Noise Effects on the Complex Patterns of Abnormal Heartbeats

Verena Schulte-Frohlinde, Yosef Ashkenazy, Plamen Ch Ivanov, Leon Glass, Ary L. Goldberger, H. Eugene Stanley

Research output: Contribution to journalArticlepeer-review

52 Scopus citations


Patients at high risk for sudden death often exhibit complex heart rhythms in which abnormal heartbeats are interspersed with normal heartbeats. We analyze such a complex rhythm in a single patient over a 12-h period and show that the rhythm can be described by a theoretical model consisting of two interacting oscillators with stochastic elements. By varying the magnitude of the noise, we show that for an intermediate level of noise, the model gives best agreement with key statistical features of the dynamics.

Original languageEnglish GB
Pages (from-to)68104-1-68104-4
JournalPhysical Review Letters
Issue number6
StatePublished - 6 Aug 2001
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (all)


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