The study matters because augmented reality is expanding rapidly across industry, retail, manufacturing, and education, yet systematic reviews have repeatedly noted that user experience design is often overshadowed by hardware capabilities and visualization techniques. Interaction design sits at the center of this problem. In AR, digital content is merged with the physical environment in real time and in spatially accurate ways, so the interface must bridge two worlds. The dominant assumption in the field has been that natural interaction techniques—gestures, gaze, voice, and direct manipulation of virtual objects—suit AR better than the symbolically mediated menus inherited from two-dimensional desktop computing. But direct, controlled comparisons between the two paradigms have been surprisingly rare, with most evidence coming from evaluations of single, isolated systems.

To close that gap, the researchers designed a within-subjects experiment in which every participant experienced both interaction conditions. Thirty adults, recruited from university and community populations and ranging widely in age and prior AR experience, completed a Tactical Combat Casualty Care training simulation delivered on a Meta Quest 3 head-mounted display. The scenario, built on Design Interactive’s AUGMED platform, focused on identifying and treating massive hemorrhage in a battlefield setting—a task chosen precisely because it demands correct execution of a sequence of physical actions under time pressure, the kind of high-stakes procedural training where interaction quality matters most. The tasks were identical across conditions in objectives, sequence, and content, so any differences in outcomes could be attributed to the interaction modality itself.

The two conditions embodied opposite design philosophies. In the natural interaction condition, participants used gesture-based manipulation, gaze-based selection, and voice commands—inputs chosen because each preserves a direct, continuous correspondence between a physical action and its digital effect, such as reaching toward an object to select it. In the WIMP condition, the same tasks were presented through a graphical interface of floating windows, icons, and menus rendered spatially but retaining a two-dimensional, symbolic interaction structure that required indirect manipulation of virtual content. Condition order was counterbalanced across participants, and a priori power analysis confirmed that thirty participants were sufficient to detect moderate effects with paired-samples t-tests at conventional statistical thresholds.

The measurement strategy combined validated subjective instruments with objective behavioral metrics. Participants completed the System Usability Scale after each condition, the NASA Task Load Index to capture mental, physical, temporal, and other dimensions of workload, and the Presence Questionnaire to assess how strongly they felt present in the augmented environment. The Immersive Tendencies Questionnaire was administered beforehand as a baseline measure of each person’s general propensity for immersion. On the objective side, the experimenters recorded task completion time, misclicks and navigation errors, missed procedural steps, corrective actions, requests for clarification, and observed ratings of interaction smoothness and efficiency during task execution.

The results told a nuanced story. Natural interaction produced significantly higher usability scores, averaging 79.83 compared with 72.67 for the WIMP interface, a statistically significant difference with a moderate effect size. A nonparametric sensitivity analysis confirmed this finding was robust. Presence showed an even stronger advantage, with participants reporting a significantly greater sense of being there under natural interaction, an effect in the medium-to-large range. Crucially, the presence advantage held regardless of which condition participants tried first, and it was not explained by individual differences in immersive tendency, which showed no significant correlation with presence in either condition. The interaction technique itself, rather than a participant’s personality, appears to have driven the immersion benefit.

Objective performance measures reinforced the pattern. Participants committed significantly fewer navigation errors, missed fewer procedural steps, required fewer corrective actions, and demonstrated smoother observed interactions under the natural paradigm, with effect sizes ranging from small to medium. Yet several measures showed no significant difference at all: task completion time, requests for clarification, and overall observed efficiency were statistically equivalent between conditions. Cognitive workload, measured by the NASA-TLX, also showed no significant difference between paradigms, despite mean scores trending slightly lower for natural interaction. In short, natural interaction made people more accurate and made the experience feel better, but it did not make them quicker or lighter on mental demand during initial use.

