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Main Authors: Li, Xinyang, Liu, Siqi, Zou, Bochao, Chen, Jiansheng, Ma, Huimin
Format: Preprint
Published: 2025
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Online Access:https://arxiv.org/abs/2506.14224
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author Li, Xinyang
Liu, Siqi
Zou, Bochao
Chen, Jiansheng
Ma, Huimin
author_facet Li, Xinyang
Liu, Siqi
Zou, Bochao
Chen, Jiansheng
Ma, Huimin
contents As large language models evolve, there is growing anticipation that they will emulate human-like Theory of Mind (ToM) to assist with routine tasks. However, existing methods for evaluating machine ToM focus primarily on unimodal models and largely treat these models as black boxes, lacking an interpretative exploration of their internal mechanisms. In response, this study adopts an approach based on internal mechanisms to provide an interpretability-driven assessment of ToM in multimodal large language models (MLLMs). Specifically, we first construct a multimodal ToM test dataset, GridToM, which incorporates diverse belief testing tasks and perceptual information from multiple perspectives. Next, our analysis shows that attention heads in multimodal large models can distinguish cognitive information across perspectives, providing evidence of ToM capabilities. Furthermore, we present a lightweight, training-free approach that significantly enhances the model's exhibited ToM by adjusting in the direction of the attention head.
format Preprint
id arxiv_https___arxiv_org_abs_2506_14224
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle From Black Boxes to Transparent Minds: Evaluating and Enhancing the Theory of Mind in Multimodal Large Language Models
Li, Xinyang
Liu, Siqi
Zou, Bochao
Chen, Jiansheng
Ma, Huimin
Artificial Intelligence
As large language models evolve, there is growing anticipation that they will emulate human-like Theory of Mind (ToM) to assist with routine tasks. However, existing methods for evaluating machine ToM focus primarily on unimodal models and largely treat these models as black boxes, lacking an interpretative exploration of their internal mechanisms. In response, this study adopts an approach based on internal mechanisms to provide an interpretability-driven assessment of ToM in multimodal large language models (MLLMs). Specifically, we first construct a multimodal ToM test dataset, GridToM, which incorporates diverse belief testing tasks and perceptual information from multiple perspectives. Next, our analysis shows that attention heads in multimodal large models can distinguish cognitive information across perspectives, providing evidence of ToM capabilities. Furthermore, we present a lightweight, training-free approach that significantly enhances the model's exhibited ToM by adjusting in the direction of the attention head.
title From Black Boxes to Transparent Minds: Evaluating and Enhancing the Theory of Mind in Multimodal Large Language Models
topic Artificial Intelligence
url https://arxiv.org/abs/2506.14224