The role of cognitive and visual abilities as predictors in the Multifactorial Model of Driving Safety

Anstey, Kaarin J., Horswill, Mark S., Wood, Joanne M. and Hatherly, Christopher (2012) The role of cognitive and visual abilities as predictors in the Multifactorial Model of Driving Safety. Accident Analysis and Prevention, 45 766-774. doi:10.1016/j.aap.2011.10.006


Author Anstey, Kaarin J.
Horswill, Mark S.
Wood, Joanne M.
Hatherly, Christopher
Title The role of cognitive and visual abilities as predictors in the Multifactorial Model of Driving Safety
Journal name Accident Analysis and Prevention   Check publisher's open access policy
ISSN 0001-4575
1879-2057
Publication date 2012-03
Sub-type Article (original research)
DOI 10.1016/j.aap.2011.10.006
Volume 45
Start page 766
End page 774
Total pages 9
Place of publication Oxford, United Kingdom
Publisher Elsevier
Collection year 2013
Language eng
Formatted abstract
Objective
The current study evaluated part of the Multifactorial Model of Driving Safety to elucidate the relative importance of cognitive function and a limited range of standard measures of visual function in relation to the Capacity to Drive Safely. Capacity to Drive Safely was operationalized using three validated screening measures for older drivers. These included an adaptation of the well validated Useful Field of View (UFOV) and two newer measures, namely a Hazard Perception Test (HPT), and a Hazard Change Detection Task (HCDT).

Method
Community dwelling drivers (n = 297) aged 65–96 were assessed using a battery of measures of cognitive and visual function.

Results
Factor analysis of these predictor variables yielded factors including Executive/Speed, Vision (measured by visual acuity and contrast sensitivity), Spatial, Visual Closure, and Working Memory. Cognitive and Vision factors explained 83–95% of age-related variance in the Capacity to Drive Safely. Spatial and Working Memory were associated with UFOV, HPT and HCDT, Executive/Speed was associated with UFOV and HCDT and Vision was associated with HPT.

Conclusion
The Capacity to Drive Safely declines with chronological age, and this decline is associated with age-related declines in several higher order cognitive abilities involving manipulation and storage of visuospatial information under speeded conditions. There are also age-independent effects of cognitive function and vision that determine driving safety.
Keyword Hazard perception
Useful field of view
Cognitive decline
Driving
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2013 Collection
School of Psychology Publications
 
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Created: Fri, 12 Apr 2013, 14:39:20 EST by Mrs Alison Pike on behalf of School of Psychology