One of the most instructive findings emerged from the exploratory order analysis. Perceived workload was significantly lower during participants’ second experimental session regardless of which interaction condition they were using, with a mean reduction of 5.70 points on the NASA-TLX. Similar order effects appeared for task completion time, clarification requests, and subjective efficiency ratings. The researchers interpret this as a learning or familiarization effect: participants devoted substantial mental effort to understanding the task, the AR environment, and the interaction paradigm during their first exposure, and that burden diminished with experience. Because no significant interaction between condition and order was observed, the effect reflects acclimation to the setup rather than an inherent advantage of either interface—a reminder that in immersive technology research, the novelty of the medium itself can dominate early workload measurements.

Taken together, the findings suggest that the principal value of natural interaction in AR lies in improving the overall quality of the user experience rather than maximizing efficiency. The authors argue this distinction is especially important in domains such as training, maintenance, healthcare, and decision support, where accuracy, user confidence, and sustained engagement matter alongside productivity. Natural interaction appears to encourage deliberate, embodied movements that prioritize accuracy and confidence over raw speed, and because both interfaces in the study were designed to support successful task completion, opportunities to observe large efficiency differences may have been limited. The researchers also acknowledge limitations: the results come from a single training application on one hardware platform, the sample was drawn from university and community populations rather than operational end users, and the study relied on domain-general instruments rather than emerging AR-specific evaluation frameworks that might better capture spatial and embodied dimensions of interaction.

Future work, the authors suggest, should replicate these findings across diverse AR applications and populations, investigate why natural interaction improves usability and presence without reducing perceived workload, and examine how the benefits evolve over long-term use, in collaborative settings, and in more complex operational scenarios. Disentangling the individual contributions of gesture, gaze, and voice would also help designers of next-generation AR interfaces decide where to invest. For now, the message for the field is clear: if the goal is interfaces that are intuitive, immersive, and forgiving of human error, designing interaction techniques that align with people’s natural behaviors offers measurable advantages—provided that speed alone is not the yardstick.

Subject of Research: A controlled comparison of natural versus WIMP-based interaction paradigms in augmented reality combat casualty care training

Article Title: Evaluating interaction methods in augmented reality training

Article References: Hughes, C. L., & Karwowski, W. (2026). Evaluating interaction methods in augmented reality training. Frontiers in Virtual Reality, 7, Article 1939058. https://doi.org/10.3389/frvir.2026.1939058

Image Credits: AI Generated

DOI: 10.3389/frvir.2026.1939058

Keywords: augmented reality, natural interaction, WIMP interface, user experience, presence, cognitive workload, usability, Tactical Combat Casualty Care, Meta Quest 3, training simulation, interaction design, human-computer interaction

Researchers at Marche Polytechnic University in Ancona, Italy, recruited 162 university students and immersed them in a virtual jewelry museum built in Unity, viewed through an HTC Vive Pro 2 head-mounted display. The setting was chosen deliberately. Italian museums frequently display small, fragile artefacts such as rings, pendants, brooches and coins behind sealed glass, objects visitors can see but never touch. A virtual jewelry museum is therefore an ecologically valid testbed for asking whether haptic feedback and embodied walking genuinely enrich exploration of artefacts that are otherwise off-limits.

Each participant explored the museum under four conditions in a within-subjects, counterbalanced design. In the baseline configuration, they navigated with a controller and manipulated objects with a controller. In the other three, the researchers swapped in SenseGlove Nova haptic gloves, which deliver up to 20 newtons of force feedback to four fingers by braking cables routed along the back of the hand, a KATWalk Mini-S omnidirectional treadmill that lets users walk in place on a low-friction surface held centered by a waist harness, or both devices simultaneously. Finger position was sampled at 60 hertz with sub-millimeter resolution, and every session began with a calibration and familiarization phase so results would reflect settled use rather than initial learning.

The team measured four pillars of user experience after each condition: presence, the sensation of genuinely being inside the virtual world, assessed with the Igroup Presence Questionnaire; usability, scored with the System Usability Scale; cognitive workload, captured repeatedly with the Instantaneous Self-Assessment scale; and cybersickness, tracked with the Fast Motion Sickness scale. Because every participant completed all four configurations, the data were analyzed with linear mixed-effects models that included a random intercept per participant and Bonferroni-corrected p-values across all twelve statistical tests.

