Skin Profiles During Sinusoidal Vibration of the Fingerpad

Overview

Journal Exp Brain Res

Specialty Neurology

Date 1989 Jan 1

PMID 2792271

Citations 2

Authors

A W Goodwin

K T John

I DARIAN-SMITH

Affiliations

Soon will be listed here.

Abstract

Skin on the fingertips of humans and monkeys was stimulated by a probe vibrating with a sinusoidal displacement. The probe and the skin were illuminated stroboscopically and were viewed through a dissecting microscope. The stroboscope was triggered by the sinusoidal generator via a digital delay, so that the position of both the probe and the skin could be measured at regular intervals during the cycle. Six frequencies and 3 amplitudes of vibration were used. During a portion of the cycle the probe and the skin separated, so that the skin waveform was a clipped sinusoid. An increase in stimulus frequency increased the fraction of the cycle during which the probe and the skin were separated. Adding a static pre-indentation to the vibration reduced this fraction, and for this condition a decrease in vibratory amplitude also decreased the fraction. Thus the skin motion contained harmonics that were not present in the probe motion, and the harmonic content differed for different stimulus conditions.

Citing Articles

A Review of Hand-Arm Vibration Studies Conducted by US NIOSH since 2000.

Dong R, Wu J, Xu X, Welcome D, Krajnak K Vibration. 2021; 4(2):482-528.

PMID: 34414357 PMC: 8371562. DOI: 10.3390/vibration4020030.

Frequency-domain measurement of vibrotactile driving responses in first-order afferent populations.

KELLY E, McLaughlin D, DUNSEATH W, Folger S, JONES Jr F, Hudnell H Exp Brain Res. 1996; 109(3):500-6.

PMID: 8817281 DOI: 10.1007/BF00229635.

References

Goodwin A, John K, Sathian K, DARIAN-SMITH I . Spatial and temporal factors determining afferent fiber responses to a grating moving sinusoidally over the monkey's fingerpad. J Neurosci. 1989; 9(4):1280-93. PMC: 6569869. View

Lindblom U, Lund L . The discharge from vibration-sensitive receptors in the monkey foot. Exp Neurol. 1966; 15(4):401-17. DOI: 10.1016/0014-4886(66)90138-5. View

Johansson R, Landstrom U, Lundstrom R . Responses of mechanoreceptive afferent units in the glabrous skin of the human hand to sinusoidal skin displacements. Brain Res. 1982; 244(1):17-25. DOI: 10.1016/0006-8993(82)90899-x. View

FRANKE E . Mechanical impedance of the surface of the human body. J Appl Physiol. 1951; 3(10):582-90. DOI: 10.1152/jappl.1951.3.10.582. View

Freeman A, Johnson K . A model accounting for effects of vibratory amplitude on responses of cutaneous mechanoreceptors in macaque monkey. J Physiol. 1982; 323:43-64. PMC: 1250344. DOI: 10.1113/jphysiol.1982.sp014060. View

Labs S, Gescheider G, Fay R, Lyons C . Psychophysical tuning curves in vibrotaction. Sens Processes. 1978; 2(3):231-47. View

LaMotte R, Srinivasan M . Tactile discrimination of shape: responses of slowly adapting mechanoreceptor afferents to a step stroked across the monkey fingerpad. J Neurosci. 1987; 7(6):1655-71. PMC: 6568888. View

LaMotte R, MOUNTCASTLE V . Capacities of humans and monkeys to discriminate vibratory stimuli of different frequency and amplitude: a correlation between neural events and psychological measurements. J Neurophysiol. 1975; 38(3):539-59. DOI: 10.1152/jn.1975.38.3.539. View

Talbot W, DARIAN-SMITH I, Kornhuber H, MOUNTCASTLE V . The sense of flutter-vibration: comparison of the human capacity with response patterns of mechanoreceptive afferents from the monkey hand. J Neurophysiol. 1968; 31(2):301-34. DOI: 10.1152/jn.1968.31.2.301. View

10.

Morley J, Goodwin A . Sinusoidal movement of a grating across the monkey's fingerpad: temporal patterns of afferent fiber responses. J Neurosci. 1987; 7(7):2181-91. PMC: 6568946. View

11.

Lundstrom R . Local vibrations--mechanical impedance of the human hand's glabrous skin. J Biomech. 1984; 17(2):137-44. DOI: 10.1016/0021-9290(84)90131-3. View

12.

Ferrington D, Nail B, Rowe M . Human tactile detection thresholds: modification by inputs from specific tactile receptor classes. J Physiol. 1977; 272(2):415-33. PMC: 1353566. DOI: 10.1113/jphysiol.1977.sp012052. View

13.

Lindblom U, Tapper D . Terminal properties of a vibro-tactile sensor. Exp Neurol. 1967; 17(1):1-15. DOI: 10.1016/0014-4886(67)90117-3. View

14.

Looft F . Response of cat cutaneous mechanoreceptors to punctate and grating stimuli. J Neurophysiol. 1986; 56(1):208-20. DOI: 10.1152/jn.1986.56.1.208. View

15.

Phillips J, Johnson K, Hsiao S . Spatial pattern representation and transformation in monkey somatosensory cortex. Proc Natl Acad Sci U S A. 1988; 85(4):1317-21. PMC: 279758. DOI: 10.1073/pnas.85.4.1317. View

16.

Freeman A, Johnson K . Cutaneous mechanoreceptors in macaque monkey: temporal discharge patterns evoked by vibration, and a receptor model. J Physiol. 1982; 323:21-41. PMC: 1250343. DOI: 10.1113/jphysiol.1982.sp014059. View

17.

Yamamoto T, Oka H . Experimental modelling of biomechanical impedance characteristics. Med Biol Eng Comput. 1986; 24(5):493-8. DOI: 10.1007/BF02443965. View

18.

Oka H, Yamamoto T . Measuring device for biomechanical impedance using an impedance head. Med Biol Eng Comput. 1983; 21(6):778-80. DOI: 10.1007/BF02464045. View

19.

Merzenich M, Harrington T . The sense of flutter-vibration evoked by stimulation of the hairy skin of primates: comparison of human sensory capacity with the responses of mechanoreceptive afferents innervating the hairy skin of monkeys. Exp Brain Res. 1969; 9(3):236-60. DOI: 10.1007/BF00234457. View