Ecological Virtual Reality Evaluation of Neglect Symptoms (EVENS): Effects of Virtual Scene Complexity in the Assessment of Poststroke Unilateral Spatial Neglect

Ogourtsova, Tatiana; Archambault, P.; Sangani, Samir; Lamontagne, Anouk

doi:10.1177/1545968317751677

Cited by 34 publications

(69 citation statements)

References 70 publications

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“…The effects of message modality and direction of obstacle approach (within-subject factors), as well as the effect of age group (between-subject factor) on the different outcomes listed above were examined using repeated measure mixed models. The mixed model approach accounts for possible large between-subject heterogeneity and is also tolerant to small and unequal sample sizes [26]. Combined covariance structures and a random coefficient structure were used.…”

Section: Methodsmentioning

confidence: 99%

Phone messages affect the detection of approaching pedestrians in healthy young and older adults immersed in a virtual community environment

et al. 2019

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Background Mobile phones are increasingly associated with accidents while walking. Little is known, however, about the impact of phone messaging on the actual perception of other pedestrians. This study aimed to investigate the extent to which the detection of approaching pedestrians is affected by the sensory modality (text or audio) of phone messages in young vs. older adults. Methods Eighteen healthy young (24 ± 2.9 years) and 15 older adults (68 ± 4.2 years) performed a phone message deciphering task, an obstacle detection task, and a dual-task condition combining both tasks. Participants were tested while seated and viewing a virtual subway station (VE) in a helmet mounted display. As they were passively moved within the VE one of three virtual pedestrians randomly approached them from the center (0°), right (+40°) or left (+40°). When present, phone message conditions were delivered at obstacle movement onset and presented either as (1) text messages on the screen of a virtual phone or (2) audio messages delivered through earphones. Participants were instructed to press a joystick button as soon as they detected the approaching virtual pedestrian and to report the message content at the end of the trials. Results Young and older participants showed delayed obstacle detection times with vs. without text messages. Older adults further showed reduced accuracy of message report for texts compared to audio messages. In both groups, audio messages yielded no difference in obstacle detection time or accuracy of message report compared to the no message condition. Conclusions Findings indicate that text messages prolong the detection of approaching pedestrians, suggesting that they compromise safe ambulation in community environments. Older adults, who show larger deteriorations on the obstacle detection and message deciphering tasks, may be at even greater risk of collision. Audio messages could be a safer alternative for on-the-go communication.

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Section: Methodsmentioning

confidence: 99%

Phone messages affect the detection of approaching pedestrians in healthy young and older adults immersed in a virtual community environment

et al. 2019

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“…The development of VR rehabilitation for spatial neglect is still in its infancy. To date, studies in spatial neglect have explored both immersive and non-immersive VR including real-world tasks such as navigation and cooking (Ogourtsova et al, 2018;Tobler-Ammann et al, 2017) and visual search tasks (Yasuda et al, 2017;Cipresso et al, 2014). Even though several VR therapies have been introduced for neurorehabilitation, not much is known about the views of stroke survivors, their carers or clinicians regarding their usability and acceptability (e.g., Threapelton, Drummond & Standen, 2016).…”

Section: Introductionmentioning

confidence: 99%

“…The development of VR rehabilitation for spatial neglect is still in its infancy. To date, studies in spatial neglect have explored both immersive and non-immersive VR including real-world tasks such as navigation and cooking (Ogourtsova et al, 2018; Tobler-Ammann et al, 2017) and visual search tasks (Yasuda et al, 2017; Cipresso et al, 2014). Fasotti and van Kessell (2013) reviewed several ‘proof-of-concept’ studies reporting positive effects of VR rehabilitation techniques for spatial neglect, such as simulated wheelchair navigation tasks (Webster et al, 2001), virtual street crossing (Katz et al, 2005), and searching and grasping tasks (Sedda et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Exploring perspectives from stroke survivors, carers and clinicians on virtual reality as a precursor to using telerehabilitation for spatial neglect post-stroke

