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ABSTRACT: 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.
SUBMITTER: Fong KN
PROVIDER: S-EPMC2881048 | biostudies-literature | 2010 Apr
REPOSITORIES: biostudies-literature
Fong Kenneth N K KN Chow Kathy Y Y KY Chan Bianca C H BC Lam Kino C K KC Lee Jeff C K JC Li Teresa H Y TH Yan Elaine W H EW Wong Asta T Y AT
Journal of neuroengineering and rehabilitation 20100430
<h4>Objective</h4>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.<h4>Design</h4>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.<h4>Setting</h4>A rehabilitation hospital and university-based ...[more]