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Strong predictors of crashes included visuospatial impairment, reduction in the useful field of view, and reduced perception of 3-dimensional structure-from-motion. Plots of critical control factors in the moments preceding a crash revealed patterns of driver in-attention and error.
#CITY CAR DRIVING SIMULATOR CRASH DRIVERS#
Drivers with AD were more than twice as likely to experience close calls (P =. Six participants (29%) with AD experienced crashes vs 0 of 18 control participants (P =. We determined the number of crashes and related performance errors and analyzed how these occurrences were predicted by visual and cognitive factors. Thirty-nine licensed drivers: 21 with AD and 18 controls without dementia. The University of Iowa Hospitals and Clinics, Iowa City, and the Iowa Driving Simulator. We determined how such unsafe events are predicted by visual and cognitive factors sensitive to decline in aging and AD. We examined the effect of AD on driver collision avoidance using the Iowa Driving Simulator, which provided a high-fidelity, closely controlled environment in which to observe serious errors by at-risk drivers. To measure relevant performance factors using high-fidelity driving simulation. Rational decisions about whether such impaired individuals should continue to drive require objective assessments of driver performance. Alzheimer disease (AD) is the most common cause of dementia and can impair cognitive abilities crucial to the task of driving.