The current research investigated the effects of aging on driving performance. Perceptual measures included far and near point acuity, stereopsis, a measure of lateral and vertical phoria, color vision; and spatial contrast sensitivity. Cognitive functioning was examined using the Useful-Field-of-View (UFOV) Test. In addition, each driver completed a Driving Habits Questionnaire (DHQ). Although older drivers tended to have fewer collisions and exhibited better adherence to speed limits in a simulated driving task than did younger drivers, older drivers appear to be at a greater risk of having a collision, resulting from degraded divided and selective attention compared to the younger drivers.
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