Emotional harm and discomfort in therapeutic extended realities (XR) remains underexamined, even as immersive tools are increasingly deployed in healthcare contexts. We frame therapeutic XR as EmotionTech and reflect on 12 cases from 9 researchers and designers through interviews and workshops. We locate four concerns for emotional harm and identify ways to address them: how to talk about emotion, when to talk about emotion, whose emotions are centred, and which emotions are valued. Building on these themes and therapeutic XR as one form of EmotionTech, we propose strategies to legitimise concerns for emotional safety in design and research practice, legitimise knowers by recognising diverse perspectives and situated experiences, and leveraging ambiguity in design and training tools that foster reflexivity rather than closure. These strategies together reposition design responsibility in EmotionTech innovation and make visible its potential to cause emotional discomforts and harms.
ACM CHI Conference on Human Factors in Computing Systems