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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. 15, Iss. 8 — Aug. 1, 1998
  • pp: 1987–2002

Equivalence between temporal frequency and modulation depth for flicker response suppression: analysis of a three-process model of visual adaptation

Alvin Eisner, Arthur G. Shapiro, and Joel A. Middleton  »View Author Affiliations


JOSA A, Vol. 15, Issue 8, pp. 1987-2002 (1998)
http://dx.doi.org/10.1364/JOSAA.15.001987


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Abstract

We analyze adaptation processes responsible for eliciting and alleviating flicker response suppression, which is a class of phenomena characterized by the selective reduction of visual response to the ac component of a flickering light. Stimulus conditions were chosen that would allow characteristic features of flicker response suppression to be defined and manipulated systematically. Data are presented to show that reducing the sinusoidal modulation depth of an 11-Hz stimulus can correspond precisely to raising the temporal frequency of a fully modulated stimulus. In each case there is a nonmonotonic relation between flicker response and dc test illuminance. The nonmonotonic relation cannot be explained by adaptation models that postulate multiplicative and subtractive adaptation processes followed by a single static saturating nonlinearity, even when temporal frequency filters are incorporated into such models. A satisfactory explanation requires an additional contrast gain-control process. This process enhances flicker response at progressively lower temporal response contrasts as the illuminance of a surrounding adaptation field increases.

© 1998 Optical Society of America

OCIS Codes
(330.1800) Vision, color, and visual optics : Vision - contrast sensitivity
(330.4060) Vision, color, and visual optics : Vision modeling
(330.5510) Vision, color, and visual optics : Psychophysics
(330.6790) Vision, color, and visual optics : Temporal discrimination
(330.7320) Vision, color, and visual optics : Vision adaptation

History
Original Manuscript: November 13, 1997
Revised Manuscript: March 19, 1998
Manuscript Accepted: March 23, 1998
Published: August 1, 1998

Citation
Alvin Eisner, Arthur G. Shapiro, and Joel A. Middleton, "Equivalence between temporal frequency and modulation depth for flicker response suppression: analysis of a three-process model of visual adaptation," J. Opt. Soc. Am. A 15, 1987-2002 (1998)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-15-8-1987

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