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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. 11 — Nov. 1, 1999
  • pp: 2601–2611

Temporal detection in human vision: dependence on spatial frequency

R. E. Fredericksen and R. F. Hess  »View Author Affiliations


JOSA A, Vol. 16, Issue 11, pp. 2601-2611 (1999)
http://dx.doi.org/10.1364/JOSAA.16.002601


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Abstract

In the study of perception of temporal changes in luminance, it is customary to model perceptual performance as based on one or more linear filters. The task is then to estimate the temporal impulse responses or the representation of the impulse response in the frequency domain. Previously, temporal masking data have been used to estimate the properties and numbers of these temporal mechanisms (filters) in central vision for 1-cycle-per-degree (cpd) targets [Vision Res. 38, 1023 (1998)]. The same methods have been used to explore how properties of the estimated filters change with stimulus contrast energy [J. Opt. Soc. Am. A 14, 2557 (1997)]. We present estimated properties for temporal mechanisms that detect low spatial-frequency patterns. The results indicate that two filters provide the best model for performance when mask contrast is significant. There are also differences between properties for mechanisms that detect signal spatial frequencies of 1 cpd and 1/3 cpd. The sensitivity of the low-pass mechanism relative to the bandpass mechanism is reduced at 1/3 cpd, consistent with previous findings.

© 1999 Optical Society of America

OCIS Codes
(330.1880) Vision, color, and visual optics : Detection
(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

History
Original Manuscript: December 1, 1998
Revised Manuscript: July 27, 1999
Manuscript Accepted: July 27, 1999
Published: November 1, 1999

Citation
R. E. Fredericksen and R. F. Hess, "Temporal detection in human vision: dependence on spatial frequency," J. Opt. Soc. Am. A 16, 2601-2611 (1999)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-16-11-2601

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