We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Multifractality in human heartbeat dynamics.
- Authors
Ivanov, P C; Amaral, L A; Goldberger, A L; Havlin, S; Rosenblum, M G; Struzik, Z R; Stanley, H E
- Abstract
There is evidence that physiological signals under healthy conditions may have a fractal temporal structure. Here we investigate the possibility that time series generated by certain physiological control systems may be members of a special class of complex processes, termed multifractal, which require a large number of exponents to characterize their scaling properties. We report on evidence for multifractality in a biological dynamical system, the healthy human heartbeat, and show that the multifractal character and nonlinear properties of the healthy heart rate are encoded in the Fourier phases. We uncover a loss of multifractality for a life-threatening condition, congestive heart failure.
- Publication
Nature, 1999, Vol 399, Issue 6735, p461
- ISSN
0028-0836
- Publication type
Journal Article
- DOI
10.1038/20924