Understanding and Codesigning Photo-based Reminiscence with Older Adults (with Zhongyue Zhang, Lina Xu, Xingkai Wang, and Mingming Fan), Proceedings of the ACM on Human-Computer Interaction 9, no. 2 (2025): 1-30.
Abstract: Reminiscence, the act of revisiting past memories, is crucial for self-reflection and social interaction, significantly enhancing psychological well-being, life satisfaction, and self-identity among older adults. In HCI and CSCW, there is growing interest in leveraging technology to support reminiscence for older adults. However, understanding how older adults actively use technologies for realistic and practical reminiscence in their daily lives remains limited. This paper addresses this gap by providing an in-depth, empirical understanding of technology-mediated, photo-based reminiscence among older adults. Through a two-part study involving 20 older adults, we conducted semi-structured interviews and co-design sessions to explore their use and vision of digital technologies for photo-based reminiscence activities. Based on these insights, we propose design implications to make future reminiscence technologies more accessible and empowering for older adults.
Interpersonal Trust and Trustworthiness in a High-Immersion Virtual Environment: A Trust Game Experiment (with Hao Ling and Xiangyu Xu). Under review at the Journal of Economic Behavior & Organization.
Abstract: Understanding interpersonal trust within high-immersion virtual environments (HIVE) that underpin emerging digital platforms like the metaverse is crucial. This study conducts the first replication of the canonical trust game in a HIVE, where two participants in separate real-world spaces play an anonymous one-shot trust game in a virtual lab. Our design includes three conditions: a VR baseline group without any avatar interaction, an avatar-presence group where participants were briefly exposed to the counterpart‘s avatar visually, and a physical control group that made decisions in a traditional lab setting. We find no significant difference in trust or trustworthiness between the physical and VR baseline groups, while visual avatar presence significantly increases trust. Furthermore, male participants show higher trust propensity than females, and participants with more gaming experience exhibit greater trustworthiness. These results validate the HIVE as a powerful platform for experimental economics and offer practical insights for designing virtual environments where trust is essential.
Presented at the 2025 ESA World Meeting, Beijing, China.
Previous title: A Replication of the Trust Game in a High-Immersion Virtual Reality Environment.
Trust Formation in AI Delegation: The Interplay of Explainability and Anthropomorphism (with Chenyang Li, Zhixuan Deng, and Hao Ling). Conditionally accepted with minor revisions for the CHI Conference on Human Factors in Computing Systems (CHI’26).
Abstract: As AI agents act on behalf of users, designers increasingly combine explainability (XAI) and anthropomorphism to build trust. Yet, whether these cues create synergy or interference remains a critical, open question. Our online experiment (N=900) revealed a counterintuitive interference effect: anthropomorphism reduced trust in an explainable agent. A preregistered lab study with eye-tracking (N=57) reversed this finding: under controlled conditions, the combined design elicited the highest trust. Eye-tracking reveals the mechanism: XAI promotes deeper cognitive engagement (e.g., longer fixations), which primes users to allocate attention to social cues (e.g., avatars). Our findings show that trust depends on cognitive engagement moderating social cue processing, yielding a critical design insight: effectively pairing explanatory and anthropomorphic interfaces requires first securing the user's cognitive engagement to avoid undermining trust.
From Memory to Meaning: A Systematic Review of Reminiscence Technologies (with Zhongyue Zhang, Mingqing XU, Mengyang Wang, Lina Xu, and Mingming Fan). Conditionally accepted with minor revisions for the CHI Conference on Human Factors in Computing Systems (CHI’26).
Abstract: Technologies designed to support reminiscence, defined as the practice of engaging with one’s personal past, have become a significant area of inquiry within HCI. Although this has generated a diverse range of creative systems, the field still lacks a systematic account of the design principles that guide them. In this paper, we review 60 studies to examine both the psychosocial functions these technologies target and the mechanisms through which they operate. Our analysis suggests a predominant emphasis on positive identity construction and social connection, with comparatively less focus on functions related to everyday problem solving. To synthesize the mechanisms identified, we propose a cue-centered framework that treats mnemonic cues (e.g., photographs) as the basic unit of design. The framework organizes design mechanisms into a four-stage lifecycle: cue generation, augmentation, interaction, and sharing. It provides a conceptual vocabulary for analyzing reminiscence technologies and highlights underexplored opportunities for future research and design.
