Use of a computer simulator for training children with disabilities in the operation of a powered wheelchair.

OBJECTIVE: The purpose of this study was to evaluate the ability of a basic driving simulator program to evaluate and train children with disabilities in their ability to operate a powered wheelchair. METHOD: With a rating scale of skills considered essential for safe and efficient wheelchair operation, 22 children 7 to 22 years of age with either progressive muscular dystrophy or cerebral palsy were evaluated in their ability to drive a powered wheelchair through a driving course. They were divided into two groups: one without prior experience driving a powered wheelchair and the other with experience. After the driving assessment with an actual powered wheelchair, the inexperienced drivers were trained on a joystick-controlled computer game in which they navigated through labyrinths similar in layout to their own school environment. A test maze was administered before and after this training. Both groups were then evaluated on their ability to drive a powered wheelchair through the driving course. RESULTS: The inexperienced drivers significantly increased their simulator scores over the training period. Their wheelchair driving performance was significantly better after the simulator training, although their performance remained poorer than that of the experienced drivers. CONCLUSION: A simulator program can assist in the development and evaluation of the skills required to operate a powered wheelchair.

Virtual reality applications to work.

Virtual reality (VR) entails the use of advanced technologies, including computers and various multimedia peripherals, to produce a simulated (i.e. virtual) environment that users perceive as comparable to real world objects and events. With the aid of specially designed transducers and sensors, users interact with displayed images, moving and manipulating virtual objects, and performing other actions in a way that engenders a feeling of actual presence (immersion) in the simulated environment. The unique features and flexibility of VR give it extraordinary potential for use in work-related applications. It permits users to experience and interact with a life-like model or environment, in safety and at convenient times, while providing a degree of control over the simulation that is usually not possible in the real-life situation. The work-related applications that appear to be most promising are those that employ virtual reality for visualization and representation, distance communication and education, hands-on training, and orientation and navigation. This article presents an overview to the concepts of VR focusing on its applications in a variety of work settings. Issues related to potential difficulties in using VR including side effects and the transfer of skills learned in the virtual environment to the real world are also reviewed.