Complex brain-heart mapping in mental and physical stress

Objective: The central and autonomic nervous systems are deemed complex dynamic systems, wherein each system as a whole shows features that the individual sub-components do not. They also continuously interact to maintain body homeostasis appropriate react endogenous exogenous stimuli. Such interactions comprehensively referred functional brain–heart interplay (BHI). Nevertheless, it remains uncertain whether this interaction exhibits characteristics, is, dynamics of entire inherently demonstrate behavior, or if such complexity is solely trait systems. Here, we performed mapping BHI under mental physical stress conditions. Methods procedures: Electroencephalographic heart rate variability series were obtained from 56 healthy individuals performing arithmetic cold-pressure tasks, physiological properly combined derive directional series, whose was quantified through fuzzy entropy. Results: experimental results showed mainly modulated in efferent direction brain heart, targets vagal oscillations during sympathovagal stress. Conclusion: We conclude may provide insightful information on both activity, well their continuous interaction. Clinical impact: This research enhances our comprehension reciprocal between potentially paving way for more accurate diagnoses targeted treatments cardiovascular, neurological, psychiatric disorders.