Morse

Biggart

Pomeroy

et al. 2020

Preprint

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Spatial neglect is a common and severe cognitive consequence of stroke, yet there is currently no effective rehabilitation tool. Virtual Reality (VR) telerehabilitation tools have the potential to provide multisensory and enjoyable neuropsychological therapies and remotely monitor adherence without the presence of a therapist at all times. Researchers and industry need to better understand end-user perspectives about these technologies to ensure these are acceptable and user-friendly and, ultimately, optimize adherence and efficacy. Therefore, this study aims to explore end-user perspectives on the use of self-administered VR telerehabilitation for spatial neglect to identify barriers and facilitators of use. We used a mixed-method design including focus groups, self-administered questionnaires and individual interviews with stroke survivors (N = 7), their carers (N = 3) and stroke clinicians (N = 6). End-user perspectives identified clarity of instructions, equipment (cost, available resources) and for some, level of experience with technology as barriers of use. Perceived facilitators of use were performance feedback, engagement and enjoyment, and psychological benefits associated by self-administered VR telerehabilitation. Overall, end-users were positive and interested in using VR telerehabilitation for spatial neglect. These perspectives enabled us to produce practical recommendations to inform development, enhance engagement and uptake of self-administered VR telerehabilitation and inform feasibility and usability studies.

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“…While VR appears to be efficient and largely used in training programs [8] and rehabilitation [9], it is also been shown as being safe, easy to use, and contributing to high patient satisfaction [10]. In addition, VR allows therapists to achieve abilities assessment while reducing time, cost or safety constraints [11]. Besides, a recent study highlighted that VR can increase user excitement and motivation while performing a task in the virtual environment [9].…”

Section: Introductionmentioning

confidence: 99%

User-centered design of a multisensory power wheelchair simulator: towards training and rehabilitation applications

Vailland¹,

Grzeskowiak²,

Devigne³

et al. 2019

2019 IEEE 16th International Conference on Rehabilitation Robotics (ICORR)

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Autonomy and social inclusion can reveal themselves everyday challenges for people experiencing mobility impairments. These people can benefit from technical aids such as power wheelchairs to access mobility and overcome social exclusion. However, power wheelchair driving is a challenging task which requires good visual, cognitive and visuo-spatial abilities. Besides, a power wheelchair can cause material damage or represent a danger of injury for others or oneself if not operated safely. Therefore, training and repeated practice are mandatory to acquire safe driving skills to obtain power wheelchair prescription from therapists. However, conventional training programs may reveal themselves insufficient for some people with severe impairments. In this context, Virtual Reality offers the opportunity to design innovative learning and training programs while providing realistic wheelchair driving experience within a virtual environment. In line with this, we propose a user-centered design of a multisensory power wheelchair simulator. This simulator addresses classical virtual experience drawbacks such as cybersickness and sense of presence by combining 3D visual rendering, haptic feedback and motion cues. It relies on a modular and versatile workflow enabling not only easy interfacing with any virtual display, but also with any user interface such as wheelchair controllers or feedback devices. This paper presents the design of the first implementation as well as its first commissioning through pretests. The first setup achieves consistent and realistic behavior.

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Ecological Virtual Reality Evaluation of Neglect Symptoms (EVENS): Effects of Virtual Scene Complexity in the Assessment of Poststroke Unilateral Spatial Neglect

Cited by 34 publications

References 70 publications

Phone messages affect the detection of approaching pedestrians in healthy young and older adults immersed in a virtual community environment

Phone messages affect the detection of approaching pedestrians in healthy young and older adults immersed in a virtual community environment

Exploring perspectives from stroke survivors, carers and clinicians on virtual reality as a precursor to using telerehabilitation for spatial neglect post-stroke

User-centered design of a multisensory power wheelchair simulator: towards training and rehabilitation applications

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