Distraction of attention and the slope of the psychometric function.

  title={Distraction of attention and the slope of the psychometric function.},
  author={Leonid L. Kontsevich and Christopher W. Tyler},
  journal={Journal of the Optical Society of America. A, Optics, image science, and vision},
  volume={16 2},
The influential uncertainty model [J. Opt. Soc. Am. A 2, 1508 (1985)] attributes nonlinear contrast sensitivity near threshold to the inability of the observer to discriminate between the signal from stimulated locations and the noise from nonstimulated locations. We introduce an alternative interpretation, the distraction model, to describe the behavior of an observer who knows exactly which location was stimulated but may miss the test stimulus because attention has been distracted by… CONTINUE READING

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