Dynamics of the Vibration Sense at Low Frequency

Abstract
The dynamic properties of the vibration sense in the human skin were investigated by means of psychophysical methods using stimuli with different time courses. Sinusoidal deformations and deformations linearly increasing with time were used. Up to frequencies of 30 cps the results are described very well by a differentiating system having a time constant of about 30 msec. This is in good agreement with electrophysiological observations. "Rectifying" properties in agreement with electrophysiological experiments are also found. Possible mechanisms underlying these phenomena are discussed.

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