Abstract
We propose a general approach to the question of how biological rhythms spontaneously self-regulate, based on the concept of "stochastic feedback". We illustrate this approach by considering at a coarse-grained level the neuroautonomic regulation of the heart rate. The model generates complex dynamics and successfully accounts for key characteristics of cardiac variability, including the 1/f power spectrum, the functional form and scaling of the distribution of variations, and correlations in the Fourier phases indicating nonlinear dynamics.
Original language | English (US) |
---|---|
Pages (from-to) | 363-368 |
Number of pages | 6 |
Journal | Europhysics Letters |
Volume | 43 |
Issue number | 4 |
DOIs | |
State | Published - Aug 15 1998 |
ASJC Scopus subject areas
- General Physics and Astronomy