Cognitive Load as a Hidden Cost of Empathy: Trade-offs in Using VR for Inclusive Design (with Dawei Xiong, Zhijun Ma, Hao Ling, Xun Wu, and Mingming Fan). Under review at the International Journal of Human–Computer Interaction.
Abstract: Virtual Reality (VR) is used to bridge the "empathy gap" in inclusive design, yet it remains unclear whether emotionally evocative simulations improve design outcomes. To investigate this, we conducted an experiment (N = 90) comparing passive video with nonemotional and emotional VR simulations. Grounded in interviews with low-vision individuals, our interactive simulation required participants to navigate daily challenges from an embodied, first-person, low-vision perspective. We measured empathy changes with a validated scale and evaluated the quality of design ideas by their alignment with user-expressed needs, specifically auditory solutions. Our findings reveal a paradox: while VR boosted empathy, emotional stimuli may hinder design ideation, with the non-emotional group producing 145% more user-appropriate solutions. We propose a cognitive load framework specifying that affective stimuli in empathy VR may impose extraneous cognitive load, which could explain the observable trade-off between emotional immersion and analytical design capacity. This mechanistic account bridges VR empathy and cognitive load literature, offering actionable guidelines for balancing empathy with the cognitive demands of inclusive design.
Mind vs. Machine: How Cognitive Reflection and Linguistic Cues Shape Detection of AI-Generated Reviews (with Ke Wang).
Abstract: AI-generated text is increasingly embedded in everyday communication, which often appears indistinguishable from human writing. This raises urgent questions about how people discern whether text is authored by humans or large language models (LLMs). We study this challenge in the context of online product reviews, a domain where credibility directly shapes trust and decision-making. In an online experiment (N = 168), participants were recruited to distinguish 240 reviews generated by diverse LLM prompts alongside authentic human reviews. We found that although people performed above chance, they were consistently overconfident. Reviews produced through paraphrasing were especially deceptive, exploiting linguistic cues such as analytic tone, readability, social references, etc. Importantly, participants with high cognitive reflection scores were less susceptible to AI reviews across all prompt conditions. They leveraged diagnostic cues (e.g., achievement-oriented words) more effectively than intuitive participants but still exhibited blind spots. These findings reveal fundamental limits in human discernment of AI text and suggest design strategies that strengthen resilience against AI-driven misinformation.
Exploring AI Support for Life Story Interviews in Memoir Creation (with Zhongyue Zhang, Chao LIU, Luyao Shen, Wen Ku, Yuru Huang, Mengyang Wang, and Mingming Fan). Under review at the Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies.
VRization: A Framework for Designing and Implementing Virtual Reality Experiments in Experimental Economics (with Hao Ling, Zhongyue Zhang, and Mingming Fan).
Multiplayer Virtual Reality Games in Economics Education: Testing the Dual-Pathway Mechanism (Hao Ling, Chunming Ma, Xu Zhang, Lei Chen, Yi-Lung Kuo), accepted by the 2026 CAERDA International Conference.
Group Cooperation and Competition in a Highly Immersive Virtual Reality Farming Game (with Hao Ling, Chunming Ma, and Lei Chen).
The Gendered Pitch: Causal Evidence of Bias in Investor Judgments from an AI Face-and-Voice Manipulation Experiment (with Yun Hou, Hao Ling, and Xiangyu Xu).
Time Perception and Intertemporal Choice in VR (with Aoqing Lyu, Hao Ling, and Xiangyu Xu).
The Effect of Tangible Rewards and Automated Smart Contracts on Present Bias (with Chongye Huang and Chenyang Li).