Automobile accidents among older adults may be related to difficulties in judging the speed of other vehicles. To examine this possibility, 3 groups of observers in the young adult, middle-aged, and older adult age ranges were asked to estimate the velocity of an isolated automobile traveling at 15-50 mph (24-80 kph). Across all age groups, perceived and actual velocity were related by a power function with an exponent of 1.36. Age was significantly and positively correlated with intercepts, but negatively correlated with exponents; that is, older observers showed less sensitivity to changes in actual velocity. Results bear on the issues of ontogenetic changes in accident involvement and sensitivity to motion.

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  • Corporate Authors:

    American Psychological Association

    750 First Street, NE
    Washington, DC  United States  20002-4242
  • Authors:
    • Scialfa, C T
    • Guzy, L T
    • Leibowitz, H W
    • Garvey, P M
    • Tyrrell, R A
  • Publication Date: 1991


  • English

Media Info

  • Features: Figures; References;
  • Pagination: p. 60-66
  • Serial:
    • Psychology and Aging
    • Volume: 6
    • Issue Number: 1
    • Publisher: American Psychological Association
    • ISSN: 0882-7974

Subject/Index Terms

Filing Info

  • Accession Number: 00713957
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Nov 27 1995 12:00AM