• Corpus ID: 33721569

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

@article{BachyRita1998FormPW,
  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},
  year={1998},
  volume={35 4},
  pages={
          427-30
        }
}
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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References

SHOWING 1-10 OF 17 REFERENCES

Pattern identification on a fingertip-scanned electrotactile display

  • K. KaczmarekM. TylerP. Bach-y-Rita
  • Medicine
    Proceedings of the 19th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. 'Magnificent Milestones and Emerging Opportunities in Medical Engineering' (Cat. No.97CH36136)
  • 1997
TLDR
This study represents the first successful demonstration of electrical stimulation of tactile patterns on the fingertips on a 49-point fingertip-scanned electrotactile display.

Vision Substitution by Tactile Image Projection

WE describe here a vision substitution system which is being developed as a practical aid for the blind and as a means of studying the processing of afferent information in the central nervous

Brain mechanisms in sensory substitution

Tactile displays

“Seeing” with Skin

Substitution sensorielle et qualia

  • Proust J, editor. Perception et intermodalité. Paris: Presses Universitaires de France;
  • 1996

An explorable electrotactile display (thesis)

  • Institute of Technology;
  • 1969

Suppléance sensorielle électronique pour les jeunes enfents aveugles

  • J Fr Ophtalmol
  • 1988