Invariance of the psychometric function for character recognition across the visual field.

@article{Strasburger2001InvarianceOT,
  title={Invariance of the psychometric function for character recognition across the visual field.},
  author={Hans Strasburger},
  journal={Perception & psychophysics},
  year={2001},
  volume={63 8},
  pages={1356-76}
}
The psychometric function for recognition of singly presented digits as a function of digit contrast was measured at 2 degrees steps across the horizontal meridian of the visual field, under monocular and binocular viewing conditions. A maximum-likelihood staircase procedure was used in a 10-alternative forced-choice recognition paradigm to gather the data Both the Weibull and the logistic psychometric functions provide excellent fits to the observed data. The slopes of these functions at their… CONTINUE READING