Usability of a virtual reality environment simulating an automated teller machine for assessing and training persons with acquired brain injury
| Autor: | Bianca Ch H. Chan, Asta Ty Wong, Elaine Wh H. Yan, Kino Ck K. Lam, Kenneth Nk K. Fong, Kathy Yy Y. Chow, Teresa Hy Y. Li, Jeff Ck K. Lee |
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| Rok vydání: | 2010 |
| Předmět: |
Adult
Male Engineering Health Informatics Virtual reality computer.software_genre Sensitivity and Specificity lcsh:RC321-571 User-Computer Interface Human–computer interaction Activities of Daily Living Reaction Time medicine Humans lcsh:Neurosciences. Biological psychiatry. Neuropsychiatry Acquired brain injury Multimedia business.industry Research Rehabilitation Usability Middle Aged medicine.disease Brain Injuries Therapy Computer-Assisted Female business computer |
| Zdroj: | Journal of NeuroEngineering and Rehabilitation Journal of NeuroEngineering and Rehabilitation, Vol 7, Iss 1, p 19 (2010) |
| ISSN: | 1743-0003 |
| DOI: | 10.1186/1743-0003-7-19 |
| Popis: | Objective This study aimed to examine the usability of a newly designed virtual reality (VR) environment simulating the operation of an automated teller machine (ATM) for assessment and training. Design Part I involved evaluation of the sensitivity and specificity of a non-immersive VR program simulating an ATM (VR-ATM). Part II consisted of a clinical trial providing baseline and post-intervention outcome assessments. Setting A rehabilitation hospital and university-based teaching facilities were used as the setting. Participants A total of 24 persons in the community with acquired brain injury (ABI) - 14 in Part I and 10 in Part II - made up the participants in the study. Interventions In Part I, participants were randomized to receive instruction in either an "early" or a "late" VR-ATM program and were assessed using both the VR program and a real ATM. In Part II, participants were assigned in matched pairs to either VR training or computer-assisted instruction (CAI) teaching programs for six 1-hour sessions over a three-week period. Outcome Measures Two behavioral checklists based on activity analysis of cash withdrawals and money transfers using a real ATM were used to measure average reaction time, percentage of incorrect responses, level of cues required, and time spent as generated by the VR system; also used was the Neurobehavioral Cognitive Status Examination. Results The sensitivity of the VR-ATM was 100% for cash withdrawals and 83.3% for money transfers, and the specificity was 83% and 75%, respectively. For cash withdrawals, the average reaction time of the VR group was significantly shorter than that of the CAI group (p = 0.021). We found no significant differences in average reaction time or accuracy between groups for money transfers, although we did note positive improvement for the VR-ATM group. Conclusion We found the VR-ATM to be usable as a valid assessment and training tool for relearning the use of ATMs prior to real-life practice in persons with ABI. |
| Databáze: | OpenAIRE |
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