Assessing the Convolutedness of Multivariate Physiological Time Series

Castiglioni, Paolo ;   Merati, Giampiero ;   Faini, Andrea

Tags Multivariate signal processingBiomedical simulation involving signal processingSignal processing in physiological systems

A feature of time-series variability that may reveal underlying complex dynamics is the degree of "convolutedness". For multivariate...

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Directionality in Cardiovascular Variability Interactions During Head-Down Tilt Test

Porta, Alberto ;   Marchi, Andrea ;   Bari, Vlasta ;   Catai, Aparecida ;   Guzzetti, Stefano ;   Raimondi, Ferdinando ;   Colombo, Riccardo

Tags Signal processing in physiological systemsCausalityMultivariate signal processing

A nonlinear model-free Granger causality approach was exploited to quantify the strength of the causal relation along cardiac baroreflex and...

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Investigating Cardiac and Respiratory Determinants of Heart Rate Variability in an Information-Theoretic Framework

Faes, Luca ;   Widjaja, Devy ;   Van Huffel, Sabine ;   Nollo, Giandomenico

Tags CausalityMultivariate signal processingSignal processing in physiological systems

This study was aimed at comparing two alternative information-theoretic approaches for the combined analysis of heart rate variability (HRV)...

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Multivariate Nonstationary Modeling of Cerebral Hemodynamics

Kostoglou, Kyriaki ;   Debert, Chantel T. ;   Poulin, Marc J. ;   Mitsis, Georgios D.

Tags Multivariate signal processingSignal processing in physiological systemsSignals and systems

We extracted adaptive univariate and multivariate dynamic models of cerebral hemodynamics during resting and hypercapnic conditions using a...

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Symbolic Dynamics of Respiratory Cycle Related Sleep EEG in Children with Sleep Disordered Breathing

Immanuel, Sarah Anita ;   Kohler, Mark ;   Kabir, Muammar Muhammad ;   Saint, David ;   Baumert, Mathias

Tags Nonlinear analysis of biomedical signals

Childhood sleep disordered breathing (SDB) is characterized by an increased work of breathing, restless night sleep and excessive daytime...

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Three-Dimensional Segmented Poincare Plot Analysis - a New Approach of Cardiovascular and Cardiorespiratory Regulation Analysis

Fischer, Claudia ;   Voss, Andreas

Tags Multivariate signal processingNonlinear coupling of biomedical signalsNonlinear dynamics in biomedical signals

Hypertensive pregnancy disorders affect 6 to 8 percent of all pregnancies which can cause severe complications for the mother and the...

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