Under which conditions do the skin and probe decouple during sinusoidal vibrations?
Under which conditions do the skin and probe decouple during sinusoidal vibrations?
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在什么条件下,皮肤和探头在正弦振动期间解耦?
DOI:
10.1007/s002210050891
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发表时间:
1999
影响因子:
2
通讯作者:
Bolanowski,SJ
中科院分区:
文献类型:
--
作者:
Cohen,JC;Makous,JC;Bolanowski,SJ
Previous experiments performed on monkey and human fingertips suggested that the skin surface and stimulus probe decouple for sinusoidal displacements applied perpendicularly to the skin surface. From these observations, it was concluded that sinusoidal vibration may not be a suitable stimulus for understanding and modeling the tactile system. We repeated these experiments on human observers using stimulus frequencies ranging from 0.5 to 240 Hz and with displacement amplitudes up to 1 mm peak-to-peak (p-p). The skin and probe movements were measured in the steady-state using stroboscopic illumination and video microscopy. Contrary to previous conclusions, we found that decoupling did not occur for amplitudes less then 0.25 mm p-p, regardless of stimulus frequency. Decoupling was only observed for stimulus amplitudes greater than 0.25 mm over the stimulus-frequency range investigated. To further investigate this effect, a modified stimulus contactor was used, which permitted the measurement of the skin’s movement using reflected light. Measurements were made on both the index fingertip and the thenar eminence. Regardless of body site, no decoupling between the skin and stimulus probe was observed for frequencies ranging from 20 to 100 Hz up to displacements of 0.25 mm p-p. These levels are well within the range used in most human psychophysical experiments performed on these parts of the body. We conclude that sinusoidal vibration can be used reliably to stimulate the tactile system and is an appropriate stimulus for developing models of touch.
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影响因子:
2.4
作者:
R. Verrillo
通讯作者:
R. Verrillo
DOI:
--
发表时间:
1971
期刊:
影响因子:
--
作者:
R. Verrillo
通讯作者:
R. Verrillo
DOI:
--
发表时间:
1986
期刊:
The Laryngoscope
影响因子:
--
作者:
W. Larrabee;D. Sutton
通讯作者:
D. Sutton
DOI:
--
发表时间:
1972
期刊:
影响因子:
--
作者:
T. J. Moore;J. Mundie
通讯作者:
J. Mundie
影响因子:
2.4
作者:
R. A. Schmiedt;J. Zwislocki
通讯作者:
J. Zwislocki