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Relationship between pulse rate and pulse width for a constant-intensity level of electrocutaneous stimulation

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Abstract

The relationship between pulse rate (PR) and pulse width (PW) for a constant level of electrocutaneous stimulation was ascertained using the method of comparative judgments. Twelve volunteer subjects were asked to adjust the PW of a Comparison Stimulus (S2) until its intensity matched that of a Standard Stimulus (S1) for which the PW was 200 μs and PR was 10 or 20 pulses per sec (pps). As expected, the experimental results indicate that the PW of a constant-current amplitude pulse train should decrease as its PR increases if a constant level of tactile stimulation intensity is desired. However, PW and PR were not linear-inversely related (p<0.005). Rather, their relationship was best described by a logarithmic equation: log PW=a+b log PR, where PW is in microseconds,a is 2.82,b is −0.412, and PR is between 1 and 100 pps. Utilization of this relationship during electrical stimulation of the skin sense will decouple the intensity component of the tactile sensation from its frequency component, thereby enhancing the potential comfort and clarity of this sensory communication interface.

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References

  1. Babkoff, H. Electrocutaneous psychophysical input-output functions and temperal integration.Perception and Psychophysics 23:251–257, 1978.

    CAS  PubMed  Google Scholar 

  2. Bach-y-Rita, P. Sensory substitution in rehabilitation. InRehabilitation of the Neurological Patient, edited by L. Lillis, M. Sedgwick, and H. Granville, Oxford: Blackwell Press, 1982, pp. 361–383.

    Google Scholar 

  3. Berglund, U. and B. Berglund. Adaptation and recovery in vibrotactile perception.Perceptual and Motor Skills 30:843–853, 1970.

    CAS  PubMed  Google Scholar 

  4. Clippinger, F.W., R. Avery, and B.R. Titus. A sensory feedback system for an upper-limb amputation prosthesis.Bull. Prosth. Res. BPR 10-22:247–258, 1974.

    Google Scholar 

  5. Collins, C.C. Tactile television: Mechanical and electrical image projection.IEEE Trans. Man-Mach. Sys. MMS-11:65–71, 1970.

    Google Scholar 

  6. Geldard, F.A. Adventures in tactile literacy.Am. Psychol. 12:115–124, 1957.

    Google Scholar 

  7. Geldard, F.A.The Human Senses, 2nd ed. New York: Wiley, 1972, pp. 258–289.

    Google Scholar 

  8. Gescheider, G.A. Some comparisons between touch and hearing.IEEE Trans. Man-Mach. Sys. MMS-11:28–35, 1970.

    Google Scholar 

  9. Gibson, R.H. Electrical stimulation of pain and touch. InThe Skin Senses, edited by D.R. Kenshalo, Springfield, III.: Charles C. Thomas, 1968, pp. 223–261.

    Google Scholar 

  10. Hahn, J.F. Vibrotactile adaptation and recovery measured by two methods.J. Exper. Psychol. 71:655–658, 1966.

    CAS  Google Scholar 

  11. Hoffman, M.A. and N.W. Heimstra. Tracking performance with visual, auditory, and electrocutaneous displays.Hum. Factors 14:131–138, 1972.

    Google Scholar 

  12. Kume, Y., and H. Ohzu. Electrocutaneous stimulation for information transmission—II: Spatial characteristics of skin sensations.Acupunc. Electrotherapeut. Res. Int. J. 6:223–234, 1981.

    CAS  Google Scholar 

  13. Levison, W.H., R.B. Tanner, and T.J. Triggs. Evaluation of tactual displays for flight control. Proceedings, 9th Ann. Conference on Manual Control, 1973, pp. 55–70.

  14. Manning, S. and E. Rosenstock.Classical Psychophysics and Scaling. New York: McGraw-Hill, 1968.

    Google Scholar 

  15. Marks, L.E. Summation of vibrotactile intensity: An analog to auditory critical lands?Sensory Processes 3:188–203, 1979.

    CAS  PubMed  Google Scholar 

  16. Marks, L.E., J.P. Girvin, P. Ning, M. O'Keefe, J.L. Antunes, D.O. Quest, and W.H. Dobelle. Perceptual processing of spatio-temporal patterns of electrocutaneous stimulation.IEEE Frontiers Eng. Health Care 4: 333–338, 1982.