The results dismantle the idea that advanced interfaces uniformly enhance the experience. Haptic gloves significantly reduced perceived usability, with a coefficient of minus 3.59 points on the usability scale compared with controllers, and significantly increased cognitive workload, with a coefficient of 0.23 and a medium effect size of Cohen’s d equal to 0.542, the most practically meaningful effect in the study. Treadmill locomotion, by contrast, significantly reduced cognitive workload, with a coefficient of minus 0.36, suggesting that once users adapt, body-based navigation relies on more automatic sensorimotor routines and frees mental resources compared with controller-mediated movement.

The most surprising finding concerned presence. Neither the gloves nor the treadmill shifted presence on its own, but their combination did, and in the wrong direction: participants wearing haptic gloves while walking on the treadmill reported significantly lower perceived presence than in any other configuration, with a significant interaction effect of beta minus 0.17. The researchers interpret this as a possible ‘coupling cost’: when both locomotion and manipulation are physically and attentively demanding at the same time, small inconsistencies in tracking, latency or action-feedback coupling become more salient, eroding the subjective sense of ‘being there’ even though neither device alone moves the needle.

Observations during testing supported the statistics. Participants needed only a brief adaptation to the treadmill before navigating with relative ease, consistent with the workload benefit. The gloves, however, occasionally misaligned tracked hand positions with actual movements, prompting users to consciously monitor and correct their gestures, while the physical bulk of the devices added discomfort and mental strain. Notably, cybersickness remained low across all conditions, with average Fast Motion Sickness scores between roughly 2 and 3 on a 0-to-20 scale, and neither device, alone or combined, significantly changed sickness levels, though the authors caution that a floor effect may have limited sensitivity here.

The practical implications for museum designers are concrete. Force-feedback gloves should not be treated as a default upgrade; they make sense mainly when tactile manipulation of small or fragile artefacts is the core of the experience, and only with adequate onboarding, calibration support and simplified interaction gestures. Treadmill locomotion can meaningfully ease the cognitive burden of navigation and suits installations where embodied exploration is central, but its space, cost, safety and accessibility demands make it more appropriate for supervised, high-end deployments than everyday museum floors. For novice visitors, controller-based interaction and navigation remain the most robust baseline, and locomotion and manipulation should be co-designed rather than bolted together independently.

The broader message reaches beyond cultural heritage. This study, published in Multimedia Tools and Applications, is among the first to systematically test the individual and combined effects of haptic gloves and treadmill locomotion within a single experimental protocol, showing that findings from studying devices in isolation do not automatically transfer to combined high-embodiment configurations. The relationship between immersion and experience quality appears non-linear: accurate hand tracking, fluid gesture execution and low interaction overhead may matter more to visitors than haptic realism itself. As museums and other industries weigh investments in ever-more-embodied VR, the evidence suggests the right question is not how much immersion can be added, but which trade-offs in usability, mental effort and comfort each addition actually buys.

Subject of Research: The individual and combined effects of haptic gloves and VR treadmill locomotion on presence, usability, cognitive workload and cybersickness in virtual museum experiences

Article Title: More immersion, better experience? The trade-offs of haptic gloves and treadmill locomotion in virtual museums

Article References: Agostinelli, T., Gambelli Fenili, E., & Mengoni, M. (2026). More immersion, better experience? The trade-offs of haptic gloves and treadmill locomotion in virtual museums. Multimedia Tools and Applications, 85(9), Article 754. https://doi.org/10.1007/s11042-026-21911-5

Image Credits: AI Generated

DOI: 10.1007/s11042-026-21911-5

Keywords: virtual reality, haptic gloves, VR treadmill, virtual museums, presence, usability, cognitive workload, cybersickness, cultural heritage, user experience, immersive technology, locomotion