Peculiarities of Synchronisation of Resting EEG Rhythms in Girls with High and Low Anxiety Levels

The article presents the results of a comparative analysis of the coherence of the main EEG rhythms (δ, θ, α, β₁ and β₂) in different areas of the cerebral cortex relative to frontal pole leads(Fp₁ and Fp₂) leads in girls with high and low levels of anxiety during passive wake state. In highly anxious individuals, there is an increase in the synchronization of EEG rhythms in all areas of the cerebral cortex, with a greater severity in the left hemisphere. At the same time, there is an increase in intra- and interhemispheric coherence between the local and distal zones of the cortex of the left hemisphere. In the right hemisphere, the highest values ​​of coherence at a high level of anxiety were found between distant areas of the cerebral cortex. A characteristic feature of the EEG of highly anxious individuals is the redistribution of rhythm synchronization from the frontal regions to the caudal cortical zones. Possible reasons for the change in the process of EEG rhythm synchronization during anxiety are discussed.

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