CogGNN: Cognitive Graph Neural Networks in Generative Connectomics

• URL: http://arxiv.org/abs/2509.10864v1
• Date: Sat, 13 Sep 2025 15:38:56 GMT
• Title: CogGNN: Cognitive Graph Neural Networks in Generative Connectomics
• Authors: Mayssa Soussia, Yijun Lin, Mohamed Ali Mahjoub, Islem Rekik,
• Abstract summary: We introduce the first cognified generative model, CogGNN, to generate brain networks that preserve cognitive features.<n>Our contributions are: (i) a novel cognition-aware generative model with a visual-memory-based loss; (ii) a CBT-learning framework with a co-optimization strategy to yield well-centered, discriminative, cognitively enhanced templates.
• Score: 10.391115198133063
• License: http://creativecommons.org/licenses/by-nc-nd/4.0/
• Abstract: Generative learning has advanced network neuroscience, enabling tasks like graph super-resolution, temporal graph prediction, and multimodal brain graph fusion. However, current methods, mainly based on graph neural networks (GNNs), focus solely on structural and topological properties, neglecting cognitive traits. To address this, we introduce the first cognified generative model, CogGNN, which endows GNNs with cognitive capabilities (e.g., visual memory) to generate brain networks that preserve cognitive features. While broadly applicable, we present CogGNN, a specific variant designed to integrate visual input, a key factor in brain functions like pattern recognition and memory recall. As a proof of concept, we use our model to learn connectional brain templates (CBTs), population-level fingerprints from multi-view brain networks. Unlike prior work that overlooks cognitive properties, CogGNN generates CBTs that are both cognitively and structurally meaningful. Our contributions are: (i) a novel cognition-aware generative model with a visual-memory-based loss; (ii) a CBT-learning framework with a co-optimization strategy to yield well-centered, discriminative, cognitively enhanced templates. Extensive experiments show that CogGNN outperforms state-of-the-art methods, establishing a strong foundation for cognitively grounded brain network modeling.

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