Paper Info
Title
Volume Conduction Effects on Connectivity Metrics: Application of Network Parameters to Characterize Alzheimer’s Disease Continuum
Abstract
This study had two main objectives: (i) to study the effects of volume conduction on different connectivity metrics (Amplitude Envelope Correlation AEC, Phase Lag Index PLI, and Magnitude Squared Coherence MSCOH), comparing the coupling patterns at electrode- and sensor-level; and (ii) to characterize spontaneous EEG activity during different stages of Alzheimer's disease (AD) continuum by means of three complementary network parameters: node degree (k), characteristic path length (L), and clustering coefficient (C). Our results revealed that PLI and AEC are weakly influenced by volume conduction compared to MSCOH, but they are not immune to it. Furthermore, network parameters obtained from PLI showed that AD continuum is characterized by an increase in L and C in low frequency bands, suggesting lower integration and higher segregation as the disease progresses. These network changes reflect the abnormalities during AD continuum and are mainly due to neuronal alterations, because PLI is slightly affected by volume conduction effects.
Year
DOI
Venue
2020
10.1109/EMBC44109.2020.9176398
2020 42nd Annual International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC)
Keywords
DocType
Volume
Alzheimer Disease,Benchmarking,Brain,Electroencephalography,Humans,Nerve Net
Conference
2020
ISSN
ISBN
Citations 
2375-7477
978-1-7281-1991-5
0
PageRank 
References 
Authors
0.34
7
8
Name
Order
Citations
PageRank
Saul J Ruiz-Gomez100.34
Carlos Gomez200.34
Jesús Poza35512.29
Marcos Revilla-Vallejo400.34
Victor Gutierrez-de-Pablo500.34
Victor Rodriguez-Gonzalez600.34
Aaron Maturana-Candelas700.34
Roberto Hornero860367.74