Investigating cardiorespiratory interaction by cross-spectral analysis of event series

Scha¨fer, Carsten; Rosenblum, Michael G.; Pikovsky, Arkady S.; Kurths, Ju¨rgen
February 2000
AIP Conference Proceedings;2000, Vol. 502 Issue 1, p203
Academic Journal
The human cardiovascular and respiratory systems interact with each other and show effects of modulation and synchronization. Here we present a cross-spectral technique that specifically considers the event-like character of the heartbeat and avoids typical restrictions of other spectral methods. Using models as well as experimental data, we demonstrate how modulation and synchronization can be distinguished. Finally, we compare the method to traditional techniques and to the analysis of instantaneous phases. © 2000 American Institute of Physics.


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