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Updated: May 6, 2026

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Visual motion contrast thresholds in the periphery predict older drivers' behavior at intersections.

Vincent Francoeur1, Christine Saber1, Steven Henderson2

  • 1School of Psychology, University of Ottawa, 120 University Private, Ottawa, Ontario K1N 6N5, Canada.

Accident; Analysis and Prevention
|January 21, 2026
PubMed
Summary
This summary is machine-generated.

Peripheral motion contrast sensitivity, measured by the PMCT-2 test, predicts unsafe driving behaviors in older adults. This visual function test correlates with real-world driving errors at intersections, especially incomplete stops.

Keywords:
Contrast sensitivityDriving errorsIntersectionsOlder driversPeripheral motion contrast threshold

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Area of Science:

  • Neuroscience
  • Ophthalmology
  • Gerontology

Background:

  • Age-related decline in peripheral motion contrast sensitivity is linked to magnocellular pathway dysfunction.
  • Previous research indicated the Peripheral Motion Contrast Threshold 2-minute test (PMCT-2) predicts hazardous driving in simulations.

Purpose of the Study:

  • To investigate the correlation between PMCT-2 scores and on-road driving performance at intersections in older drivers.
  • To determine if PMCT-2 can predict real-world driving errors.

Main Methods:

  • Fifty older drivers (65-89) were video-recorded navigating urban routes.
  • Driving outcomes at intersections were coded, focusing on scanning and compliance errors.
  • Statistical analyses, including regression, were used to assess correlations with PMCT-2 scores.

Main Results:

  • Significant correlations were found between PMCT-2 scores and scanning errors at various intersection types.
  • PMCT-2 scores significantly correlated with driving compliance errors, particularly incomplete stops.
  • PMCT-2 remained a significant predictor of stop-sign compliance errors, even after adjusting for age, gender, and scanning errors.

Conclusions:

  • The PMCT-2 test demonstrates potential in predicting older drivers' on-road driving performance at intersections.
  • Findings support the PMCT-2's utility beyond simulated environments for assessing driving safety in aging populations.