• Corpus ID: 33721569

Form perception with a 49-point electrotactile stimulus array on the tongue: a technical note.

  title={Form perception with a 49-point electrotactile stimulus array on the tongue: a technical note.},
  author={Paul Bach-y-Rita and Kurt A. Kaczmarek and Mitchell E. Tyler and Jorge Garc{\'i}a‐Lara},
  journal={Journal of rehabilitation research and development},
  volume={35 4},
Form perception with the tongue was studied with a 49-point electrotactile array. Five sighted adult human subjects (3M/2F) each received 4 blocks of 12 tactile patterns, approximations of circles, squares, and vertex-up equilateral triangles, sized to 4x4, 5x5, 6x6, and 7x7 electrode arrays. Perception with electrical stimulation of the tongue is better than with fingertip electrotactile stimulation, and the tongue requires 3% (5-15 V) of the voltage. The mean current for tongue subjects was 1… 

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