From Black Boxes to Transparent Minds: Evaluating and Enhancing the Theory of Mind in Multimodal Large Language Models

• URL: http://arxiv.org/abs/2506.14224v1
• Date: Tue, 17 Jun 2025 06:27:42 GMT
• Title: From Black Boxes to Transparent Minds: Evaluating and Enhancing the Theory of Mind in Multimodal Large Language Models
• Authors: Xinyang Li, Siqi Liu, Bochao Zou, Jiansheng Chen, Huimin Ma,
• Abstract summary: This study adopts an approach based on internal mechanisms to provide an interpretability-driven assessment of Theory of Mind (ToM) in large language models (MLLMs)<n>We first construct a multimodal ToM test dataset, GridToM, which incorporates diverse belief testing tasks and perceptual information from multiple perspectives.<n>Next, our analysis shows that attention heads in multimodal large models can distinguish cognitive information across perspectives, providing evidence of ToM capabilities.
• Score: 17.235722538085263
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: 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.

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