On Emergent Social World Models -- Evidence for Functional Integration of Theory of Mind and Pragmatic Reasoning in Language Models

Fuente: arXiv
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Auteurs principaux: Tsvilodub, Polina, Klumpp, Jan-Felix, Mohammadpour, Amir, Hu, Jennifer, Franke, Michael
Format: Preprint
Publié: 2026
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author Tsvilodub, Polina
Klumpp, Jan-Felix
Mohammadpour, Amir
Hu, Jennifer
Franke, Michael
author_facet Tsvilodub, Polina
Klumpp, Jan-Felix
Mohammadpour, Amir
Hu, Jennifer
Franke, Michael
contents This paper investigates whether LMs recruit shared computational mechanisms for general Theory of Mind (ToM) and language-specific pragmatic reasoning in order to contribute to the general question of whether LMs may be said to have emergent "social world models", i.e., representations of mental states that are repurposed across tasks (the functional integration hypothesis). Using behavioral evaluations and causal-mechanistic experiments via functional localization methods inspired by cognitive neuroscience, we analyze LMs' performance across seven subcategories of ToM abilities (Beaudoin et al., 2020) on a substantially larger localizer dataset than used in prior like-minded work. Results from stringent hypothesis-driven statistical testing offer suggestive evidence for the functional integration hypothesis, indicating that LMs may develop interconnected "social world models" rather than isolated competencies. This work contributes novel ToM localizer data, methodological refinements to functional localization techniques, and empirical insights into the emergence of social cognition in artificial systems.
format Preprint
id arxiv_https___arxiv_org_abs_2602_10298
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle On Emergent Social World Models -- Evidence for Functional Integration of Theory of Mind and Pragmatic Reasoning in Language Models
Tsvilodub, Polina
Klumpp, Jan-Felix
Mohammadpour, Amir
Hu, Jennifer
Franke, Michael
Computation and Language
This paper investigates whether LMs recruit shared computational mechanisms for general Theory of Mind (ToM) and language-specific pragmatic reasoning in order to contribute to the general question of whether LMs may be said to have emergent "social world models", i.e., representations of mental states that are repurposed across tasks (the functional integration hypothesis). Using behavioral evaluations and causal-mechanistic experiments via functional localization methods inspired by cognitive neuroscience, we analyze LMs' performance across seven subcategories of ToM abilities (Beaudoin et al., 2020) on a substantially larger localizer dataset than used in prior like-minded work. Results from stringent hypothesis-driven statistical testing offer suggestive evidence for the functional integration hypothesis, indicating that LMs may develop interconnected "social world models" rather than isolated competencies. This work contributes novel ToM localizer data, methodological refinements to functional localization techniques, and empirical insights into the emergence of social cognition in artificial systems.
title On Emergent Social World Models -- Evidence for Functional Integration of Theory of Mind and Pragmatic Reasoning in Language Models
topic Computation and Language
url https://arxiv.org/abs/2602.10298