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Home > Research > Publications & Outputs > Noise and determinism in cardiovascular dynamics.
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Noise and determinism in cardiovascular dynamics.

Research output: Contribution to journalJournal article

Published

Journal publication date1/11/2002
JournalPhysica A: Statistical Mechanics and its Applications
Journal number1-4
Volume314
Number of pages8
Pages69-76
Original languageEnglish

Abstract

Signals derived from the human cardiovascular system are well known to exhibit highly complex, nearly periodic, oscillatory behaviour whose nature is something of an enigma. It has, for example, been variously described as chaotic, fractal, stochastic, and subject to 1/f fluctuations — and its true nature is still the subject of vigorous debate. We review and describe some recent experiments that illuminate the problem and discuss a combination of noise and almost periodic frequency modulation as a signature of the system dynamics.