{"slug": "beyond-single-source-cognitive-taskonomy-multi-source-task-relations-through", "title": "Beyond Single-Source Cognitive Taskonomy:Multi-Source Task Relations through fMRI Transfer Learning", "summary": "Researchers extended fMRI cognitive taskonomy from single-source to multi-source transfer across 23 Human Connectome Project task states, training 1,127 models. They found that motor states transfer well within their paradigm but poorly to non-motor targets, while working-memory states are prioritized under budget constraints. The study reveals cross-paradigm-limited motor clusters and highlights the importance of many-to-one task relations.", "body_md": "arXiv:2606.26279v1 Announce Type: new\nAbstract: Cognitive tasks are organized by shared and specialized neural processes. Masked fMRI reconstruction provides a common self-supervised objective for quantifying transfer relations among task states, but existing reconstruction-based taskonomies mainly study one-to-one transfer from a single source task to a target. Here, we extend an fMRI cognitive taskonomy from single-source to multi-source transfer across 23 Human Connectome Project task states and use Boolean Integer Programming (BIP) to analyze budget-constrained task allocation. We train 1,127 task-specific and transfer models. Single-source transfer is directional and paradigm structured: motor states transfer well within the motor paradigm but provide limited support to most non-motor targets, consistent with a shared sensorimotor execution system and effector-specific representations. Multi-source transfer depends on the composition of the source set, suggesting that many-to-one task relations are not fully captured by pairwise taskonomy alone. Across supervision budgets, BIP repeatedly allocates direct supervision to several 0-back and 2-back working-memory states, although these states are not consistently the strongest individual sources. This pattern may reflect the integration of perceptual, attentional, and executive processes in working-memory tasks. Together, these findings reveal a cross-paradigm-limited motor cluster and working-memory states with high priority under the specified global allocation objective. Our study extends reconstruction-based fMRI taskonomy from one-to-one transfer to many-to-one task relations and budget-constrained task dependencies.", "url": "https://wpnews.pro/news/beyond-single-source-cognitive-taskonomy-multi-source-task-relations-through", "canonical_source": "https://arxiv.org/abs/2606.26279", "published_at": "2026-06-26 04:00:00+00:00", "updated_at": "2026-06-26 04:09:03.552020+00:00", "lang": "en", "topics": ["machine-learning", "neural-networks", "computer-vision"], "entities": ["Human Connectome Project", "Boolean Integer Programming"], "alternates": {"html": "https://wpnews.pro/news/beyond-single-source-cognitive-taskonomy-multi-source-task-relations-through", "markdown": "https://wpnews.pro/news/beyond-single-source-cognitive-taskonomy-multi-source-task-relations-through.md", "text": "https://wpnews.pro/news/beyond-single-source-cognitive-taskonomy-multi-source-task-relations-through.txt", "jsonld": "https://wpnews.pro/news/beyond-single-source-cognitive-taskonomy-multi-source-task-relations-through.jsonld"}}