Age -related changes of the cytoarchitectonic of the speech -movement area of the brain of men and women

Cytoarchitectonic of area 44 of speech - movement area of cerebral cortex of men s and women s brains in three age groups has been studied: group I - mature age (men 28,0±5,1 years, female 25,8±6,1 years); group II - older age (men 66,2± 5,4 years, female 67,2±4,8 years); III group - old age (men 86,0±2,3 years, female 83,2±2,9 years). 30 hemispheres of men's brains and 30 hemispheres of women's brains have been study, 10 hemispheres in each age. Modern morphometric methods have been used for studying of cytoarchitectonic characteristics of area 44, for thickness of cortex, the area of the profile fields of neurons of layers III and V, their class composition, the density of neurons. We found that the amount of the cytoarchitectonic characteristics changes statistically significant in men's and women's brains in old age. In old age, structural changes to area 44 was not significant. Men have a tendency to large changes in the morphometric characteristics than that of women. With age, there is a decrease of interhemispheric asymmetry of the structure of speech - motor areas of brain.