“Weber's law” for position: the role of spatial frequency and contrast

@article{Levi1992WebersLF,
  title={“Weber's law” for position: the role of spatial frequency and contrast},
  author={Dennis Michael Levi and Stanley A. Klein},
  journal={Vision Research},
  year={1992},
  volume={32},
  pages={2235-2250}
}
We used Gabor bars to measure the effects of spatial bandwidth, spatial scale, contrast and separation on three-line spatial interval discrimination (bisection). In the first experiment, we used stimuli that were well above threshold. Our results show that at all spatial scales, spatial interval discrimination (three-line bisection) thresholds are proportional to the separation of the Gabor patches (i.e. Weber's law) when the separation exceeds approximately 2.5 times the standard deviation… CONTINUE READING
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References

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SHOWING 1-10 OF 55 REFERENCES

Towards a general theory of the visual acuitics lit1 shape and spatial arrangement

  • R. J.Watt.
  • J;/.sion Reserrrch. 24, 1377 1386.
  • 1984
Highly Influential
10 Excerpts

Effects of contrast and spatial frequency on Vernier acuity

  • A. Bradley
  • Skottun
  • 1987
Highly Influential
2 Excerpts

Visibility and Vernier ,tcurt> lirr

  • Waugh, .I S., M Levi.D.
  • 1993

An Excel macro for transformed and weighted averaging

  • S. A. Klein
  • Behavior Research Methods , Instruments , and…
  • 1992

Cynthia Nguyen for her help, both as an observer, and in the analysis and plotting of the data She was supported in part by a short term training grant (T35 EY07088) from the National Institutes

  • Robert Hess
  • 1992
1 Excerpt

Spatial scale considerations for “ Weber ’ s law ” of spatial position

  • A. Hayes, R. F. Hess
  • Investigative Ophthalmology and Visual Science
  • 1992
1 Excerpt

Hyperacuity

  • M. J. Morgan
  • Regan, D. M. (Ed.), Vision and visual dysfunction…
  • 1991
1 Excerpt

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