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Multi-Scale Spatiotemporal Graph Neural Network Using Brain Partitioning for Major Depressive Disorder Detection
Zhao Geng1, Wei Guo2, Jiale Wang1
1School of Public Health, Shandong Second Medical University, Weifang 261053, China.
Sensors (Basel, Switzerland)
|May 13, 2026
Summary
This study introduces a new AI method using brainwave patterns (EEG) to detect major depressive disorder (MDD). The advanced graph neural network achieved high accuracy, offering a promising tool for diagnosing depression.
Area of Science:
- Neuroscience
- Artificial Intelligence
- Medical Diagnostics
Background:
- Major depressive disorder (MDD) is a significant global health concern.
- Electroencephalography (EEG) offers a non-invasive method for brain activity assessment.
- Automated EEG analysis shows potential for aiding in MDD diagnosis.
Purpose of the Study:
- To develop a novel deep learning model for detecting MDD using multichannel EEG signals.
- To incorporate brain functional organization, specifically left-right hemispheric interactions, into the detection model.
- To enhance the extraction of features indicative of depressive brain dynamics.
Main Methods:
- A multiscale spatiotemporal graph neural network (GNN) was proposed.
- Left-right hemispheric partitioning was used to encode brain organization.
- Adaptive graphs and graph message passing modeled intra-hemispheric interactions.
- The model was trained and validated on a private resting-state EEG dataset.
Main Results:
- The proposed GNN model achieved 92.21% accuracy in detecting MDD.
- Performance surpassed existing baseline models in a cross-subject validation scenario.
- Ablation experiments confirmed the effectiveness of the proposed methodological components.
Conclusions:
- The novel multiscale spatiotemporal GNN effectively utilizes brain functional organization for MDD detection.
- This approach shows significant promise for the auxiliary screening and diagnosis of major depressive disorder.
- Integrating neurophysiological data with advanced AI can improve mental health diagnostics.
