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Age and inconsistency in driving performance.

David Bunce1, Mark S Young, Alison Blane

  • 1Centre for Cognition and Neuroimaging, Department of Psychology, Brunel University, London UB8 3PH, United Kingdom. david.bunce@brunel.ac.uk

Accident; Analysis and Prevention
|October 6, 2012
PubMed
Summary
This summary is machine-generated.

Older drivers show greater inconsistency in driving performance, particularly on highways. This age-related driving inconsistency may stem from cognitive control deficits, impacting attention and executive functions.

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Area of Science:

  • Cognitive Neuropsychology
  • Gerontology
  • Human Factors Engineering

Background:

  • Within-person variability in cognitive performance offers insights into aging mental processes.
  • Intraindividual variability is rarely studied in everyday activities like driving.
  • Driving behavior is influenced by cognitive functions and may reveal age-related changes.

Purpose of the Study:

  • To assess age differences in driving inconsistency.
  • To investigate the relationship between cognitive variability and driving performance in younger and older adults.
  • To explore the impact of driving conditions on age-related driving inconsistency.

Main Methods:

  • A fully immersive driving simulator was used to test younger (M age=21.29) and older (M age=71.24) drivers.
  • Driving performance was measured in terms of headway and lateral lane position across residential, urban, and motorway conditions.
  • Participants also completed cognitive assessments and reported perceived mental demands.

Main Results:

  • Older drivers exhibited significantly greater inconsistency in headway and lateral lane position compared to younger drivers.
  • This increased inconsistency in older drivers was more pronounced in the faster motorway condition.
  • Older drivers reported higher perceived mental demands and showed greater within-person variability in cognitive measures.

Conclusions:

  • Age-related deficits in attentional and executive control likely contribute to reduced driving performance consistency in older adults.
  • In-vehicle systems could be developed to support attention and intervene during safety-critical driving situations for older drivers.
  • Understanding driving inconsistency is crucial for developing targeted interventions to enhance older driver safety.