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Optics Express

Optics Express

  • Editor: J. H. Eberly
  • Vol. 7, Iss. 4 — Aug. 14, 2000
  • pp: 172–177

Transient glare: its effect on the lower threshold of motion

José F. Barraza and Elisa M. Colombo  »View Author Affiliations

Optics Express, Vol. 7, Issue 4, pp. 172-177 (2000)

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We measured the lower threshold of motion (LTM) of suprathreshold gratings as a function of spatial frequency and contrast, for both transient glare and no-glare conditions. A two alternatives forced choice paradigm, using the method of constant stimuli, was adopted to measure the LTM. The LTM occurs at constant velocity. This velocity threshold is higher for transient glare condition than for no-glare condition. We found that the sudden onset of glare increases LTM over the whole range of contrasts. We believe the effect of transient glare sources on the lower threshold of motion is due to the transient loss of sensitivity.

© Optical Society of America

OCIS Codes
(330.0330) Vision, color, and visual optics : Vision, color, and visual optics
(330.1800) Vision, color, and visual optics : Vision - contrast sensitivity
(330.4150) Vision, color, and visual optics : Motion detection

ToC Category:
Research Papers

Original Manuscript: June 22, 2000
Published: August 14, 2000

Jose Barraza and Elisa Colombo, "Transient glare: its effect on the lower threshold of motion," Opt. Express 7, 172-177 (2000)

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