Don't Get Too Excited -- Eliciting Emotions in LLMs

• URL: http://arxiv.org/abs/2503.02457v1
• Date: Tue, 04 Mar 2025 10:06:41 GMT
• Title: Don't Get Too Excited -- Eliciting Emotions in LLMs
• Authors: Gino Franco Fazzi, Julie Skoven Hinge, Stefan Heinrich, Paolo Burelli,
• Abstract summary: This paper investigates the challenges of affect control in large language models (LLMs)<n>We evaluate state-of-the-art open-weight LLMs to assess their affective expressive range.<n>We quantify the models' capacity to express a wide spectrum of emotions and how they fluctuate during interactions.
• Score: 1.8399318639816038
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: This paper investigates the challenges of affect control in large language models (LLMs), focusing on their ability to express appropriate emotional states during extended dialogues. We evaluated state-of-the-art open-weight LLMs to assess their affective expressive range in terms of arousal and valence. Our study employs a novel methodology combining LLM-based sentiment analysis with multiturn dialogue simulations between LLMs. We quantify the models' capacity to express a wide spectrum of emotions and how they fluctuate during interactions. Our findings reveal significant variations among LLMs in their ability to maintain consistent affect, with some models demonstrating more stable emotional trajectories than others. Furthermore, we identify key challenges in affect control, including difficulties in producing and maintaining extreme emotional states and limitations in adapting affect to changing conversational contexts. These findings have important implications for the development of more emotionally intelligent AI systems and highlight the need for improved affect modelling in LLMs.

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