CHARACTERISTIC OF HEMISPHERIC ASYMMETRYAMONG THE ELDERLY RESIDENTS OF THE CIRCUMPOLAR REGION

Abstract

The article presents the results of the study of interhemispheric asymmetry among 28 men and 33 women of the elderly age. Interhemispheric asymmetry was assessed by DC-potential level difference between symmetrical areas of the brain. The DC-potential were recorded, processed and analyzed using a 12-channel hardware and software diagnostic complex “Neuroenergometr -КМ» in the unipolar leads. The resulting distribution characteristics DC-potential were compared with the average standard values for the corresponding age period incorporated into the complex software. It was revealed that interhemispheric interaction among the elderly living in the North was changed in comparison with normative data that is expressed in the individual variability of the hemispheric differences in the group of men and women. Smoothing hemispheric asymmetry was observed among men living in the North in the frontal leads and among women in central ones and hemispheric dominance in the central leads of men. In both groups, there is left-hemisphere dominance in the parietal and frontal leads of women.