Graph-BrainConvNet: A One-class GCN-based approach for MCI detection from source-level MEG

Research output: Contribution to conferencePaperpeer-review

Abstract

—Mild cognitive impairment (MCI) is a neurocognitive disorder that increases the risk of dementia in older age, making early detection crucial for subsequent risk reduction strategies. Existing studies with advanced neuroimaging techniques mostly focused on finding MCI-related neuromarkers either during resting state (without evaluating their cognitive ability) or during complex cognitive tasks, which can be challenging for non-MCI geriatrics as well. This paper introduces a novel feasibility experiment to identify neural correlates related to attention from MCI patients’ while watching a silent movie with random auditory distractions. A novel one-class graph convolutional neural network (GCN)-based model is proposed to detect MCI neuromarkers using source-level functional brain connectivity and spectral-temporal features, achieving a classif ication accuracy of 92.63±0.96% between control participants (not diagnosed with MCI) and MCI for the gamma rhythm. MCI patients showed higher responses to auditory distractors than control participants (CPs), indicating cognitive decline. Our experiment reveals potential auditory gating deficits in MCI, which the proposed GCN model can capture for early diagnosis.
Original languageEnglish
Pages1-7
Number of pages7
DOIs
Publication statusAccepted/In press - 8 Apr 2025
Event47th Annual International Conference of the IEEE Engineering in Medicine and Biology Society - Copenhagen, Denmark
Duration: 14 Jul 2025 → …
https://embc.embs.org/2025/

Conference

Conference47th Annual International Conference of the IEEE Engineering in Medicine and Biology Society
Abbreviated titleEMBC 2025
Country/TerritoryDenmark
CityCopenhagen
Period14/07/25 → …
Internet address

Funding

K.S. was funded by Ulster University’s Vice Chancellor Research Scholarship. The acquisition and collation of the experimental data was supported by the European Union’s INTERREG VA Programme, managed by the Special EU Programmes (SEUPB; Centre for Personalised Medicine, IVA 5036) (J.M.S.-B., D.K., G.P., P.L.M., K.W.-L.), with additional support by the Northern Ireland Functional Brain Mapping Project Facility (1303/101154803) and funded by Invest Northern Ireland and the University of Ulster (G.P., K.W.-L.). The views and opinions expressed in this article do not necessarily reflect those of the European Commission or the Special EU Programmes Body (SEUPB). We are grateful for access to the Tier 2 High Performance Computing resources provided by the Northern Ireland High Performance Computing (NI-HPC) facility funded by the UK Engineering and Physical Sciences Research Council (EPSRC), Grant No. EP/T022175/1.

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 3 - Good Health and Well-being
    SDG 3 Good Health and Well-being
  2. SDG 4 - Quality Education
    SDG 4 Quality Education
  3. SDG 10 - Reduced Inequalities
    SDG 10 Reduced Inequalities

Keywords

  • Mild Cognitive Impairment
  • Graph Convolutional Network
  • magnetoencephalography
  • source localization
  • linearly constrained minimumvariance (LCMV) beamforming
  • functional brain connectivity
  • imaginary part of coherency
  • Neural Networks, Computer
  • Humans
  • Cognitive Dysfunction/diagnosis
  • Male
  • Brain/physiopathology
  • Magnetoencephalography/methods
  • Female
  • Aged

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