@article{ref1,
title="Attention function structure of older and younger adult drivers",
journal="Proceedings of the ... international driving symposium on human factors in driver assessment, training and vehicle design",
year="2009",
author="Tuttle, Stephanie and Cassavaugh, Nicholas D. and Backs, Richard W.",
volume="5",
number="",
pages="506-513",
abstract="Groups of younger (n=49, M age = 21.7 years) and older (n=52, M age = 73.0 years) adults performed computer-based cognitive tests and simulated driving. Results from the cognitive tests were submitted to Principal Components Analysis (PCA) and 6 components were extracted that explained more than 77% of the variance. The components were labeled speed, divided, sustained, executive, selective/inhibition, and visual search in descending order of amount of variance explained. The component scores were used to predict simulated driving performance. Hierarchical step-wise regressions were computed with driving performance as the criterion, and age group (forced) and the component scores (step-wise) as predictors. Results showed that the speed and divided components were more likely to explain additional driving performance variance beyond age group than the other components.<p />",
language="",
issn="",
doi="",
url="http://dx.doi.org/"
}