Effects of Presence and Challenge Variations on Emotional Engagement in Immersive Virtual Environments

Caldas, Oscar I.; Rodriguez–Guerrero, Carlos

doi:10.1109/tnsre.2020.2985308

Cited by 30 publications

(14 citation statements)

References 38 publications

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“…Participants explained that engaging in a real-life task made them feel more immersed in the experience, despite the environment being relatively bare in this condition. Previous research has reported that the higher the involvement in a VR experience, the more the simulated experience can elicit genuine negative and positive emotions such as fear and anxiety, and in turn the higher the emotional engagement in the simulated experience [116]. One element that was reported to favour a stronger sense of presence was the presence of road and car noise.…”

Section: Presence and Sicknessmentioning

confidence: 98%

Ranking Crossing Scenario Complexity for eHMIs Testing: A Virtual Reality Study

Fratini

Welsh

Thomas

2023

MTI

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External human–machine interfaces (eHMIs) have the potential to benefit AV–pedestrian interactions. The majority of studies investigating eHMIs have used relatively simple traffic environments, i.e., a single pedestrian crossing in front of a single eHMI on a one-lane straight road. While this approach has proved to be efficient in providing an initial understanding of how pedestrians respond to eHMIs, it over-simplifies interactions which will be substantially more complex in real-life circumstances. A process is illustrated in a small-scale study (N = 10) to rank different crossing scenarios by level of complexity. Traffic scenarios were first developed for varying traffic density, visual complexity of the road scene, road geometry, weather and visibility conditions, and presence of distractions. These factors have been previously shown to increase difficulty and riskiness of the crossing task. The scenarios were then tested in a motion-based, virtual reality environment. Pedestrians’ perceived workload and objective crossing behaviour were measured as indirect indicators of the level of complexity of the crossing scenario. Sense of presence and simulator sickness were also recorded as a measure of the ecological validity of the virtual environment. The results indicated that some crossing scenarios were more taxing for pedestrians than others, such as those with road geometries where traffic approached from multiple directions. Further, the presence scores showed that the virtual environments experienced were found to be realistic. This paper concludes by proposing a “complex” environment to test eHMIs under more challenging crossing circumstances.

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Section: Presence and Sicknessmentioning

confidence: 98%

Ranking Crossing Scenario Complexity for eHMIs Testing: A Virtual Reality Study

Fratini

Welsh

Thomas

2023

MTI

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“…In applications of VR technology to rehabilitation, there are more studies on upper limbs than lower limbs because it is easier to design virtual scenes for flexible upper limbs. The common method is creating task-specific training scenes by VR technology, and patients can improve their physical abilities by completing tasks [25,29]. The method shown in [30] is similar to our research, but it focuses more on the balance ability training.…”

Section: Discussionmentioning

confidence: 60%

“…Research shows that VR can be a beneficial environment for rehabilitation [27], and relevant health games are promising tools for rehabilitation [28]. Further, VR technology has been proven to improve motivation and engagement [29]. Chul Gyu Song et al developed a training system combining VR technology and an unfixed bicycle to improve postural balance ability [30].…”

Section: Introductionmentioning

confidence: 99%

Adaptive Admittance Control Scheme with Virtual Reality Interaction for Robot-Assisted Lower Limb Strength Training

et al. 2021

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Muscle weakness is the primary impairment causing mobility difficulty among stroke survivors. Millions of people are unable to live normally because of mobility difficulty every year. Strength training is an effective method to improve lower extremity ability but is limited by the shortage of medical staff. Thus, this paper proposes a robot-assisted active training (RAAT) by an adaptive admittance control scheme with virtual reality interaction (AACVRI). AACVRI consists of a stiffness variable admittance controller, an adaptive controller, and virtual reality (VR) interactions. In order to provide human-robot reality interactions corresponding to virtual scenes, an admittance control law with variable stiffness term was developed to define the mechanics property of the end effector. The adaptive controller improves tracking performances by compensating interaction forces and dynamics model deviations. A virtual training environment including action following, event feedback, and competition mechanism is utilized for improving boring training experience and engaging users to maintain active state in cycling training. To verify controller performances and the feasibility of RAAT, experiments were conducted with eight subjects. Admittance control provides desired variable interactions along the trajectory. The robot responds to different virtual events by changing admittance parameters according to trigger feedbacks. Adaptive control ensures tracking errors at a low level. Subjects were maintained in active state during this strength training. Their physiological signals significantly increased, and interaction forces were at a high level. RAAT is a feasible approach for lower limb strength training, and users can independently complete high-quality active strength training under RAAT.

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“…17 Fourteen articles are quantitative research, 13,[21][22][23][24][25][26][27][28][29][30][31][32][33] and 1 mixed study 34 was conducted between the years of 2007 and 2020. Ten of the 14 quantitative studies are experimental, 13,[21][22][23]26,[29][30][31][32][33] and 2 are observational. 24,25 Studies included are from different disciplines such as health care, engineering, education, and business.…”

Section: Literature Retrieval and Data Collectionmentioning

confidence: 99%

“Sense of Presence” in Immersive Virtual Reality Environment

Cypress

Caboral‐Stevens

2022

Dimens Crit Care Nurs

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There is no concept analysis in the literature about "sense of presence" in immersive virtual reality environment in the context of nursing clinical education. The purpose of this article is to explore the meaning and derive an operational definition of the concept of sense of presence within the context of immersive virtual reality environment in nursing clinical education. Using Rodgers' approach, this evolutionary concept analysis will clarify the concept's surrogate and related terms, attributes, antecedents, and consequences. A clearer conceptualization is paramount to help provide knowledge for nurses and other health care professionals, thus guiding their practice, theory, and research.

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Effects of Presence and Challenge Variations on Emotional Engagement in Immersive Virtual Environments

Cited by 30 publications

References 38 publications

Ranking Crossing Scenario Complexity for eHMIs Testing: A Virtual Reality Study

Ranking Crossing Scenario Complexity for eHMIs Testing: A Virtual Reality Study

Adaptive Admittance Control Scheme with Virtual Reality Interaction for Robot-Assisted Lower Limb Strength Training

“Sense of Presence” in Immersive Virtual Reality Environment

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