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Journal of the Optical Society of America

Journal of the Optical Society of America

  • Vol. 54, Iss. 7 — Jul. 1, 1964
  • pp: 948–950

Threshold Size of a Moving Object as a Function of its Speed

BALRAJ BHATIA and C. A. VERGHESE  »View Author Affiliations

JOSA, Vol. 54, Issue 7, pp. 948-950 (1964)

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The threshold size of an object as a function of its speed has been determined, with the eyes fixed using seven different speeds from 55 to 600 cm/sec. The relationship is found to be linear and is given by the equation O=a+bV, where O is the threshold size in millimeters, V is the speed in centimeters per second, and a and b are constants characteristic of the individual. It is suggested that the spatio-temporal pattern at the psychovisual cortex is in some way responsible for the observed function.

BALRAJ BHATIA and C. A. VERGHESE, "Threshold Size of a Moving Object as a Function of its Speed," J. Opt. Soc. Am. 54, 948-950 (1964)

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  1. B. Bhatia and C. A. Verghese, J. Opt. Soc. Am. 53, 283 (1963).
  2. B. Bhatia, J. Aviation Med. 28, 309 (1957).
  3. B. Bhatia, J. Opt. Soc. Am. 50, 149 (1960).

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