@inproceedings{c008938b9e7646a883d4a3c3cf5e2d1b,
title = "A simple model for 1/f spectra in heart rate variability",
abstract = "Heart rate variability (HRV) measures cycle-to-cycle correlations in the instantaneous oscillation period of the heart. In this paper it is shown that a simple model process, consisting of a sum of uncoupled sinusoidal oscillators with slightly different frequencies, has a HRV spectrum with a 1/f scaling over a range of frequencies. This implies that the appearance of 1// HRV spectra in experiments should not be considered evidence of oscillator coupling or other more complex dynamics. The origin of the 1/f scaling in the model is examined analytically, and its dependence upon the sampling of low-amplitude fluctuations of the process is highlighted.",
keywords = "1/f spectrum, Heart rate variability, Oscillator jitter",
author = "Gleeson, {James P.} and Aneta Stefanovska",
year = "2007",
doi = "10.1117/12.725558",
language = "English",
isbn = "0819467391",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
booktitle = "Noise and Fluctuations in Biological, Biophysical, and Biomedical Systems",
note = "Noise and Fluctuations in Biological, Biophysical, and Biomedical Systems ; Conference date: 21-05-2007 Through 23-05-2007",
}