The electroencephalographic correlate of cognitive deficiency at the children who had got over a perinatal arterial ischemic stroke

Abstract

Introduction. It is designated relevance of singling out of the effective electroencephalographic range reflecting cognitive deficiency at the children who had a perinatal ischemic stroke. It is necessary for the subsequent search for early markers of possible cognitive disturbances in later years. The scientific novelty of the study is in attempt of singling out of a neurophysiological correlate of cognitive deficiency at children with rare pathology of the central nervous system with use of the integrated approach including behavioral and equipment-specific methods.

Methods. In the section it is described peculiarities of using electroencephalographic techniques and Bayley-III scales for selection of a neurophysiological correlate of cognitive deficiency in the babyhood and childhood.

Results. The section includes data of statistical processing of a cognitive subscale of the Bailey-III technique and the analysis of the rescaled density of power spectrum of electroencephalographic ranges: beta2 (17–30 Hz) and gamma (30–40 Hz) in projections of prefrontal cortex. The beta2-band showed the greatest ratios with the indicators of the used subscale.

Results and discussion.

It is considered reasons of separation of the children with perinatal arterial ischemic strokes in a group of the high risk of the cognitive disfunction which can develop in course of time. We conclude about a possibility of singling out of beta2-band as the most effective indicator for a neurophysiological correlate of cognitive deficiency at the children who had a perinatal arterial ischemic stroke.