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Journal of the Optical Society of America A

Journal of the Optical Society of America A


  • Editor: Stephen A. Burns
  • Vol. 24, Iss. 10 — Oct. 1, 2007
  • pp: 3233–3241

Some observations on the masking effects of Mach bands

Tamara Curnow, Dorothy A. Cowie, G. Bruce Henning, and N. Jeremy Hill  »View Author Affiliations

JOSA A, Vol. 24, Issue 10, pp. 3233-3241 (2007)

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There are 8 cycle deg ripples or oscillations in performance as a function of location near Mach bands in experiments measuring Mach bands’ masking effects on random polarity signal bars. The oscillations with increments are 180 ° out of phase with those for decrements. The oscillations, much larger than the measurement error, appear to relate to the weighting function of the spatial-frequency-tuned channel detecting the broadband signals. The ripples disappear with step maskers and become much smaller at durations below 25 ms , implying either that the site of masking has changed or that the weighting function and hence spatial-frequency tuning is slow to develop.

© 2007 Optical Society of America

OCIS Codes
(330.4060) Vision, color, and visual optics : Vision modeling
(330.5000) Vision, color, and visual optics : Vision - patterns and recognition
(330.5510) Vision, color, and visual optics : Psychophysics

ToC Category:
Vision, Color, and Visual Optics

Original Manuscript: March 5, 2007
Manuscript Accepted: June 5, 2007
Published: September 19, 2007

Virtual Issues
Vol. 2, Iss. 11 Virtual Journal for Biomedical Optics

Tamara Curnow, Dorothy A. Cowie, G. Bruce Henning, and N. Jeremy Hill, "Some observations on the masking effects of Mach bands," J. Opt. Soc. Am. A 24, 3233-3241 (2007)

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