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Visuospatial Processes See a video of our visuospatial computer application. We have completed a series of research trials using a three-dimentional (3D) projection display BR system (IDesk) to deliver cognitive component-based scenarios that target hands-on assessment and training of visuospatial skills including spatial rotation, depth perception, 3D field dependency, static and dynamic manual target tracking in 3D space, and visual field-specific reaction time. This research has produced results demonstrating training improvements in both young and elderly subjects, and one study on training produced enhanced performance levels in females relative to males as measured on a standard paper and pencil visuospatial test of mental rotation (Larson et al., 1999). A PC version of these applications has now been created that can deliver such 3D stereoscopic stimuli on a standard computer monitor. The PC version has now been used as an interaction benchmarking scenario for evaluating 3D User Interfaces and for making performance comparisons across different types of stereoscopic displays (shutterglass methods vs. autostereoscopic systems). A version of this is also being used to study hands-on spatial manipulation performance as a moderator variable to predict transfer of training from surgical simulation systems at the Karolinska Institutet in Stockholm. We have also developed an application for testing persons with visual neglect post TBI and Stroke in a wayfinding application with a wheelchair interface. The user can use their own wheelchair on a set of rollers that transduce the analog signal into a digital signal needed to actuate movement in the virtual world. See a video of our visuospatial computer application |