems and the
formation of new forms of adaptive responses in conditions
of disontogenetik. Feature correlation pattern of the EEG,
of children with disorders of motor activity, is associated
with a significantly great number of high and significant
correlations between measures of electrical brain activity in
the δ- and q- rhythms, especially in the temporal areas of the
cerebral cortex. According to visual analysis of EEG there is
revealed a common manifestation of changes of bioelectric
brain activity in children with disorders of motor activity. This
is manifested in the development of paroxysmal activity of
action potentials of θ- and δ-rhythms with the focus of activity
in the anterior areas of the cerebral cortex; the formation
of a mosaic representation of the θ-rhythms in temporal
areas; the presence of hypersynchronous a-paroxysms in the
posterior areas of the cerebral cortex. The given facts testify
to activation of mechanisms of limbic-neocortical systems
and synchronizing influences of the reticular formation of the
stem and diencephalic structures. There is also detected greater
number of correlations when occipitomastoidal registration
was lone it reflects compensatory redistribution of cerebral
blood flow over the affected structures of brain stem structures
that are associated with the provision of cortical functions.
α, β, δ, θ - subbands; EEG; intercortical interactions; violation of motor activity; children.
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