Titre du document / Document title
Form perception with a 49-point electrotactile stimulus array on the tongue : A technical note
Auteur(s) / Author(s)
BACH-Y-RITA P. ;
KACZMAREK K. A. ;
TYLER M. E. ;
GARCIA-LARA J. ;
Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)
Center for Neuroscience and the Department of Rehabilitation Medicine, Trace R&D Center, University of Wisconsin, Madison, WI, 53706, ETATS-UNIS
Medical School, Universidad Autónoma del Estado de Morelos, Cuernavaca, MEXIQUE
Résumé / Abstract
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 4×4, 5×5, 6×6, and 7×7 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 1.612 mA. Tongue shape recognition performance across all sizes was 79.8%. The approximate dimensions of the electrotactile array and the dimensions of compartments built into dental retainers have been determined. The goal is to develop a practical, cosmetically acceptable, wireless system for blind persons, with a miniature TV camera, microelectronics, and FM transmitter built into a pair of glasses, and the electrotactile array in a dental orthodontic retainer.
Revue / Journal Title
Journal of rehabilitation research and development
ISSN
0748-7711
CODEN JRRDDB
Source / Source
1998, vol. 35, n
o4, pp. 427-430 (11 ref.)
Langue / Language
Anglais
Editeur / Publisher
Rehabilitation Research and Development Service, Baltimore, MD, ETATS-UNIS
(1984)
(Revue)
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Localisation / Location
INIST-CNRS, Cote INIST : 21399, 35400008393465.0070
Nº notice refdoc (ud4) : 1838034
