title: Decomposition of heartbeat time series: scaling analysis of the sign sequence.
abstract: The cardiac interbeat (RR) increment time series can be decomposed into two sub-sequences: a magnitude series and a sign series. The authors show that the sign sequence, a simple binary representation of the original RR series, retains fundamental scaling properties of the original series, is robust with respect to outliers, and may provide useful information about neuroautonomic control mechanisms.
authors: Center for Polymer Studies and Department of Physics, Boston University, Boston, MA, USA. ashkenaz@argento.bu.edu
authors: Y
authors: Y
authors: Ashkenazy
authors: P C
authors: PC
authors: Ivanov
authors: S
authors: S
authors: Havlin
authors: C K
authors: CK
authors: Peng
authors: Y
authors: Y
authors: Yamamoto
authors: A L
authors: AL
authors: Goldberger
authors: H E
authors: HE
authors: Stanley
mesh_terms: D000319:Adrenergic beta-Antagonists / Q000494:pharmacology*; D000328:Adult; D001341:Autonomic Nervous System / Q000502:physiology; D003627:Data Interpretation, Statistical; D017709:Fractals; D006339:Heart Rate / Q000187:drug effects / Q000502:physiology*; D006801:Humans; D008955:Models, Cardiovascular
chemical_list: D000319:Adrenergic beta-Antagonists