Kolmogorov-sinai causality in chaotically intertwined dynamics: A heart rate variability case study

When a system with a traditional u/y input/output pair is embedded in a complex environment, the relative role of the input and the output becomes interchangeable. Here we devise a Kolmogorov-Sinai mutual information approach to determine whether u or y is the "cause" and the other the &qu...

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Bibliographic Details
Published in:	2008 3rd International Symposium on Communications, Control and Signal Processing pp. 980 - 985
Main Authors:	Ariaei, F., Jonckheere, E., Stuppy, W.P., Callahan, T.S.
Format:	Conference Proceeding
Language:	English
Published:	IEEE 01-03-2008
Subjects:	Anesthetic drugs Biomembranes Chaos Heart rate interval Heart rate variability Impedance Mechanical variables control Shock waves Voltage Wind
Online Access:	Get full text
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Summary:	When a system with a traditional u/y input/output pair is embedded in a complex environment, the relative role of the input and the output becomes interchangeable. Here we devise a Kolmogorov-Sinai mutual information approach to determine whether u or y is the "cause" and the other the "effect." It turns out that in some complex environments the information flow goes both ways, a phenomenon that can be abstracted as a feedback structure. The concept is illustrated on the RR/QT coupled dynamics of the heart.
ISBN:	1424416876 9781424416875
DOI:	10.1109/ISCCSP.2008.4537365