Vahid Behzadan

Attention Without Grounding: Causal Evaluation of Visual Explanations in Medical VLMs

Binesh Sadanandan, Vahid Behzadan

Attention and saliency heatmaps are widely used to explain medical Vision-Language Model (VLM) outputs on chest X-rays, yet whether they truly highlight the image evidence driving predictions has not been causally tested. We audit faithfulness via overlap with radiologist boundin…Read more