Measures of Coupling between Neural Populations Based on Granger Causality Principle

Maciej Kaminski , Aneta Brzezicka , Jan Kamiński , Katarzyna J. Blinowska

Abstract

This paper shortly reviews the measures used to estimate neural synchronization in experimental settings. Our focus is on multivariate measures of dependence based on the Granger causality (G-causality) principle, their applications and performance in respect of robustness to noise, volume conduction, common driving, and presence of a “weak node”. Application of G-causality measures to EEG, intracranial signals and fMRI time series is addressed. G-causality based measures defined in the frequency domain allow the synchronization between neural populations and the directed propagation of their electrical activity to be determined. The time-varying G-causality based measure Short-time Directed Transfer Function (SDTF) supplies information on the dynamics of synchronization and the organization of neural networks. Inspection of effective connectivity patterns indicates a modular structure of neural networks, with a stronger coupling within modules than between them. The hypothetical plausible mechanism of information processing, suggested by the identified synchronization patterns, is communication between tightly coupled modules intermitted by sparser interactions providing synchronization of distant structures.
Author Maciej Kaminski
Maciej Kaminski,,
-
, Aneta Brzezicka (Wydział Psychologii)
Aneta Brzezicka,,
- Wydział Psychologii
, Jan Kamiński
Jan Kamiński,,
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, Katarzyna J. Blinowska
Katarzyna J. Blinowska,,
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Journal seriesFrontiers in Computational Neuroscience, ISSN 1662-5188, (A 30 pkt)
Issue year2016
Vol10
Pages1-8
Publication size in sheets5.7
Keywords in Polishneuralsynchronization, Grangercausality, Directed Transfer Function, effective connectivity, causal coupling
ASJC Classification2804 Cellular and Molecular Neuroscience; 2801 Neuroscience (miscellaneous)
DOIDOI:10.3389/fncom.2016.00114
URL http://journal.frontiersin.org/article/10.3389/fncom.2016.00114
Languageen angielski
File
KaminskiBrzezicka_EtAll2016.pdf 1.23 MB
Oświadczenie_publ_Frontiers.pdf 102.18 KB
Score (nominal)30
Publication indicators Scopus SNIP (Source Normalised Impact per Paper): 2016 = 0.791; WoS Impact Factor: 2016 = 1.821 (2) - 2016=2.388 (5)
Citation count*11 (2020-09-23)
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