Title
EEG Characterization of the Alzheimer’s Disease Continuum by Means of Multiscale Entropies
Abstract
Alzheimer's disease (AD) is a neurodegenerative disorder with high prevalence, known for its highly disabling symptoms. The aim of this study was to characterize the alterations in the irregularity and the complexity of the brain activity along the AD continuum. Both irregularity and complexity can be studied applying entropy-based measures throughout multiple temporal scales. In this regard, multiscale sample entropy (MSE) and refined multiscale spectral entropy (rMSSE) were calculated from electroencephalographic (EEG) data. Five minutes of resting-state EEG activity were recorded from 51 healthy controls, 51 mild cognitive impaired (MCI) subjects, 51 mild AD patients (AD(MIL)), 50 moderate AD patients (AD(MOD)), and 50 severe AD patients (AD(SEV)). Our results show statistically significant differences (p-values < 0.05, FDR-corrected Kruskal-Wallis test) between the five groups at each temporal scale. Additionally, average slope values and areas under MSE and rMSSE curves revealed significant changes in complexity mainly for controls vs. MCI, MCI vs. AD(MIL) and AD(MOD) vs. AD(SEV) comparisons (p-values < 0.05, FDR-corrected Mann-Whitney U-test). These findings indicate that MSE and rMSSE reflect the neuronal disturbances associated with the development of dementia, and may contribute to the development of new tools to track the AD progression.
Year
DOI
Venue
2019
10.3390/e21060544
ENTROPY
Keywords
Field
DocType
Electroencephalography (EEG),multiscale sample entropy (MSE),refined multiscale spectral entropy (rMSSE),Alzheimer's disease (AD),mild cognitive impairment (MCI),AD continuum
Disease,Sample entropy,Mild cognitive impairment (MCI),Brain activity and meditation,Spectral entropy,Audiology,Statistics,Cognition,Mathematics,Electroencephalography,Dementia
Journal
Volume
Issue
ISSN
21
6
1099-4300
Citations 
PageRank 
References 
1
0.36
0
Authors
5
Name
Order
Citations
PageRank
Aarón Maturana-Candelas110.36
Carlos Gómez28615.72
Jesús Poza35512.29
Nadia Pinto411.04
Roberto Hornero560367.74