Journal
ENTROPY
Volume 21, Issue 2, Pages -Publisher
MDPI
DOI: 10.3390/e21020178
Keywords
crucial events; renewal processes; ergodicity breakdown; stationary correlation function; renewal aging; heart-brain communication
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Funding
- ARO [W911NF1901]
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In this paper, we establish a clear distinction between two processes yielding anomalous diffusion and 1/fnoise. The first process is called Stationary Fractional Brownian Motion (SFBM) and is characterized by the use of stationary correlation functions. The second process rests on the action of crucial events generating ergodicity breakdown and aging effects. We refer to the latter as Aging Fractional Brownian Motion (AFBM). To settle the confusion between these different forms of Fractional Brownian Motion (FBM) we use an entropic approach properly updated to incorporate the recent advances of biology and psychology sciences on cognition. We show that although the joint action of crucial and non-crucial events may have the effect of making the crucial events virtually invisible, the entropic approach allows us to detect their action. The results of this paper lead us to the conclusion that the communication between the heart and the brain is accomplished by AFBM processes.
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