    Google Scholar 

  17. Melen, R.D. and D.H. Meindl. Electrocutaneous stimulation in a reading aid for the blind.IEEE Trans. Biomed. Eng., BME-18:1–3, 1971.

    CAS  Google Scholar 

  18. Pfeiffer, E.A. and D.H. Terrel. A prosthetic device to provide tactile information for the anesthetic hand.Digest of the 7th International Conference on Medical and Biological Engineering, Stockholm, Sweden, 1967, p. 452.

  19. Prior, R.E. Study of electrocutaneous parameters relevant to dynamic tactual communication systems. Ph.D. diss. School of Engineering and Applied Science, UCLA, Los Angeles, Calif., 1972.

    Google Scholar 

  20. Prior, R.E., and J. Lyman, P.A. Case, and C.M. Scott. Supplemental sensory feedback for the VA/NU myoelectric hand—Background and preliminary designs.Bull. Prosth. Res. BPR10-26: 170–191, 1976.

    Google Scholar 

  21. Rollman, G.B. Electrocutaneous stimulation: Psychometric functions and temporal integration.Perception and Psychophysics 5:289–293, 1969.

    Google Scholar 

  22. Saunders, F.A. Recommended procedures for electrocutaneous displays. InFunctional Electrical Stimulation, edited by F.T. Hambrecht and J.B. Reswick, New York: Marcel Dekker, 1977, pp. 303–309.

    Google Scholar 

  23. Schmid, H.P. and Bekey, G.A. Tactile information processing by human operators in control systems.IEEE Trans. Sys. Man Cybernetics SMC-18:860–866, 1978.

    Google Scholar 

  24. Scott, R.N., R.H. Brittain, R.R. Caldwell, A.B. Cameron, and V.A. Dunfield. Sensory feedback system compatible with myoelectric control.Med. Biol. Eng. Comput. 18:65–69, 1980.

    CAS  PubMed  Google Scholar 

  25. Shannon, G.F. A myoelectrically-controlled prosthesis with sensory feedback.Med. Biol. Eng. Comput. 17:73–80, 1979.

    CAS  PubMed  Google Scholar 

  26. Szeto, A.Y.J. Electrocutaneous code pairs for artifical sensory communication systems.Ann. Biomed. Eng. 10:175–192, 1982.

    Article  CAS  PubMed  Google Scholar 

  27. Szeto, A.Y.J. and J. Lyman. Comparison of codes for sensory feedback using electrocutaneous trackiing.Ann. Biomed Eng. 5:367–383, 1977.

    Article  CAS  PubMed  Google Scholar 

  28. Szeto, A.Y.J., J. Lyman and R.E. Prior. Electrocutaneous pulse rate and pulse width psychometric functions for sensory communications,Hum. Factors 21:241–249, 1979.

    CAS  PubMed  Google Scholar 

  29. Szeto, A.Y.J., R.E. Prior, and J. Lyman. Electrocutaneous tracking: A methodology for evaluating sensory feedback codes.IEEE Trans. Biomed. Eng. BME-26:47–49, 1979.

    CAS  Google Scholar 

  30. Szeto, A.Y.J. and F.A. Saunders, Electrocutaneous stimulation for sensory communication in rehabilitation engineering.IEEE Trans. Biomed. Eng. BME-29:300–308, 1982.

    CAS  Google Scholar 

  31. Tanie, K., S. Tachi, K. Komoriya, and M. Abe. Study of electrocutaneous parameters for application to dynamic tactual communication systems. Proceedings, First Mediterranean Conference on Medical and Biological Engineering, Sorrento, Italy, September 1977.

  32. White, B.W., F.A. Saunders, L. Scadden, P. Bach-y-Rita, and C.C. Collins. Seeing with the skin.Perception and Psychophysics 7:23–27, 1970.

    Google Scholar 

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  1. Department of Electrical and Computer Engineering, San Diego State University, 92182-0190, San Diego, California

    Andrew Y. J. Szeto

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Szeto, A.Y.J. Relationship between pulse rate and pulse width for a constant-intensity level of electrocutaneous stimulation. Ann Biomed Eng 13, 373–383 (1985). https://doi.org/10.1007/BF02407767

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