Why It Hurts: Identifying the Drivers of Negative Thoughts in Emotional Support Conversations

Hainiu Xu, Zhaoyue Sun, Hanqi Yan, Jinhua Du, Caroline Catmur, Yulan He


Abstract
Large Language Models (LLMs) are increasingly used for emotional support tasks, such as negative thought reframing. This task relies on modifying cognitive appraisals, the subjective interpretation of events that elicit negative emotions, which is typically conceptualized along multiple discrete dimensions. Current LLM-based frameworks model cognitive appraisal by exhaustively evaluating all possible dimensions, but they fail to account for the varying saliency of these dimensions across different contexts. In this work, we investigate a vital yet overlooked question: "Can LLMs infer the salient appraisal dimensions from emotional support conversations?" To address this question, we introduce the AppraiSal benchmark, containing 996 emotional support conversations with human-annotated mental states, including salient cognitive appraisal dimensions. Furthermore, we propose PRISM, a multi-agent probabilistic framework grounded in Bayesian Inverse Planning, designed to improve LLMs’ ability to identify context-specific appraisal dimensions. Experimental results show that PRISM brings improvements to LLMs across various sizes, particularly in identifying the most salient appraisal dimensions
Anthology ID:
2026.emnlp-main.722
Volume:
Proceedings of the 2026 Conference on Empirical Methods in Natural Language Processing
Month:
October
Year:
2026
Address:
Budapest, Hungary
Editors:
Hung-Yi Lee, Sunipa Dev, Jessy Li, Desmond Elliott
Venue:
EMNLP
SIG:
SIGDAT
Publisher:
Association for Computational Linguistics
Note:
Pages:
16754–16797
Language:
URL:
https://aclanthology.org/2026.emnlp-main.722/
DOI:
Bibkey:
Cite (ACL):
Hainiu Xu, Zhaoyue Sun, Hanqi Yan, Jinhua Du, Caroline Catmur, and Yulan He. 2026. Why It Hurts: Identifying the Drivers of Negative Thoughts in Emotional Support Conversations. In Proceedings of the 2026 Conference on Empirical Methods in Natural Language Processing, pages 16754–16797, Budapest, Hungary. Association for Computational Linguistics.
Cite (Informal):
Why It Hurts: Identifying the Drivers of Negative Thoughts in Emotional Support Conversations (Xu et al., EMNLP 2026)
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PDF:
https://aclanthology.org/2026.emnlp-main.722.pdf