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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Vol. 16, Iss. 3 — Mar. 1, 1999
  • pp: 750–754

Flash masking and facilitation by nearby luminance perturbations

Theodore E. Cohn and Donald I. A. MacLeod  »View Author Affiliations


JOSA A, Vol. 16, Issue 3, pp. 750-754 (1999)
http://dx.doi.org/10.1364/JOSAA.16.000750


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Abstract

Light-adapted foveal luminance increment thresholds were measured for white photopic targets of 1.5-arc min diameter and 220-ms duration. We aimed to learn about the properties of mechanisms that subserve the detection of these targets. To study this subject we developed a noise probe technique that inserts noise close to the site of the stimulus. Threshold is more than doubled when zero-mean luminance noise is placed at a pair of flanking spots in the horizontal meridian centered on the test spot and 1.5 arc min distant. The detection mechanism thus has a broad field, since noise effects persist at 5-arc min separation. The masking effect increases when the noise is in antiphase at the two flanking spots. Neither even- nor odd-symmetric mechanisms are able to explain these findings, regardless of whether linear or nonlinear processing is employed. The target detection may be mediated in part by a motion-sensitive mechanism.

© 1999 Optical Society of America

OCIS Codes
(330.1800) Vision, color, and visual optics : Vision - contrast sensitivity
(330.1880) Vision, color, and visual optics : Detection
(330.5510) Vision, color, and visual optics : Psychophysics
(330.6110) Vision, color, and visual optics : Spatial filtering
(330.6790) Vision, color, and visual optics : Temporal discrimination

Citation
Theodore E. Cohn and Donald I. A. MacLeod, "Flash masking and facilitation by nearby luminance perturbations," J. Opt. Soc. Am. A 16, 750-754 (1999)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-16-3-750


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References

  1. T. E. Cohn and D. I. A. MacLeod, “Flash masking by nearby luminance noise,” in OSA Annual Meeting, Vol. 15 of 1990 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1990), p. 58.
  2. B. Chen, D. I. A. MacLeod, and A. Stockman, “Improvement in human vision under bright light: grain or gain?” J. Physiol. (London) 394, 41–66 (1987).
  3. T. E. Cohn and D. J. Lasley, “Visual sensitivity,” Annu. Rev. Psychol. 37, 495–521 (1986).
  4. T. E. Cohn, “Spatial and temporal summation in human peripheral vision,” in Vision: Coding and Efficiency, C. Blakemore, ed. (Cambridge University, Cambridge, UK, 1990), Chap. 33, pp. 376–385.
  5. P. J. Demarco, Jr., M. G. Brigell, and M. Gordon, “The peripheral flicker effect: desensitization of the luminance pathway by static and modulated light,” Vision Res. 37, 2419–2425 (1997).
  6. D. Willen, Department of Psychology, Harvard University, Cambridge, Mass. 02138 (personal communication, 1990).
  7. T. E. Cohn, L. N. Thibos, and R. N. Kleinstein, “Detectability of a luminance increment,” J. Opt. Soc. Am. 64, 1321–1327 (1974).
  8. A. Fiorentini and M. T. Zoli, “Detection of a target superimposed to a step pattern of illumination. II: Effects of a just perceptible illumination step,” Atti Fond. Giorgio Ronchi 22, 207–217 (1967).
  9. T. E. Cohn and B. L. Gros, “New apparent motion stimulus without correlated space and time change,” Invest. Ophthalmol. Visual Sci. Suppl. 34, 1031–217 (1993).
  10. P. Cavanagh and G. Mather, “Motion: the long and short of it,” Spatial Vision 4, 103–129 (1989).
  11. T. E. Cohn, “Quantum fluctuation limit in foveal vision,” Vision Res. 16, 573–579 (1976).
  12. B. L. Gros, D. R. Pope, and T. E. Cohn, “Relative efficiency for the detection of apparent motion,” Vision Res. 36, 2297–2302 (1996).
  13. T. W. Butler, P. E. King-Smith, R. K. Moore, and L. A. Riggs, “Visual sensitivity to retinal image movements,” J. Physiol. (London) 263, 170–171 (1976).
  14. A. B. Watson, H. B. Barlow, and J. G. Robson, “What does the eye see best?” Nature (London) 302, 419–422 (1983).

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