Studying electrical activity of the brain within the concept of coordination of rhythmic processes

Abstract

Purpose of this work is to study the effects of one-day sleep deprivation using the concept of coordination between brain rhythms as a complex network. The research method is the cross-correlation analysis of non-stationary processes, which is an extension of fluctuation analysis to the case of two signals. Recordings of electrocorticograms of mice in two states are considered: before and after sleep deprivation. As a result of the studies carried out, differences have been established between functional states, the diagnosis and quantitative description of which can be carried out using local scaling exponent. Conclusion. Additional possibilities for analyzing the complex dynamics of electrical activity of the brain within the framework of the concept of rhythm coordination are illustrated.

Keywords

• rhythmic dynamics
• cross-correlation analysis
• nonstationarity
• scaling exponent
• electrocorticogram