Interaction between visual status, driver age and distracters on daytime driving performance

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Issue Date
2009-08
Authors
Wood, Joanne M.
Chaparro, Alex
Hickson, Louise
Advisor
Citation

Wood, J.M., Chaparro, A., & Hickson, L. (2009). Interaction between visual status, driver age and distracters on daytime driving performance. Vision Research, 49(17), 2225-2231. doi: 10.1016/j.visres.2009.06.017

Abstract

This study investigated the effects of visual status, driver age and the presence of secondary distracter tasks on driving performance. Twenty young (M = 26.8 years) and 19 old (M = 70.2 years) participants drove around a closed-road circuit under three visual (normal, simulated cataracts, blur) and three distracter conditions (none, visual, auditory). Simulated visual impairment, increased driver age and the presence of a distracter task detrimentally affected all measures of driving performance except gap judgments and lane keeping. Significant interaction effects were evident between visual status, age and distracters; simulated cataracts had the most negative impact on performance in the presence of visual distracters and a more negative impact for older drivers. The implications of these findings for driving behaviour and acquisition of driving-related information for people with common visual impairments are discussed.

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