Negative Correlation Between Functional Connectivity and Small-Worldness in the Alpha Frequency Band of a Healthy Brain

The aim of the study was to analyze the relationship between resting state electroencephalographic (EEG) alpha functional connectivity (FC) and small-world organization. For that purpose, Pearson correlation was calculated between FC and small-worldness (SW). Three undirected FC measures were used:...

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Autores principales: Päeske, Laura, Hinrikus, Hiie, Lass, Jaanus, Raik, Jaan, Bachmann, Maie
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2020
Materias:
Physiology
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7437013/
https://www.ncbi.nlm.nih.gov/pubmed/32903521
http://dx.doi.org/10.3389/fphys.2020.00910
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author Päeske, Laura
Hinrikus, Hiie
Lass, Jaanus
Raik, Jaan
Bachmann, Maie
author_facet Päeske, Laura
Hinrikus, Hiie
Lass, Jaanus
Raik, Jaan
Bachmann, Maie
author_sort Päeske, Laura
collection PubMed
description The aim of the study was to analyze the relationship between resting state electroencephalographic (EEG) alpha functional connectivity (FC) and small-world organization. For that purpose, Pearson correlation was calculated between FC and small-worldness (SW). Three undirected FC measures were used: magnitude-squared coherence (MSC), imaginary part of coherency (ICOH), and synchronization likelihood (SL). As a result, statistically significant negative correlation occurred between FC and SW for all three FC measures. Small-worldness of MSC and SL were mostly above 1, but lower than 1 for ICOH, suggesting that functional EEG networks did not have small-world properties. Based on the results of the current study, we suggest that decreased alpha small-world organization is compensated with increased connectivity of alpha oscillations in a healthy brain.
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spelling pubmed-74370132020-09-03 Negative Correlation Between Functional Connectivity and Small-Worldness in the Alpha Frequency Band of a Healthy Brain Päeske, Laura Hinrikus, Hiie Lass, Jaanus Raik, Jaan Bachmann, Maie Front Physiol Physiology The aim of the study was to analyze the relationship between resting state electroencephalographic (EEG) alpha functional connectivity (FC) and small-world organization. For that purpose, Pearson correlation was calculated between FC and small-worldness (SW). Three undirected FC measures were used: magnitude-squared coherence (MSC), imaginary part of coherency (ICOH), and synchronization likelihood (SL). As a result, statistically significant negative correlation occurred between FC and SW for all three FC measures. Small-worldness of MSC and SL were mostly above 1, but lower than 1 for ICOH, suggesting that functional EEG networks did not have small-world properties. Based on the results of the current study, we suggest that decreased alpha small-world organization is compensated with increased connectivity of alpha oscillations in a healthy brain. Frontiers Media S.A. 2020-08-12 /pmc/articles/PMC7437013/ /pubmed/32903521 http://dx.doi.org/10.3389/fphys.2020.00910 Text en Copyright © 2020 Päeske, Hinrikus, Lass, Raik and Bachmann. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Physiology
Päeske, Laura
Hinrikus, Hiie
Lass, Jaanus
Raik, Jaan
Bachmann, Maie
Negative Correlation Between Functional Connectivity and Small-Worldness in the Alpha Frequency Band of a Healthy Brain
title Negative Correlation Between Functional Connectivity and Small-Worldness in the Alpha Frequency Band of a Healthy Brain
title_full Negative Correlation Between Functional Connectivity and Small-Worldness in the Alpha Frequency Band of a Healthy Brain
title_fullStr Negative Correlation Between Functional Connectivity and Small-Worldness in the Alpha Frequency Band of a Healthy Brain
title_full_unstemmed Negative Correlation Between Functional Connectivity and Small-Worldness in the Alpha Frequency Band of a Healthy Brain
title_short Negative Correlation Between Functional Connectivity and Small-Worldness in the Alpha Frequency Band of a Healthy Brain
title_sort negative correlation between functional connectivity and small-worldness in the alpha frequency band of a healthy brain
topic Physiology
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7437013/
https://www.ncbi.nlm.nih.gov/pubmed/32903521
http://dx.doi.org/10.3389/fphys.2020.00910
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