Hyperacuity thresholds of 1 sec: theoretical predictions and empirical validation.

@article{Klein1985HyperacuityTO,
  title={Hyperacuity thresholds of 1 sec: theoretical predictions and empirical validation.},
  author={Stanley A. Klein and Dennis M Levi},
  journal={Journal of the Optical Society of America. A, Optics and image science},
  year={1985},
  volume={2 7},
  pages={1170-90}
}
Bisection thresholds were measured as a function of the separation of the lines. For separations of less than 1.5 min, the addition of flanking lines facilitates bisection so that thresholds of less than 1 sec for discriminating the direction of offset could be reliably obtained. For larger separations an interval could be bisected to an accuracy of 1 part in 60. Experiments varying the length, luminance, and overlap of the lines suggest that different cues are used in these two regimes. A dual… CONTINUE READING

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