multi-source-fmri-taskonomy

name	multi-source-fmri-taskonomy
description	Multi-source fMRI cognitive taskonomy framework using transfer learning for quantifying task relations. Extends single-source to multi-source transfer with masked reconstruction. Activation: fMRI taskonomy, cognitive task, transfer learning, brain encoding, task relation.

Overview

Paper ID: arXiv:2606.26279v1 Title: Beyond Single-Source Cognitive Taskonomy: Multi-Source Task Relations through fMRI Transfer Learning Authors: Junfeng Xia, Wendu Li, Mengjiao Zhang Published: 2026-06-24 Categories: cs.CV, q-bio.NC URL: https://arxiv.org/abs/2606.26279v1

Core Innovation

Extends fMRI cognitive taskonomy from single-source to multi-source transfer learning:

• Traditional: one-to-one transfer (single source → target)
• This work: multi-source transfer quantifying task relations across multiple source tasks simultaneously

Key Methodology

1. Masked fMRI Reconstruction as self-supervised objective
2. Transfer Relation Quantification among cognitive task states
3. Multi-Source Taskonomy capturing shared and specialized neural processes

Technical Framework

• Self-supervised learning via masked reconstruction
• Transfer learning analysis across fMRI task states
• Quantification of task similarity/dissimilarity

Applications

• Cognitive task taxonomy construction
• Neural representation analysis
• Brain encoding model comparison
• Cross-task transfer prediction

Key Concepts

• Taskonomy: Task relationship taxonomy based on neural representations
• Transfer Learning: Knowledge transfer between cognitive tasks
• Masked Reconstruction: Self-supervised objective for neural representation learning

Activation Keywords

• fMRI taskonomy
• cognitive task relation
• multi-source transfer
• brain encoding
• neural task taxonomy
• fMRI transfer learning

Related Skills

• brain-foundation-model-inversion
• meta-learning-in-context-brain-decoding
• fcn-llm-brain-network-understanding
• geometric-brain-dynamics-mapping

Pitfalls

• Requires high-quality fMRI data across multiple tasks
• Multi-source transfer complexity vs single-source simplicity
• Task selection bias in taskonomy construction

References

• Paper: https://arxiv.org/pdf/2606.26279v1.pdf
• Code: (check paper for availability)