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Multifractality in human heartbeat dynamics

Author

Listed:
  • Plamen Ch. Ivanov

    (Boston University
    Harvard Medical School, Beth Israel Deaconess Medical Center)

  • Luís A. Nunes Amaral

    (Boston University
    Harvard Medical School, Beth Israel Deaconess Medical Center)

  • Ary L. Goldberger

    (Harvard Medical School, Beth Israel Deaconess Medical Center)

  • Shlomo Havlin

    (Bar-Ilan University)

  • Michael G. Rosenblum

    (Potsdam University)

  • Zbigniew R. Struzik

    (Centre for Mathematical and Computing Science)

  • H. Eugene Stanley

    (Boston University)

Abstract

There is evidence that physiological signals under healthy conditions may have a fractal temporal structure1. 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 properties2,3,4,5,6. We report onevidence 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.

Suggested Citation

  • Plamen Ch. Ivanov & Luís A. Nunes Amaral & Ary L. Goldberger & Shlomo Havlin & Michael G. Rosenblum & Zbigniew R. Struzik & H. Eugene Stanley, 1999. "Multifractality in human heartbeat dynamics," Nature, Nature, vol. 399(6735), pages 461-465, June.
    • Handle: RePEc:nat:nature:v:399:y:1999:i:6735:d:10.1038_20924
    DOI: 10.1038/20924
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