A Time-Series Model of Phase Amplitude Cross Frequency Coupling and Comparison of Spectral Characteristics with Neural Data
Joint Authors
Lepage, Kyle Q.
Vijayan, Sujith
Source
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-03-19
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
Stochastic processes that exhibit cross-frequency coupling (CFC) are introduced.
The ability of these processes to model observed CFC in neural recordings is investigated by comparison with published spectra.
One of the proposed models, based on multiplying a pulsatile function of a low-frequency oscillation (θ) with an unobserved and high-frequency component, yields a process with a spectrum that is consistent with observation.
Other models, such as those employing a biphasic pulsatile function of a low-frequency oscillation, are demonstrated to be less suitable.
We introduce the full stochastic process time series model as a summation of three component weak-sense stationary (WSS) processes, namely, θ, γ, and η, with η a 1/fα noise process.
The γ process is constructed as a product of a latent and unobserved high-frequency process x with a function of the lagged, low-frequency oscillatory component (θ).
After demonstrating that the model process is WSS, an appropriate method of simulation is introduced based upon the WSS property.
This work may be of interest to researchers seeking to connect inhibitory and excitatory dynamics directly to observation in a model that accounts for known temporal dependence or to researchers seeking to examine what can occur in a multiplicative time-domain CFC mechanism.
American Psychological Association (APA)
Lepage, Kyle Q.& Vijayan, Sujith. 2015. A Time-Series Model of Phase Amplitude Cross Frequency Coupling and Comparison of Spectral Characteristics with Neural Data. BioMed Research International،Vol. 2015, no. 2015, pp.1-8.
https://search.emarefa.net/detail/BIM-1054342
Modern Language Association (MLA)
Lepage, Kyle Q.& Vijayan, Sujith. A Time-Series Model of Phase Amplitude Cross Frequency Coupling and Comparison of Spectral Characteristics with Neural Data. BioMed Research International No. 2015 (2015), pp.1-8.
https://search.emarefa.net/detail/BIM-1054342
American Medical Association (AMA)
Lepage, Kyle Q.& Vijayan, Sujith. A Time-Series Model of Phase Amplitude Cross Frequency Coupling and Comparison of Spectral Characteristics with Neural Data. BioMed Research International. 2015. Vol. 2015, no. 2015, pp.1-8.
https://search.emarefa.net/detail/BIM-1054342
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1054342