ML

Minha Lee

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5 records found

Conference paper (2025) - Simone Ooms, Minha Lee, Ekaterina R. Stepanova, Pablo Cesar, Abdallah El Ali
Encounters with virtual agents currently lack the haptic viscerality of human contact. While digital biosignal communication can mediate such virtual social interactions, how artificial haptic biosignals influence users’ personal space during Virtual Reality (VR) experiences is unknown. Designing vibrotactile heartbeats and thermally-actuated body temperature, we ran a within-subjects study (N=31) to investigate feedback (Thermal, Vibration, Thermal+Vibration, None) and agent stories (Negative, Neutral, Positive) on objective and subjective interpersonal distance (IPD), perceived arousal and comfort, presence, and post-experience responses. Findings showed that thermal feedback decreased objective but not subjective IPD, whereas vibrotactile heartbeats (signaling agent’s closeness) increased both while heightening arousal and discomfort. Agents’ stories did not affect IPD, arousal, or comfort. Our qualitative findings shed light on signal ambiguity and presence constructs within VR-based haptic stimulation. We contribute insights into artificial biosignals and their influence on VR proxemics, with cautionary considerations should the boundaries blur between physical and virtual touch. ...

Augmenting Affective Perceptions of News Videos with Thermal and Vibrotactile Stimulation

Conference paper (2023) - Simone Ooms, Minha Lee, Pablo Cesar, Abdallah El Ali
Emotion plays a key role in the emerging wave of immersive, multi-sensory audience news engagement experiences. Since emotions can be triggered by somatosensory feedback, in this work we explore how augmenting news video watching with haptics can influence affective perceptions of news. Using a mixed-methods approach, we design and evaluate FeelTheNews, a prototype that combines vibrotactile and thermal stimulation (Matching, 70Hz/20° C, 200Hz/40° C) during news video watching. In a within-subjects study (N=20), we investigate the effects of haptic stimulation and video valence on perceived valence, emotion intensity, comfort, and overall haptic experiences. Findings showed: (a) news valence and emotion intensity ratings were not affected by haptics, (b) no stimulation was more comfortable than including stimulation, (c) attention and engagement with the news can override haptic sensations, and (d) users' perceived agency over their reactions is critical to avoid distrust. We contribute cautionary insights for haptic augmentation of the news watching experience. ...

Exploring artificial identity and multi-embodiment

Conference paper (2021) - Minha Lee, Dimosthenis Kontogiorgos, Ilaria Torre, Michal Luria, Ravi Tejwani, Matthew J. Dennis, Andre Pereira
Interactive robots are becoming more commonplace and complex, but their identity has not yet been a key point of investigation. Identity is an overarching concept that combines traits like personality or a backstory (among other aspects) that people readily attribute to a robot to individuate it as a unique entity. Given people's tendency to anthropomorphize social robots, "who is a robot?"should be a guiding question above and beyond "what is a robot?"Hence, we open up a discussion on artificial identity through this workshop in a multi-disciplinary manner; we welcome perspectives on challenges and opportunities from fields of ethics, design, and engineering. For instance, dynamic embodiment, e.g., an agent that dynamically moves across one's smartwatch, smart speaker, and laptop, is a technical and theoretical problem, with ethical ramifications. Another consideration is whether multiple bodies may warrant multiple identities instead of an "all-in-one"identity. Who "lives"in which devices or bodies? Should their identity travel across different forms, and how can that be achieved in an ethically mindful manner? We bring together philosophical, ethical, technical, and designerly perspectives on exploring artificial identity. ...

Emancipating conversational interactions for futures worth wanting

Conference paper (2021) - Minha Lee, Renee Noortman, Cristina Zaga, Alain Starke, Gijs Huisman, Kristina Andersen
We present a vision for conversational user interfaces (CUIs) as probes for speculating with, rather than as objects to speculate about. Popular CUIs, e.g., Alexa, are changing the way we converse, narrate, and imagine the world(s) to come. Yet, current conversational interactions normatively may promote non-desirable ends, delivering a restricted range of request-response interactions with sexist and digital colonialist tendencies. Our critical design approach envisions alternatives by considering how future voices can reside in CUIs as enabling probes. We present novel explorations that illustrate the potential of CUIs as critical design material, by critiquing present norms and conversing with imaginary species. As micro-level interventions, we show that conversations with diverse futures through CUIs can persuade us to critically shape our discourse on macro-scale concerns of the present, e.g., sustainability. We refect on how conversational interactions with pluralistic, imagined futures can contribute to how being human stands to change. ...