Citation

Bunce D, Young MS, Blane A, Khugputh P. Accid. Anal. Prev. 2012; 49: 293-299.

Affiliation

Centre for Cognition and Neuroimaging, Department of Psychology, Brunel University, London UB8 3PH, United Kingdom. david.bunce@brunel.ac.uk

Copyright

(Copyright © 2012, Elsevier Publishing)

DOI

10.1016/j.aap.2012.01.001

PMID

23036409

Abstract

Research in cognitive neuropsychology suggests that investigation of the within-person variability, or inconsistency, of cognitive performance may provide valuable insights into ageing mental processes. It is rare though, for this interest in intra-individual variability to extend to everyday activities. As this may provide important information about driving behaviour, we therefore assessed age differences in driving inconsistency in younger (n=24, M age=21.29 years) and older (n=21, M age=71.24 years) persons who drove in residential, urban and motorway conditions in a fully immersive driving simulator. In measures of headway (maintaining a safe distance to a preceding vehicle, close following, tailgating) and lateral lane position, older drivers exhibited significantly greater performance inconsistency, and this was particularly marked in the faster motorway condition. Older drivers also recorded greater perceived mental demands associated with driving, and greater within-person variability across a range of cognitive measures. The findings suggest that age-related deficits in attentional and executive control may affect the consistency of driving performance in older persons. Discussion considers interventions to introduce in-vehicle systems to help maintain attention in older drivers, and to intervene when safety-critical boundaries are exceeded.

Language: en