Author

Zhen-Yu Zhang

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Preprint Sep 2026

MedQA-MM: Shortcuts Behind Medical Visual Reasoning

Across six medical multimodal MCQ datasets, this work separate candidate cues from behavioral evidence through prompt- and image-side audits, modality ablations, and matched repairs that preserve the medical target and answer key, showing that medical image-reasoning claims require route-level evidence.

Ben Wang, Yi-Fan Zhang, Jia-Qing Yu et al. · 0 citations