Detailed studies of ontogenetic changes in EEG parameters in men and women during the reproductive period

Abstract

Changes in 272 EEG parameters were studied in 252 women and 97 men during the period of life from age 16 years to age 45 years with a step of one month. Correlation and approximation analysis showed more progressive age-related decreases in the amplitude and power of α, θ, and δ but not β oscillations in women than men, particularly in the right posterior leads. A general ontogenetic tendency to nonlinear decreases in the amplitude and power of EEG rhythms with age was seen in people of both genders. The frequencies of rhythms generally showed compensatory increases during ontogeny. Thus, neurologically healthy men and women showed different means of achieving the same end – adaptive responding of the brain to age-related changes