Now showing items 1-5 of 5

    • Differential effects of refractive blur on day and nighttime driving performance 

      Wood, Joanne M.; Collins, Michael J.; Chaparro, Alex; Marszalek, Ralph P.; Carberry, Trent P.; Lacherez, Philippe; Chu, Byoung Sun (Association for Research in Vision and Ophthalmology, Inc., 2014-04)
      PURPOSE. To investigate the effect of different levels of refractive blur on real-world driving performance measured under day and nighttime conditions. METHODS. Participants included 12 visually normal, young adults ...
    • Even moderate visual impairments degrade drivers' ability to see pedestrians at night 

      Wood, Joanne M.; Tyrrell, Richard A.; Chaparro, Alex; Marszalek, Ralph P.; Carberry, Trent P.; Chu, Byoung Sun (Association for Research in Vision and Ophthalmology Inc., 2012-03-16)
      PURPOSE. To determine the effect of moderate levels of refractive blur and simulated cataracts on nighttime pedestrian conspicuity in the presence and absence of headlamp glare. METHODS. The ability to recognize pedestrians ...
    • Hearing impairment affects older people's ability to drive in the presence of distracters 

      Hickson, Louise; Chaparro, Alex; Lacherez, Philippe; Marszalek, Ralph P. (Blackwell Science, 2010-06)
      OBJECTIVES: To investigate the effects of hearing impairment and distractibility on older people's driving ability, assessed under real-world conditions.DESIGN: Experimental cross-sectional study.SETTING: University ...
    • Seeing pedestrians at night: Visual clutter does not mask biological motion 

      Tyrrell, Richard A.; Wood, Joanne M.; Chaparro, Alex; Carberry, Trent P.; Chu, Byoung Sun; Marszalek, Ralph P. (Elsevier Ltd., 2009-05)
      Although placing reflective markers on pedestrians' major joints can make pedestrians more conspicuous to drivers at night, it has been suggested that this "biological motion" effect may be reduced when visual clutter is ...
    • Using biological motion to enhance the conspicuity of roadway workers 

      Wood, Joanne M.; Tyrrell, Richard A.; Marszalek, Ralph P.; Lacherez, Philippe; Chaparro, Alex; Britt, Thomas W. (Elsevier Ltd., 2011-05)
      This study examined whether the conspicuity of road workers at night can be enhanced by distributing retroreflective strips across the body to present a pattern of biological motion (biomotion). Twenty visually normal ...