"I Like Sunnie More Than I Expected!": Exploring User Expectation and Perception of an Anthropomorphic LLM-based Conversational Agent for Well-Being Support

• URL: http://arxiv.org/abs/2405.13803v3
• Date: Mon, 07 Oct 2024 04:18:40 GMT
• Title: "I Like Sunnie More Than I Expected!": Exploring User Expectation and Perception of an Anthropomorphic LLM-based Conversational Agent for Well-Being Support
• Authors: Siyi Wu, Julie Y. A. Cachia, Feixue Han, Bingsheng Yao, Tianyi Xie, Xuan Zhao, Dakuo Wang,
• Abstract summary: This study compared users' initial expectations against their post-interaction perceptions of two large language models (LLMs) Results showed that user engagement was high with both systems, and both systems exceeded users' expectations along the utility dimension. These findings suggest that anthropomorphic conversational interaction design may be particularly effective in fostering warmth in mental health support contexts.
• Score: 24.016765989800955
• License: http://creativecommons.org/licenses/by-nc-nd/4.0/
• Abstract: The human-computer interaction (HCI) research community has a longstanding interest in exploring the mismatch between users' actual experiences and expectation toward new technologies, for instance, large language models (LLMs). In this study, we compared users' (N = 38) initial expectations against their post-interaction perceptions of two LLM-powered mental well-being intervention activity recommendation systems. Both systems have a built-in LLM to recommend a personalized well-being intervention activity, but one system (Sunnie) has an anthropomorphic conversational interaction design via elements such as appearance, persona, and natural conversation. Results showed that user engagement was high with both systems, and both systems exceeded users' expectations along the utility dimension, highlighting AI's potential to offer useful intervention activity recommendations. In addition, Sunnie further outperformed the non-anthropomorphic baseline system in relational warmth. These findings suggest that anthropomorphic conversational interaction design may be particularly effective in fostering warmth in mental health support contexts.

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