Gleeson, James P. and Stefanovska, Aneta (2007) A simple model for 1/f spectra in heart rate variability. In: PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE). PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE), 6602 (084101). SPIE-INT SOC OPTICAL ENGINEERING, Bellingham, Washington, USA. ISBN 978-0-8194-6739-3
Full text not available from this repository.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/f 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.
| Item Type: | Contribution in Book/Report/Proceedings |
|---|---|
| Additional Information: | NOISE AND FLUCTUATIONS IN BIOLOGICAL, BIOPHYSICAL, AND BIOMEDICAL SYSTEMS |
| Subjects: | Q Science > QA Mathematics Q Science > QC Physics |
| Departments: | Faculty of Science and Technology > Physics |
| ID Code: | 11267 |
| Deposited By: | Dr Aneta Stefanovska |
| Deposited On: | 06 Aug 2008 21:20 |
| Refereed?: | No |
| Published?: | Published |
| Last Modified: | 07 May 2013 10:42 |
| Identification Number: | |
| URI: | http://eprints.lancs.ac.uk/id/eprint/11267 |
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