Tactile perception in blind Braille readers: a psychophysical study of acuity and hyperacuity using gratings and dot patterns.

@article{Grant2000TactilePI,
  title={Tactile perception in blind Braille readers: a psychophysical study of acuity and hyperacuity using gratings and dot patterns.},
  author={Arthur C. Grant and M C Thiagarajah and K. Sathian},
  journal={Perception & psychophysics},
  year={2000},
  volume={62 2},
  pages={301-12}
}
It is not clear whether the blind are generally superior to the sighted on measures of tactile sensitivity or whether they excel only on certain tests owing to the specifics of their tactile experience. We compared the discrimination performance of blind Braille readers and age-matched sighted subjects on three tactile tasks using precisely specified stimuli. Initially, the blind significantly outperformed the sighted at a hyperacuity task using Braille-like dot patterns, although, with… CONTINUE READING

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