TY - JOUR
T1 - Multifractality in human heartbeat dynamics
AU - Ivanov, Plamen Ch
AU - Nunes Amaral, Luís A.
AU - Goldberger, Ary L.
AU - Havlin, Shlomo
AU - Rosenblum, Michael G.
AU - Struzik, Zbigniew R.
AU - Stanley, H. Eugene
PY - 1999/6/3
Y1 - 1999/6/3
N2 - 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.
AB - 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.
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U2 - 10.1038/20924
DO - 10.1038/20924
M3 - Article
C2 - 10365957
AN - SCOPUS:0344327144
SN - 0028-0836
VL - 399
SP - 461
EP - 465
JO - Nature
JF - Nature
IS - 6735
ER -
