Non-linear dynamics in the beat-to-beat variability of sympathetic activity in decerebrate cats

A. Porta, G. Baselli, N. Montano, T. Gnecchi-Ruseone, F. Lombardi, A. Malliani, S. Cerutti

Research output: Contribution to journalArticle

Abstract

Non-linear interactions between low-frequency rhythms (0.1 Hz) of beat- to-beat variability series of sympathetic discharge and respiratory rhythm (0.3 Hz) are observed in decerebrate artificially ventilated cats. Simple graphical tools as Poincare and recurrence maps are used to detect, in a qualitative way, phase-locking phenomena. Non-parametric bispectral analysis is also carried out to quantify the degree of second-order coupling between oscillations at different frequencies.

Original languageEnglish
Pages (from-to)89-93
Number of pages5
JournalMethods of Information in Medicine
Volume33
Issue number1
Publication statusPublished - 1994

Keywords

  • Non-linear Coupling
  • Sympathetic Discharge
  • Ventilation Cycle

ASJC Scopus subject areas

  • Health Informatics
  • Nursing(all)
  • Health Information Management

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