xr developers

Abstract: Multisensory XR may support informal learning for autistic adults, but sensory-friendly design often emphasizes reducing input. We conducted a mixed-methods, counterbalanced within-subjects study with 20 Chinese autistic adults who evaluated five complete XR configurations presenting the same popular-science content. Comfort differed substantially across the configurations (Friedman chi-square(4) = 46.39, p < .001, Kendall's W = .58). L3 received the lowest mean rating (2.97/5) and was tied for lowest for 16/20 participants, whereas L5 received the highest mean rating (4.43/5) and was tied for highest for 17/20. Participants described the static configurations in terms of clarity and self-pacing, L3 in terms of abruptness, simultaneous demands, insufficient warning, and limited disengagement, and L4/L5 in terms of gradual transitions, opportunities to disengage, and coordinated narrative cues. The study provides a configuration-level account of sensory comfort and identifies participant-described qualities that can inform future controlled studies of multisensory XR.

Abstract: Prior avatar embodiment research has studied tracking completeness (how faithfully the body, hands, and face are sensed and reproduced) and personalized appearance in isolation, each requiring specialized lab equipment. How these factors interact on consumer hardware remains an open question, because no existing system unifies body pose, face, hands, and personalized appearance on a standalone headset. We present FlowAvatar, a system enabling real-time personalized look-alike avatars with full-body pose, hand articulation, facial expression, and eye gaze tracking from sparse egocentric inputs on consumer XR devices (Meta Quest Pro). Our pose model achieves competitive spatial accuracy and state-of-the-art temporal consistency on the AMASS benchmark against prior works with comprehensive spatial and temporal losses validated through architecture and loss ablations, while running in real-time. Two user studies (N=12, N=10) provide converging evidence that tracking completeness and personalized appearance serve complementary roles: tracking completeness broadly improves perceived motion quality, while only their combination achieves positive total embodiment.

Abstract: In magicians' forcing, spectators may experience a choice as self-determined even when that choice has been externally directed. Research on the sense of agency has developed largely around action-outcome relations, most notably intentional binding; however, the problem of choice authorship (why a particular choice is experienced as originating from oneself) must be treated as distinct. This paper integrates research on agency and forcing by distinguishing the locus of intervention within the choice-action-outcome chain, self-attribution at the Decision, Action, and Outcome levels, and the processes by which feeling of agency and judgment of agency are constructed. On this basis, a distinction is drawn between intentional binding, which concerns the temporal/causal relation between action and outcome, and the different binding problem exposed by forcing: the relation between a choice and its author. This theoretical relation is termed authorship binding. Authorship binding does not denote a new implicit measure; rather, it refers to the constructive relation through which a choice whose formation has been directed by external factors can nevertheless be experienced as originating from the self. Forcing can sustain this relation not by eliminating agency, but by selectively preserving, substituting, and redistributing agency cues. XR, in which body-centred spatial relations can be manipulated, is further conceptualised as a medium for extending the forced-yet-free structure into space.