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Modeling heart rate variability by stochastic feedback (1999)

Goldberger, A. L. ; Stanley, H. E. ; Amaral, L. A.

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Publication Date: 2011-08-24

Description: We consider the question of how the cardiac rhythm spontaneously self-regulates and propose a new mechanism as a possible answer. We model the neuroautonomic regulation of the heart rate as a stochastic feedback system and find that the model successfully accounts for key characteristics of cardiac variability, including the 1/f power spectrum, the functional form and scaling of the distribution of variations of the interbeat intervals, and the correlations in the Fourier phases which indicate nonlinear dynamics.

Keywords: Life Sciences (General)

Type: Computer physics communications (ISSN 0010-4655); Volume 121-122; 126-8

Format: text

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