Physics – Condensed Matter – Statistical Mechanics
Scientific paper
2000-05-17
Physics
Condensed Matter
Statistical Mechanics
13 pages, 5 figures, corrected typos
Scientific paper
10.1103/PhysRevLett.87.168105
We introduce a segmentation algorithm to probe temporal organization of heterogeneities in human heartbeat interval time series. We find that the lengths of segments with different local values of heart rates follow a power-law distribution. This scale-invariant structure is not a simple consequence of the long-range correlations present in the data. We also find that the differences in mean heart rates between consecutive segments display a common functional form, but with different parameters for healthy individuals and for patients with heart failure. This finding may provide information into the way heart rate variability is reduced in cardiac disease.
Bernaola-Galván Pedro
Goldberger Ary L.
Ivanov Plamen Ch
Nunes Amaral Luis A.
Stanley Eugene H.
No associations
LandOfFree
Scale Invariance in the Nonstationarity of Physiological Signals does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Scale Invariance in the Nonstationarity of Physiological Signals, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Scale Invariance in the Nonstationarity of Physiological Signals will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-558865