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Abnormal EEG microstates in Alzheimer's disease: predictors of β-amyloid deposition degree and disease classification.

Authors :
Yan, Yibing
Gao, Manman
Geng, Zhi
Wu, Yue
Xiao, Guixian
Wang, Lu
Pang, Xuerui
Yang, Chaoyi
Zhou, Shanshan
Li, Hongru
Hu, Panpan
Wu, Xingqi
Wang, Kai
Source :
GeroScience; Oct2024, Vol. 46 Issue 5, p4779-4792, 14p
Publication Year :
2024

Abstract

Electroencephalography (EEG) microstates are used to study cognitive processes and brain disease-related changes. However, dysfunctional patterns of microstate dynamics in Alzheimer's disease (AD) remain uncertain. To investigate microstate changes in AD using EEG and assess their association with cognitive function and pathological changes in cerebrospinal fluid (CSF). We enrolled 56 patients with AD and 38 age- and sex-matched healthy controls (HC). All participants underwent various neuropsychological assessments and resting-state EEG recordings. Patients with AD also underwent CSF examinations to assess biomarkers related to the disease. Stepwise regression was used to analyze the relationship between changes in microstate patterns and CSF biomarkers. Receiver operating characteristics analysis was used to assess the potential of these microstate patterns as diagnostic predictors for AD. Compared with HC, patients with AD exhibited longer durations of microstates C and D, along with a decreased occurrence of microstate B. These microstate pattern changes were associated with Stroop Color Word Test and Activities of Daily Living scale scores (all P < 0.05). Mean duration, occurrences of microstate B, and mean occurrence were correlated with CSF Aβ <subscript>1–42</subscript> levels, while duration of microstate C was correlated with CSF Aβ <subscript>1–40</subscript> levels in AD (all P < 0.05). EEG microstates are used to predict AD classification with moderate accuracy. Changes in EEG microstate patterns in patients with AD correlate with cognition and disease severity, relate to Aβ deposition, and may be useful predictors for disease classification. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
25092715
Volume :
46
Issue :
5
Database :
Complementary Index
Journal :
GeroScience
Publication Type :
Academic Journal
Accession number :
179144318
Full Text :
https://doi.org/10.1007/s11357-024-01181-5