The Role of Quantitative EEG in the Diagnosis of Alzheimer’s Disease

Alzheimer’s disease is the most prevalent neurodegenerative disorder leading to progressive cognitive decline and functional impairment. Although advanced neuroimaging and cerebrospinal fluid biomarkers have improved early detection, their high costs, invasiveness, and limited accessibility restrict...

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Main Author: Vasileios Papaliagkas
Format: Article
Language:English
Published: MDPI AG 2025-08-01
Series:Diagnostics
Subjects:
Online Access:https://www.mdpi.com/2075-4418/15/15/1965
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author Vasileios Papaliagkas
author_facet Vasileios Papaliagkas
author_sort Vasileios Papaliagkas
collection DOAJ
description Alzheimer’s disease is the most prevalent neurodegenerative disorder leading to progressive cognitive decline and functional impairment. Although advanced neuroimaging and cerebrospinal fluid biomarkers have improved early detection, their high costs, invasiveness, and limited accessibility restrict universal screening. Quantitative electroencephalography (qEEG) offers a non-invasive and cost-effective alternative for assessing neurophysiological changes associated with AD. This review critically evaluates current evidence on EEG biomarkers, including spectral, connectivity, and complexity measures, discussing their pathophysiological basis, diagnostic accuracy, and clinical utility in AD. Limitations and future perspectives, especially in developing standardized protocols and integrating machine learning techniques, are also addressed.
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spelling doaj-art-a3d806e24be847e1b88ba4d19f63d9462025-08-20T04:00:50ZengMDPI AGDiagnostics2075-44182025-08-011515196510.3390/diagnostics15151965The Role of Quantitative EEG in the Diagnosis of Alzheimer’s DiseaseVasileios Papaliagkas0Department of Biomedical Sciences, International Hellenic University, 57400 Thessaloniki, GreeceAlzheimer’s disease is the most prevalent neurodegenerative disorder leading to progressive cognitive decline and functional impairment. Although advanced neuroimaging and cerebrospinal fluid biomarkers have improved early detection, their high costs, invasiveness, and limited accessibility restrict universal screening. Quantitative electroencephalography (qEEG) offers a non-invasive and cost-effective alternative for assessing neurophysiological changes associated with AD. This review critically evaluates current evidence on EEG biomarkers, including spectral, connectivity, and complexity measures, discussing their pathophysiological basis, diagnostic accuracy, and clinical utility in AD. Limitations and future perspectives, especially in developing standardized protocols and integrating machine learning techniques, are also addressed.https://www.mdpi.com/2075-4418/15/15/1965qEEGspectral analysisAlzheimer’s disease
spellingShingle Vasileios Papaliagkas
The Role of Quantitative EEG in the Diagnosis of Alzheimer’s Disease
Diagnostics
qEEG
spectral analysis
Alzheimer’s disease
title The Role of Quantitative EEG in the Diagnosis of Alzheimer’s Disease
title_full The Role of Quantitative EEG in the Diagnosis of Alzheimer’s Disease
title_fullStr The Role of Quantitative EEG in the Diagnosis of Alzheimer’s Disease
title_full_unstemmed The Role of Quantitative EEG in the Diagnosis of Alzheimer’s Disease
title_short The Role of Quantitative EEG in the Diagnosis of Alzheimer’s Disease
title_sort role of quantitative eeg in the diagnosis of alzheimer s disease
topic qEEG
spectral analysis
Alzheimer’s disease
url https://www.mdpi.com/2075-4418/15/15/1965
work_keys_str_mv AT vasileiospapaliagkas theroleofquantitativeeeginthediagnosisofalzheimersdisease
AT vasileiospapaliagkas roleofquantitativeeeginthediagnosisofalzheimersdisease