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Visual motion perception predicts driving hazard perception ability
Author(s) -
Lacherez Philippe,
Au Sandra,
Wood Joanne M.
Publication year - 2014
Publication title -
acta ophthalmologica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.534
H-Index - 87
eISSN - 1755-3768
pISSN - 1755-375X
DOI - 10.1111/j.1755-3768.2012.02575.x
Subject(s) - stimulus (psychology) , audiology , visual perception , perception , motion perception , psychology , visual acuity , psychophysics , poison control , cognitive psychology , medicine , neuroscience , ophthalmology , medical emergency
. Purpose: To examine the basis of previous findings of an association between indices of driving safety and visual motion sensitivity and to examine whether this association could be explained by low‐level changes in visual function. Methods: A total of 36 visually normal participants (aged 19–80 years) completed a battery of standard vision tests including visual acuity, contrast sensitivity and automated visual fields and two tests of motion perception including sensitivity for movement of a drifting Gabor stimulus and sensitivity for displacement in a random dot kinematogram ( D min ). Participants also completed a hazard perception test (HPT), which measured participants’ response times to hazards embedded in video recordings of real‐world driving, which has been shown to be linked to crash risk. Results: D min for the random dot stimulus ranged from −0.88 to −0.12 log minutes of arc, and the minimum drift rate for the Gabor stimulus ranged from 0.01 to 0.35 cycles per second. Both measures of motion sensitivity significantly predicted response times on the HPT. In addition, while the relationship involving the HPT and motion sensitivity for the random dot kinematogram was partially explained by the other visual function measures, the relationship with sensitivity for detection of the drifting Gabor stimulus remained significant even after controlling for these variables. Conclusion: These findings suggest that motion perception plays an important role in the visual perception of driving‐relevant hazards independent of other areas of visual function and should be further explored as a predictive test of driving safety. Future research should explore the causes of reduced motion perception to develop better interventions to improve road safety.