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ORIGINAL RESEARCH article

Front. Neurosci.

Sec. Brain Imaging Methods

Volume 19 - 2025 | doi: 10.3389/fnins.2025.1555657

This article is part of the Research TopicAdvancing Early Alzheimer's Detection Through Multimodal Neuroimaging TechniquesView all 9 articles

A multi-graph convolutional network method for Alzheimer's disease diagnosis based on multi-frequency EEG data with dual-mode connectivity

Provisionally accepted
Qingjie  XuQingjie Xu1Libing  AnLibing An2Haiqiang  YangHaiqiang Yang1*Keum-Shik  HongKeum-Shik Hong3
  • 1Institute for Future, School of Automation, Qingdao University, Qingdao, China
  • 2School of Pharmaceutical Sciences, Taishan Medical University, Tai'an, Shandong Province, China
  • 3School of Mechanical Engineering, Pusan National University, Busan, Republic of Korea

The final, formatted version of the article will be published soon.

Objective: Alzheimer's disease (AD) is mainly identified by cognitive function deterioration. Diagnosing AD at early stages poses significant challenges for both researchers and healthcare professionals due to the subtle nature of early brain changes. Currently, electroencephalography (EEG) is widely used in the study of neurodegenerative diseases. However, most existing research relies solely on functional connectivity methods to infer inter-regional brain connectivity, overlooking the importance of spatial connections. Moreover, many existing approaches fail to fully integrate multifrequency EEG features, limiting the comprehensive understanding of dynamic brain activity across different frequency bands. This study aims to address these limitations by developing a novel graph-based deep learning model that fully utilizes both functional and structural information from multi-frequency EEG data.model for AD diagnosis. This method integrates both functional and structural connectivity to more thoroughly capture the relationships among brain regions. By extracting differential entropy (DE) features from five distinct frequency bands of EEG signals for each segment and using graph convolutional networks (GCNs) to aggregate these features, the model effectively distinguishes between AD and healthy controls (HC).The outcomes show that the developed model outperforms existing methods, achieving 96.15% accuracy and 98.74% AUC in AD and HC classification.Conclusions: These findings highlight the potential of the MF-MGCN model as a clinical tool for Alzheimer's disease diagnosis. This approach could help clinicians detect Alzheimer's at earlier stages, enabling timely intervention and personalized treatment plans.

Keywords: Alzheimer's disease diagnosis, EEG, multi-graph convolutional network, dual-mode connectivity, Multi-frequency analysis

Received: 06 Jan 2025; Accepted: 12 Jun 2025.

Copyright: © 2025 Xu, An, Yang and Hong. 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) or licensor 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.

* Correspondence: Haiqiang Yang, Institute for Future, School of Automation, Qingdao University, Qingdao, China

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