Direction of coupling from phases of interacting oscillators: A permutation information approach.

Bahraminasab, Alireza and Ghasemi, Fatemeh and Stefanovska, Aneta and McClintock, Peter V. E. and Kantz, Holger (2008) Direction of coupling from phases of interacting oscillators: A permutation information approach. Physical review letters, 100 (8). 084101. ISSN 1079-7114

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Abstract

We introduce a directionality index for a time series based on a comparison of neighboring values. It can distinguish unidirectional from bidirectional coupling, as well as reveal and quantify asymmetry in bidirectional coupling. It is tested on a numerical model of coupled van der Pol oscillators, and applied to cardiorespiratory data from healthy subjects. There is no need for preprocessing and fine-tuning the parameters, which makes the method very simple, computationally fast and robust.

Item Type:
Journal Article
Journal or Publication Title:
Physical review letters
Uncontrolled Keywords:
/dk/atira/pure/researchoutput/libraryofcongress/qc
Subjects:
ID Code:
11265
Deposited By:
Deposited On:
06 Aug 2008 20:04
Refereed?:
Yes
Published?:
Published
Last Modified:
05 Dec 2020 00:37